RichTextBox Class

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Represents a Windows rich text box control.

public ref class RichTextBox : System::Windows::Forms::TextBoxBase

[System.Windows.Forms.Docking(System.Windows.Forms.DockingBehavior.Ask)]
public class RichTextBox : System.Windows.Forms.TextBoxBase

[<System.Windows.Forms.Docking(System.Windows.Forms.DockingBehavior.Ask)>]
type RichTextBox = class
    inherit TextBoxBase

Public Class RichTextBox
Inherits TextBoxBase

Inheritance

Object

MarshalByRefObject

Component

Control

TextBoxBase

RichTextBox

Attributes

DockingAttribute

Examples

The following code example creates a RichTextBox control that loads an RTF file into the control and searches for the first instance of the word "Text." The code then changes the font style, font size, and font color of the selected text and saves the changes back to the original file. The example code finishes by adding the control to its Form. This example requires that the method created in the example code is added to a Form class and called from the constructor of the form. The example also requires that an RTF file is created, in the root of the C drive, containing the word "Text."

public:
   void CreateMyRichTextBox()
   {
      RichTextBox^ richTextBox1 = gcnew RichTextBox;
      richTextBox1->Dock = DockStyle::Fill;

      richTextBox1->LoadFile( "C:\\MyDocument.rtf" );
      richTextBox1->Find( "Text", RichTextBoxFinds::MatchCase );

      richTextBox1->SelectionFont = gcnew System::Drawing::Font(
         "Verdana", 12, FontStyle::Bold );
      richTextBox1->SelectionColor = Color::Red;

      richTextBox1->SaveFile( "C:\\MyDocument.rtf",
         RichTextBoxStreamType::RichText );

      this->Controls->Add( richTextBox1 );
   }

public void CreateMyRichTextBox()
{
    RichTextBox richTextBox1 = new RichTextBox();
    richTextBox1.Dock = DockStyle.Fill;

    richTextBox1.LoadFile("C:\\MyDocument.rtf");
    richTextBox1.Find("Text", RichTextBoxFinds.MatchCase);

    richTextBox1.SelectionFont = new Font("Verdana", 12, FontStyle.Bold);
    richTextBox1.SelectionColor = Color.Red;

    richTextBox1.SaveFile("C:\\MyDocument.rtf", RichTextBoxStreamType.RichText);

    this.Controls.Add(richTextBox1);
}

Public Sub CreateMyRichTextBox()
    Dim richTextBox1 As New RichTextBox()
    richTextBox1.Dock = DockStyle.Fill
    
    
    richTextBox1.LoadFile("C:\MyDocument.rtf")
    richTextBox1.Find("Text", RichTextBoxFinds.MatchCase)
    
    richTextBox1.SelectionFont = New Font("Verdana", 12, FontStyle.Bold)
    richTextBox1.SelectionColor = Color.Red
    
    richTextBox1.SaveFile("C:\MyDocument.rtf", RichTextBoxStreamType.RichText)
    
    Me.Controls.Add(richTextBox1)
End Sub

Remarks

With the RichTextBox control, the user can enter and edit text. The control also provides more advanced formatting features than the standard TextBox control. Text can be assigned directly to the control, or can be loaded from a rich text format (RTF) or plain text file. The text within the control can be assigned character and paragraph formatting.

The RichTextBox control provides a number of properties you can use to apply formatting to any portion of text within the control. To change the formatting of text, it must first be selected. Only selected text can be assigned character and paragraph formatting. Once a setting has been made to a selected section of text, all text entered after the selection is also formatted with the same settings until a setting change is made or a different section of the control's document is selected. The SelectionFont property enables you to make text bold or italic. You can also use this property to change the size and typeface of the text. The SelectionColor property enables you to change the color of the text. To create bulleted lists you can use the SelectionBullet property. You can also adjust paragraph formatting by setting the SelectionIndent, SelectionRightIndent, and SelectionHangingIndent properties.

The RichTextBox control provides methods that provide functionality for opening and saving files. The LoadFile method enables you to load an existing RTF or ASCII text file into the control. You can also load data from an already opened data stream. The SaveFile enables you to save a file to RTF or ASCII text. Similar to the LoadFile method, you can also use the SaveFile method to save to an open data stream. The RichTextBox control also provides features for finding strings of text. The Find method is overloaded to find both strings of text as well as specific characters within the text of the control.

You can also initialize the RichTextBox control to data stored in memory. For example, you can initialize the Rtf property to a string that contains the text to display, including the RTF codes that determine how the text should be formatted.

If the text within the control contains links, such as a link to a Web site, you can use the DetectUrls property to display the link appropriately in the control's text. You can then handle the LinkClicked event to perform the tasks associated with the link. The SelectionProtected property enables you to protect text within the control from manipulation by the user. With protected text in your control, you can handle the Protected event to determine when the user has attempted to modify protected text, and either alert the user that the text is protected or provide the user with a standard way to manipulate the protected text.

Applications that already use TextBox controls can easily be adapted to make use of RichTextBox controls. However, the RichTextBox control does not have the same 64K character capacity limit of the TextBox control. The RichTextBox is typically used to provide text manipulation and display features similar to word processing applications such as Microsoft Word.

Note

The TextBoxBase.Undo method does not work with the KeyPress or TextChanged events.

Constructors

RichTextBox()

Initializes a new instance of the RichTextBox class.

Properties

AcceptsTab	Gets or sets a value indicating whether pressing the TAB key in a multiline text box control types a TAB character in the control instead of moving the focus to the next control in the tab order. (Inherited from TextBoxBase)
AccessibilityObject	Gets the AccessibleObject assigned to the control. (Inherited from Control)
AccessibleDefaultActionDescription	Gets or sets the default action description of the control for use by accessibility client applications. (Inherited from Control)
AccessibleDescription	Gets or sets the description of the control used by accessibility client applications. (Inherited from Control)
AccessibleName	Gets or sets the name of the control used by accessibility client applications. (Inherited from Control)
AccessibleRole	Gets or sets the accessible role of the control. (Inherited from Control)
AllowDrop	Gets or sets a value indicating whether the control will enable drag-and-drop operations.
Anchor	Gets or sets the edges of the container to which a control is bound and determines how a control is resized with its parent. (Inherited from Control)
AutoScrollOffset	Gets or sets where this control is scrolled to in ScrollControlIntoView(Control). (Inherited from Control)
AutoSize	This property is not relevant to this class.
AutoWordSelection	Gets or sets a value indicating whether automatic word selection is enabled.
BackColor	Gets or sets the background color of the control. (Inherited from TextBoxBase)
BackgroundImage	This property is not relevant to this class.
BackgroundImageLayout	This property is not relevant to this class.
BindingContext	Gets or sets the BindingContext for the control. (Inherited from Control)
BorderStyle	Gets or sets the border type of the text box control. (Inherited from TextBoxBase)
Bottom	Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area. (Inherited from Control)
Bounds	Gets or sets the size and location of the control including its nonclient elements, in pixels, relative to the parent control. (Inherited from Control)
BulletIndent	Gets or sets the indentation used in the RichTextBox control when the bullet style is applied to the text.
CanEnableIme	Gets a value indicating whether the ImeMode property can be set to an active value, to enable IME support. (Inherited from TextBoxBase)
CanFocus	Gets a value indicating whether the control can receive focus. (Inherited from Control)
CanRaiseEvents	Determines if events can be raised on the control. (Inherited from Control)
CanRedo	Gets a value indicating whether there are actions that have occurred within the RichTextBox that can be reapplied.
CanSelect	Gets a value indicating whether the control can be selected. (Inherited from Control)
CanUndo	Gets a value indicating whether the user can undo the previous operation in a text box control. (Inherited from TextBoxBase)
Capture	Gets or sets a value indicating whether the control has captured the mouse. (Inherited from Control)
CausesValidation	Gets or sets a value indicating whether the control causes validation to be performed on any controls that require validation when it receives focus. (Inherited from Control)
ClientRectangle	Gets the rectangle that represents the client area of the control. (Inherited from Control)
ClientSize	Gets or sets the height and width of the client area of the control. (Inherited from Control)
CompanyName	Gets the name of the company or creator of the application containing the control. (Inherited from Control)
Container	Gets the IContainer that contains the Component. (Inherited from Component)
ContainsFocus	Gets a value indicating whether the control, or one of its child controls, currently has the input focus. (Inherited from Control)
ContextMenu	Gets or sets the shortcut menu associated with the control. (Inherited from Control)
ContextMenuStrip	Gets or sets the ContextMenuStrip associated with this control. (Inherited from Control)
Controls	Gets the collection of controls contained within the control. (Inherited from Control)
Created	Gets a value indicating whether the control has been created. (Inherited from Control)
CreateParams	Gets the required creation parameters when the control handle is created.
Cursor	Gets or sets the cursor that is displayed when the mouse pointer is over the control. (Inherited from Control)
DataBindings	Gets the data bindings for the control. (Inherited from Control)
DataContext	Gets or sets the data context for the purpose of data binding. This is an ambient property. (Inherited from Control)
DefaultCursor	Gets or sets the default cursor for the control. (Inherited from TextBoxBase)
DefaultImeMode	Gets the default Input Method Editor (IME) mode supported by the control. (Inherited from Control)
DefaultMargin	Gets the space, in pixels, that is specified by default between controls. (Inherited from Control)
DefaultMaximumSize	Gets the length and height, in pixels, that is specified as the default maximum size of a control. (Inherited from Control)
DefaultMinimumSize	Gets the length and height, in pixels, that is specified as the default minimum size of a control. (Inherited from Control)
DefaultPadding	Gets the default internal spacing, in pixels, of the contents of a control. (Inherited from Control)
DefaultSize	Gets the default size of the control.
DesignMode	Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component)
DetectUrls	Gets or sets a value indicating whether or not the RichTextBox will automatically format a Uniform Resource Locator (URL) when it is typed into the control.
DeviceDpi	Gets the DPI value for the display device where the control is currently being displayed. (Inherited from Control)
DisplayRectangle	Gets the rectangle that represents the display area of the control. (Inherited from Control)
Disposing	Gets a value indicating whether the base Control class is in the process of disposing. (Inherited from Control)
Dock	Gets or sets which control borders are docked to its parent control and determines how a control is resized with its parent. (Inherited from Control)
DoubleBuffered	Gets or sets a value indicating whether control drawing is done in a buffer before the control is displayed. This property is not relevant for this class. (Inherited from TextBoxBase)
EnableAutoDragDrop	Gets or sets a value that enables drag-and-drop operations on text, pictures, and other data.
Enabled	Gets or sets a value indicating whether the control can respond to user interaction. (Inherited from Control)
Events	Gets the list of event handlers that are attached to this Component. (Inherited from Component)
Focused	Gets a value indicating whether the control has input focus. (Inherited from Control)
Font	Gets or sets the font of the text displayed by the control.
FontHeight	Gets or sets the height of the font of the control. (Inherited from Control)
ForeColor	Gets or sets the foreground color of the control.
Handle	Gets the window handle that the control is bound to. (Inherited from Control)
HasChildren	Gets a value indicating whether the control contains one or more child controls. (Inherited from Control)
Height	Gets or sets the height of the control. (Inherited from Control)
HideSelection	Gets or sets a value indicating whether the selected text in the text box control remains highlighted when the control loses focus. (Inherited from TextBoxBase)
ImeMode	Gets or sets the Input Method Editor (IME) mode of the control. (Inherited from Control)
ImeModeBase	Gets or sets the Input Method Editor (IME) mode of a control. (Inherited from TextBoxBase)
InvokeRequired	Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on. (Inherited from Control)
IsAccessible	Gets or sets a value indicating whether the control is visible to accessibility applications. (Inherited from Control)
IsAncestorSiteInDesignMode	Indicates if one of the Ancestors of this control is sited and that site in DesignMode. This property is read-only. (Inherited from Control)
IsDisposed	Gets a value indicating whether the control has been disposed of. (Inherited from Control)
IsHandleCreated	Gets a value indicating whether the control has a handle associated with it. (Inherited from Control)
IsMirrored	Gets a value indicating whether the control is mirrored. (Inherited from Control)
LanguageOption	Gets or sets a value that indicates RichTextBox settings for Input Method Editor (IME) and Asian language support.
LayoutEngine	Gets a cached instance of the control's layout engine. (Inherited from Control)
Left	Gets or sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area. (Inherited from Control)
Lines	Gets or sets the lines of text in a text box control. (Inherited from TextBoxBase)
Location	Gets or sets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container. (Inherited from Control)
Margin	Gets or sets the space between controls. (Inherited from Control)
MaximumSize	Gets or sets the size that is the upper limit that GetPreferredSize(Size) can specify. (Inherited from Control)
MaxLength	Gets or sets the maximum number of characters the user can type or paste into the rich text box control.
MinimumSize	Gets or sets the size that is the lower limit that GetPreferredSize(Size) can specify. (Inherited from Control)
Modified	Gets or sets a value that indicates that the text box control has been modified by the user since the control was created or its contents were last set. (Inherited from TextBoxBase)
Multiline	Gets or sets a value indicating whether this is a multiline RichTextBox control.
Name	Gets or sets the name of the control. (Inherited from Control)
Padding	This property is not relevant for this class. (Inherited from TextBoxBase)
Parent	Gets or sets the parent container of the control. (Inherited from Control)
PreferredHeight	Gets the preferred height for a text box. (Inherited from TextBoxBase)
PreferredSize	Gets the size of a rectangular area into which the control can fit. (Inherited from Control)
ProductName	Gets the product name of the assembly containing the control. (Inherited from Control)
ProductVersion	Gets the version of the assembly containing the control. (Inherited from Control)
ReadOnly	Gets or sets a value indicating whether text in the text box is read-only. (Inherited from TextBoxBase)
RecreatingHandle	Gets a value indicating whether the control is currently re-creating its handle. (Inherited from Control)
RedoActionName	Gets the name of the action that can be reapplied to the control when the Redo() method is called.
Region	Gets or sets the window region associated with the control. (Inherited from Control)
RenderRightToLeft	Obsolete. This property is now obsolete. (Inherited from Control)
ResizeRedraw	Gets or sets a value indicating whether the control redraws itself when resized. (Inherited from Control)
RichTextShortcutsEnabled	This property is not relevant for this class.
Right	Gets the distance, in pixels, between the right edge of the control and the left edge of its container's client area. (Inherited from Control)
RightMargin	Gets or sets the size of a single line of text within the RichTextBox control.
RightToLeft	Gets or sets a value indicating whether control's elements are aligned to support locales using right-to-left fonts. (Inherited from Control)
Rtf	Gets or sets the text of the RichTextBox control, including all rich text format (RTF) codes.
ScaleChildren	Gets a value that determines the scaling of child controls. (Inherited from Control)
ScrollBars	Gets or sets the type of scroll bars to display in the RichTextBox control.
SelectedRtf	Gets or sets the currently selected rich text format (RTF) formatted text in the control.
SelectedText	Gets or sets the selected text within the RichTextBox.
SelectionAlignment	Gets or sets the alignment to apply to the current selection or insertion point.
SelectionBackColor	Gets or sets the color of text when the text is selected in a RichTextBox control.
SelectionBullet	Gets or sets a value indicating whether the bullet style is applied to the current selection or insertion point.
SelectionCharOffset	Gets or sets whether text in the control appears on the baseline, as a superscript, or as a subscript below the baseline.
SelectionColor	Gets or sets the text color of the current text selection or insertion point.
SelectionFont	Gets or sets the font of the current text selection or insertion point.
SelectionHangingIndent	Gets or sets the distance between the left edge of the first line of text in the selected paragraph and the left edge of subsequent lines in the same paragraph.
SelectionIndent	Gets or sets the length, in pixels, of the indentation of the line where the selection starts.
SelectionLength	Gets or sets the number of characters selected in control.
SelectionProtected	Gets or sets a value indicating whether the current text selection is protected.
SelectionRightIndent	The distance (in pixels) between the right edge of the RichTextBox control and the right edge of the text that is selected or added at the current insertion point.
SelectionStart	Gets or sets the starting point of text selected in the text box. (Inherited from TextBoxBase)
SelectionTabs	Gets or sets the absolute tab stop positions in a RichTextBox control.
SelectionType	Gets the selection type within the control.
ShortcutsEnabled	Gets or sets a value indicating whether the defined shortcuts are enabled. (Inherited from TextBoxBase)
ShowFocusCues	Gets a value indicating whether the control should display focus rectangles. (Inherited from Control)
ShowKeyboardCues	Gets a value indicating whether the user interface is in the appropriate state to show or hide keyboard accelerators. (Inherited from Control)
ShowSelectionMargin	Gets or sets a value indicating whether a selection margin is displayed in the RichTextBox.
Site	Gets or sets the site of the control. (Inherited from Control)
Size	Gets or sets the height and width of the control. (Inherited from Control)
TabIndex	Gets or sets the tab order of the control within its container. (Inherited from Control)
TabStop	Gets or sets a value indicating whether the user can give the focus to this control using the TAB key. (Inherited from Control)
Tag	Gets or sets the object that contains data about the control. (Inherited from Control)
Text	Gets or sets the current text in the rich text box.
TextLength	Gets the length of text in the control.
Top	Gets or sets the distance, in pixels, between the top edge of the control and the top edge of its container's client area. (Inherited from Control)
TopLevelControl	Gets the parent control that is not parented by another Windows Forms control. Typically, this is the outermost Form that the control is contained in. (Inherited from Control)
UndoActionName	Gets the name of the action that can be undone in the control when the Undo() method is called.
UseWaitCursor	Gets or sets a value indicating whether to use the wait cursor for the current control and all child controls. (Inherited from Control)
Visible	Gets or sets a value indicating whether the control and all its child controls are displayed. (Inherited from Control)
Width	Gets or sets the width of the control. (Inherited from Control)
WindowTarget	This property is not relevant for this class. (Inherited from Control)
WordWrap	Indicates whether a multiline text box control automatically wraps words to the beginning of the next line when necessary. (Inherited from TextBoxBase)
ZoomFactor	Gets or sets the current zoom level of the RichTextBox.

Methods

AccessibilityNotifyClients(AccessibleEvents, Int32)	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control. (Inherited from Control)
AccessibilityNotifyClients(AccessibleEvents, Int32, Int32)	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control . (Inherited from Control)
AppendText(String)	Appends text to the current text of a text box. (Inherited from TextBoxBase)
BeginInvoke(Action)	Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on. (Inherited from Control)
BeginInvoke(Delegate)	Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on. (Inherited from Control)
BeginInvoke(Delegate, Object[])	Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on. (Inherited from Control)
BringToFront()	Brings the control to the front of the z-order. (Inherited from Control)
CanPaste(DataFormats+Format)	Determines whether you can paste information from the Clipboard in the specified data format.
Clear()	Clears all text from the text box control. (Inherited from TextBoxBase)
ClearUndo()	Clears information about the most recent operation from the undo buffer of the text box. (Inherited from TextBoxBase)
Contains(Control)	Retrieves a value indicating whether the specified control is a child of the control. (Inherited from Control)
ContainsNavigationKeyCode(Keys)	(Inherited from TextBoxBase)
Copy()	Copies the current selection in the text box to the Clipboard. (Inherited from TextBoxBase)
CreateAccessibilityInstance()
CreateControl()	Forces the creation of the visible control, including the creation of the handle and any visible child controls. (Inherited from Control)
CreateControlsInstance()	Creates a new instance of the control collection for the control. (Inherited from Control)
CreateGraphics()	Creates the Graphics for the control. (Inherited from Control)
CreateHandle()	Creates a handle for the control. (Inherited from TextBoxBase)
CreateObjRef(Type)	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject)
CreateRichEditOleCallback()	Creates an IRichEditOleCallback-compatible object for handling rich-edit callback operations.
Cut()	Moves the current selection in the text box to the Clipboard. (Inherited from TextBoxBase)
DefWndProc(Message)	Sends the specified message to the default window procedure. (Inherited from Control)
DeselectAll()	Specifies that the value of the SelectionLength property is zero so that no characters are selected in the control. (Inherited from TextBoxBase)
DestroyHandle()	Destroys the handle associated with the control. (Inherited from Control)
Dispose()	Releases all resources used by the Component. (Inherited from Component)
Dispose(Boolean)	Releases the unmanaged resources used by the Control and its child controls and optionally releases the managed resources. (Inherited from Control)
DoDragDrop(Object, DragDropEffects)	Begins a drag-and-drop operation. (Inherited from Control)
DoDragDrop(Object, DragDropEffects, Bitmap, Point, Boolean)	Begins a drag operation. (Inherited from Control)
DrawToBitmap(Bitmap, Rectangle)	This method is not relevant for this class.
EndInvoke(IAsyncResult)	Retrieves the return value of the asynchronous operation represented by the IAsyncResult passed. (Inherited from Control)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
Find(Char[])	Searches the text of a RichTextBox control for the first instance of a character from a list of characters.
Find(Char[], Int32)	Searches the text of a RichTextBox control, at a specific starting point, for the first instance of a character from a list of characters.
Find(Char[], Int32, Int32)	Searches a range of text in a RichTextBox control for the first instance of a character from a list of characters.
Find(String)	Searches the text in a RichTextBox control for a string.
Find(String, Int32, Int32, RichTextBoxFinds)	Searches the text in a RichTextBox control for a string within a range of text within the control and with specific options applied to the search.
Find(String, Int32, RichTextBoxFinds)	Searches the text in a RichTextBox control for a string at a specific location within the control and with specific options applied to the search.
Find(String, RichTextBoxFinds)	Searches the text in a RichTextBox control for a string with specific options applied to the search.
FindForm()	Retrieves the form that the control is on. (Inherited from Control)
Focus()	Sets input focus to the control. (Inherited from Control)
GetAccessibilityObjectById(Int32)	Retrieves the specified AccessibleObject. (Inherited from Control)
GetAutoSizeMode()	Retrieves a value indicating how a control will behave when its AutoSize property is enabled. (Inherited from Control)
GetCharFromPosition(Point)	Retrieves the character that is closest to the specified location within the control. (Inherited from TextBoxBase)
GetCharIndexFromPosition(Point)	Retrieves the index of the character nearest to the specified location.
GetChildAtPoint(Point)	Retrieves the child control that is located at the specified coordinates. (Inherited from Control)
GetChildAtPoint(Point, GetChildAtPointSkip)	Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type. (Inherited from Control)
GetContainerControl()	Returns the next ContainerControl up the control's chain of parent controls. (Inherited from Control)
GetFirstCharIndexFromLine(Int32)	Retrieves the index of the first character of a given line. (Inherited from TextBoxBase)
GetFirstCharIndexOfCurrentLine()	Retrieves the index of the first character of the current line. (Inherited from TextBoxBase)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetLifetimeService()	Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject)
GetLineFromCharIndex(Int32)	Retrieves the line number from the specified character position within the text of the RichTextBox control.
GetNextControl(Control, Boolean)	Retrieves the next control forward or back in the tab order of child controls. (Inherited from Control)
GetPositionFromCharIndex(Int32)	Retrieves the location within the control at the specified character index.
GetPreferredSize(Size)	Retrieves the size of a rectangular area into which a control can be fitted. (Inherited from Control)
GetScaledBounds(Rectangle, SizeF, BoundsSpecified)	Retrieves the bounds within which the control is scaled. (Inherited from Control)
GetService(Type)	Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component)
GetStyle(ControlStyles)	Retrieves the value of the specified control style bit for the control. (Inherited from Control)
GetTopLevel()	Determines if the control is a top-level control. (Inherited from Control)
GetType()	Gets the Type of the current instance. (Inherited from Object)
Hide()	Conceals the control from the user. (Inherited from Control)
InitializeLifetimeService()	Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject)
InitLayout()	Called after the control has been added to another container. (Inherited from Control)
Invalidate()	Invalidates the entire surface of the control and causes the control to be redrawn. (Inherited from Control)
Invalidate(Boolean)	Invalidates a specific region of the control and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. (Inherited from Control)
Invalidate(Rectangle)	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. (Inherited from Control)
Invalidate(Rectangle, Boolean)	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. (Inherited from Control)
Invalidate(Region)	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. (Inherited from Control)
Invalidate(Region, Boolean)	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. (Inherited from Control)
Invoke(Action)	Executes the specified delegate on the thread that owns the control's underlying window handle. (Inherited from Control)
Invoke(Delegate)	Executes the specified delegate on the thread that owns the control's underlying window handle. (Inherited from Control)
Invoke(Delegate, Object[])	Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments. (Inherited from Control)
Invoke<T>(Func<T>)	Executes the specified delegate on the thread that owns the control's underlying window handle. (Inherited from Control)
InvokeAsync(Action, CancellationToken)	Invokes the specified synchronous callback asynchronously on the thread that owns the control's handle. (Inherited from Control)
InvokeAsync(Func<CancellationToken,ValueTask>, CancellationToken)	Executes the specified asynchronous callback on the thread that owns the control's handle asynchronously. (Inherited from Control)
InvokeAsync<T>(Func<CancellationToken,ValueTask<T>>, CancellationToken)	Executes the specified asynchronous callback on the thread that owns the control's handle. (Inherited from Control)
InvokeAsync<T>(Func<T>, CancellationToken)	Invokes the specified synchronous callback asynchronously on the thread that owns the control's handle. (Inherited from Control)
InvokeGotFocus(Control, EventArgs)	Raises the GotFocus event for the specified control. (Inherited from Control)
InvokeLostFocus(Control, EventArgs)	Raises the LostFocus event for the specified control. (Inherited from Control)
InvokeOnClick(Control, EventArgs)	Raises the Click event for the specified control. (Inherited from Control)
InvokePaint(Control, PaintEventArgs)	Raises the Paint event for the specified control. (Inherited from Control)
InvokePaintBackground(Control, PaintEventArgs)	Raises the PaintBackground event for the specified control. (Inherited from Control)
IsInputChar(Char)	Determines if a character is an input character that the control recognizes. (Inherited from Control)
IsInputKey(Keys)	Determines whether the specified key is an input key or a special key that requires preprocessing. (Inherited from TextBoxBase)
LoadFile(Stream, RichTextBoxStreamType)	Loads the contents of an existing data stream into the RichTextBox control.
LoadFile(String)	Loads a rich text format (RTF) or standard ASCII text file into the RichTextBox control.
LoadFile(String, RichTextBoxStreamType)	Loads a specific type of file into the RichTextBox control.
LogicalToDeviceUnits(Int32)	Converts a Logical DPI value to its equivalent DeviceUnit DPI value. (Inherited from Control)
LogicalToDeviceUnits(Size)	Transforms a size from logical to device units by scaling it for the current DPI and rounding down to the nearest integer value for width and height. (Inherited from Control)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
MemberwiseClone(Boolean)	Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject)
NotifyInvalidate(Rectangle)	Raises the Invalidated event with a specified region of the control to invalidate. (Inherited from Control)
OnAcceptsTabChanged(EventArgs)	Raises the AcceptsTabChanged event. (Inherited from TextBoxBase)
OnAutoSizeChanged(EventArgs)	Raises the AutoSizeChanged event. (Inherited from TextBoxBase)
OnBackColorChanged(EventArgs)	Raises the BackColorChanged event.
OnBackgroundImageChanged(EventArgs)	Raises the BackgroundImageChanged event. (Inherited from Control)
OnBackgroundImageLayoutChanged(EventArgs)	Raises the BackgroundImageLayoutChanged event. (Inherited from Control)
OnBindingContextChanged(EventArgs)	Raises the BindingContextChanged event. (Inherited from Control)
OnBorderStyleChanged(EventArgs)	Raises the BorderStyleChanged event. (Inherited from TextBoxBase)
OnCausesValidationChanged(EventArgs)	Raises the CausesValidationChanged event. (Inherited from Control)
OnChangeUICues(UICuesEventArgs)	Raises the ChangeUICues event. (Inherited from Control)
OnClick(EventArgs)	Raises the Click event. (Inherited from Control)
OnClientSizeChanged(EventArgs)	Raises the ClientSizeChanged event. (Inherited from Control)
OnContentsResized(ContentsResizedEventArgs)	Raises the ContentsResized event.
OnContextMenuChanged(EventArgs)	Raises the ContextMenuChanged event. (Inherited from Control)
OnContextMenuStripChanged(EventArgs)	Raises the ContextMenuStripChanged event. (Inherited from Control)
OnControlAdded(ControlEventArgs)	Raises the ControlAdded event. (Inherited from Control)
OnControlRemoved(ControlEventArgs)	Raises the ControlRemoved event. (Inherited from Control)
OnCreateControl()	Raises the CreateControl() method. (Inherited from Control)
OnCursorChanged(EventArgs)	Raises the CursorChanged event. (Inherited from Control)
OnDataContextChanged(EventArgs)	(Inherited from Control)
OnDockChanged(EventArgs)	Raises the DockChanged event. (Inherited from Control)
OnDoubleClick(EventArgs)	Raises the DoubleClick event. (Inherited from Control)
OnDpiChangedAfterParent(EventArgs)	Raises the DpiChangedAfterParent event. (Inherited from Control)
OnDpiChangedBeforeParent(EventArgs)	Raises the DpiChangedBeforeParent event. (Inherited from Control)
OnDragDrop(DragEventArgs)	Raises the DragDrop event. (Inherited from Control)
OnDragEnter(DragEventArgs)	Raises the DragEnter event. (Inherited from Control)
OnDragLeave(EventArgs)	Raises the DragLeave event. (Inherited from Control)
OnDragOver(DragEventArgs)	Raises the DragOver event. (Inherited from Control)
OnEnabledChanged(EventArgs)	Raises the EnabledChanged event. (Inherited from Control)
OnEnter(EventArgs)	Raises the Enter event. (Inherited from Control)
OnFontChanged(EventArgs)	Raises the FontChanged event. (Inherited from TextBoxBase)
OnForeColorChanged(EventArgs)	Raises the ForeColorChanged event. (Inherited from Control)
OnGiveFeedback(GiveFeedbackEventArgs)	Raises the GiveFeedback event. (Inherited from Control)
OnGotFocus(EventArgs)
OnHandleCreated(EventArgs)	Raises the HandleCreated event.
OnHandleDestroyed(EventArgs)	Raises the HandleDestroyed event.
OnHelpRequested(HelpEventArgs)	Raises the HelpRequested event. (Inherited from Control)
OnHideSelectionChanged(EventArgs)	Raise the HideSelectionChanged event. (Inherited from TextBoxBase)
OnHScroll(EventArgs)	Raises the HScroll event.
OnImeChange(EventArgs)	Raises the ImeChange event.
OnImeModeChanged(EventArgs)	Raises the ImeModeChanged event. (Inherited from Control)
OnInvalidated(InvalidateEventArgs)	Raises the Invalidated event. (Inherited from Control)
OnKeyDown(KeyEventArgs)	Raises the KeyDown event. (Inherited from Control)
OnKeyPress(KeyPressEventArgs)	Raises the KeyPress event. (Inherited from Control)
OnKeyUp(KeyEventArgs)	Raises the KeyUp event. (Inherited from Control)
OnLayout(LayoutEventArgs)	Raises the Layout event. (Inherited from Control)
OnLeave(EventArgs)	Raises the Leave event. (Inherited from Control)
OnLinkClicked(LinkClickedEventArgs)	Raises the LinkClicked event.
OnLocationChanged(EventArgs)	Raises the LocationChanged event. (Inherited from Control)
OnLostFocus(EventArgs)	Raises the LostFocus event. (Inherited from Control)
OnMarginChanged(EventArgs)	Raises the MarginChanged event. (Inherited from Control)
OnModifiedChanged(EventArgs)	Raises the ModifiedChanged event. (Inherited from TextBoxBase)
OnMouseCaptureChanged(EventArgs)	Raises the MouseCaptureChanged event. (Inherited from Control)
OnMouseClick(MouseEventArgs)	Raises the MouseClick event. (Inherited from Control)
OnMouseDoubleClick(MouseEventArgs)	Raises the MouseDoubleClick event. (Inherited from Control)
OnMouseDown(MouseEventArgs)	Raises the MouseDown event. (Inherited from Control)
OnMouseEnter(EventArgs)	Raises the MouseEnter event. (Inherited from Control)
OnMouseHover(EventArgs)	Raises the MouseHover event. (Inherited from Control)
OnMouseLeave(EventArgs)	Raises the MouseLeave event. (Inherited from Control)
OnMouseMove(MouseEventArgs)	Raises the MouseMove event. (Inherited from Control)
OnMouseUp(MouseEventArgs)	Raises the MouseUp event. (Inherited from TextBoxBase)
OnMouseWheel(MouseEventArgs)	Raises the MouseWheel event. (Inherited from Control)
OnMove(EventArgs)	Raises the Move event. (Inherited from Control)
OnMultilineChanged(EventArgs)	Raises the MultilineChanged event. (Inherited from TextBoxBase)
OnNotifyMessage(Message)	Notifies the control of Windows messages. (Inherited from Control)
OnPaddingChanged(EventArgs)	This method is not relevant for this class. (Inherited from TextBoxBase)
OnPaint(PaintEventArgs)	Raises the Paint event. (Inherited from Control)
OnPaintBackground(PaintEventArgs)	Paints the background of the control. (Inherited from Control)
OnParentBackColorChanged(EventArgs)	Raises the BackColorChanged event when the BackColor property value of the control's container changes. (Inherited from Control)
OnParentBackgroundImageChanged(EventArgs)	Raises the BackgroundImageChanged event when the BackgroundImage property value of the control's container changes. (Inherited from Control)
OnParentBindingContextChanged(EventArgs)	Raises the BindingContextChanged event when the BindingContext property value of the control's container changes. (Inherited from Control)
OnParentChanged(EventArgs)	Raises the ParentChanged event. (Inherited from Control)
OnParentCursorChanged(EventArgs)	Raises the CursorChanged event. (Inherited from Control)
OnParentDataContextChanged(EventArgs)	(Inherited from Control)
OnParentEnabledChanged(EventArgs)	Raises the EnabledChanged event when the Enabled property value of the control's container changes. (Inherited from Control)
OnParentFontChanged(EventArgs)	Raises the FontChanged event when the Font property value of the control's container changes. (Inherited from Control)
OnParentForeColorChanged(EventArgs)	Raises the ForeColorChanged event when the ForeColor property value of the control's container changes. (Inherited from Control)
OnParentRightToLeftChanged(EventArgs)	Raises the RightToLeftChanged event when the RightToLeft property value of the control's container changes. (Inherited from Control)
OnParentVisibleChanged(EventArgs)	Raises the VisibleChanged event when the Visible property value of the control's container changes. (Inherited from Control)
OnPreviewKeyDown(PreviewKeyDownEventArgs)	Raises the PreviewKeyDown event. (Inherited from Control)
OnPrint(PaintEventArgs)	Raises the Paint event. (Inherited from Control)
OnProtected(EventArgs)	Raises the Protected event.
OnQueryContinueDrag(QueryContinueDragEventArgs)	Raises the QueryContinueDrag event. (Inherited from Control)
OnReadOnlyChanged(EventArgs)	Raises the ReadOnlyChanged event. (Inherited from TextBoxBase)
OnRegionChanged(EventArgs)	Raises the RegionChanged event. (Inherited from Control)
OnResize(EventArgs)	Raises the Resize event. (Inherited from Control)
OnRightToLeftChanged(EventArgs)	Raises the RightToLeftChanged event.
OnSelectionChanged(EventArgs)	Raises the SelectionChanged event.
OnSizeChanged(EventArgs)	Raises the SizeChanged event. (Inherited from Control)
OnStyleChanged(EventArgs)	Raises the StyleChanged event. (Inherited from Control)
OnSystemColorsChanged(EventArgs)	Raises the SystemColorsChanged event. (Inherited from Control)
OnTabIndexChanged(EventArgs)	Raises the TabIndexChanged event. (Inherited from Control)
OnTabStopChanged(EventArgs)	Raises the TabStopChanged event. (Inherited from Control)
OnTextChanged(EventArgs)	Raises the TextChanged event. (Inherited from TextBoxBase)
OnValidated(EventArgs)	Raises the Validated event. (Inherited from Control)
OnValidating(CancelEventArgs)	Raises the Validating event. (Inherited from Control)
OnVisibleChanged(EventArgs)	Raises the VisibleChanged event. (Inherited from Control)
OnVScroll(EventArgs)	Raises the VScroll event.
Paste()	Replaces the current selection in the text box with the contents of the Clipboard. (Inherited from TextBoxBase)
Paste(DataFormats+Format)	Pastes the contents of the Clipboard in the specified Clipboard format.
PerformLayout()	Forces the control to apply layout logic to all its child controls. (Inherited from Control)
PerformLayout(Control, String)	Forces the control to apply layout logic to all its child controls. (Inherited from Control)
PointToClient(Point)	Computes the location of the specified screen point into client coordinates. (Inherited from Control)
PointToScreen(Point)	Computes the location of the specified client point into screen coordinates. (Inherited from Control)
PreProcessControlMessage(Message)	Preprocesses keyboard or input messages within the message loop before they are dispatched. (Inherited from Control)
PreProcessMessage(Message)	Preprocesses keyboard or input messages within the message loop before they are dispatched. (Inherited from Control)
ProcessCmdKey(Message, Keys)	Processes a command key.
ProcessDialogChar(Char)	Processes a dialog character. (Inherited from Control)
ProcessDialogKey(Keys)	Processes a dialog key. (Inherited from TextBoxBase)
ProcessKeyEventArgs(Message)	Processes a key message and generates the appropriate control events. (Inherited from Control)
ProcessKeyMessage(Message)	Processes a keyboard message. (Inherited from Control)
ProcessKeyPreview(Message)	Previews a keyboard message. (Inherited from Control)
ProcessMnemonic(Char)	Processes a mnemonic character. (Inherited from Control)
RaiseDragEvent(Object, DragEventArgs)	Raises the appropriate drag event. (Inherited from Control)
RaiseKeyEvent(Object, KeyEventArgs)	Raises the appropriate key event. (Inherited from Control)
RaiseMouseEvent(Object, MouseEventArgs)	Raises the appropriate mouse event. (Inherited from Control)
RaisePaintEvent(Object, PaintEventArgs)	Raises the appropriate paint event. (Inherited from Control)
RecreateHandle()	Forces the re-creation of the handle for the control. (Inherited from Control)
RectangleToClient(Rectangle)	Computes the size and location of the specified screen rectangle in client coordinates. (Inherited from Control)
RectangleToScreen(Rectangle)	Computes the size and location of the specified client rectangle in screen coordinates. (Inherited from Control)
Redo()	Reapplies the last operation that was undone in the control.
Refresh()	Forces the control to invalidate its client area and immediately redraw itself and any child controls. (Inherited from Control)
RescaleConstantsForDpi(Int32, Int32)	Provides constants for rescaling the control when a DPI change occurs. (Inherited from Control)
ResetBackColor()	Resets the BackColor property to its default value. (Inherited from Control)
ResetBindings()	Causes a control bound to the BindingSource to reread all the items in the list and refresh their displayed values. (Inherited from Control)
ResetCursor()	Resets the Cursor property to its default value. (Inherited from Control)
ResetFont()	Resets the Font property to its default value. (Inherited from Control)
ResetForeColor()	Resets the ForeColor property to its default value. (Inherited from Control)
ResetImeMode()	Resets the ImeMode property to its default value. (Inherited from Control)
ResetMouseEventArgs()	Resets the control to handle the MouseLeave event. (Inherited from Control)
ResetRightToLeft()	Resets the RightToLeft property to its default value. (Inherited from Control)
ResetText()	Resets the Text property to its default value (Empty). (Inherited from Control)
ResumeLayout()	Resumes usual layout logic. (Inherited from Control)
ResumeLayout(Boolean)	Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests. (Inherited from Control)
RtlTranslateAlignment(ContentAlignment)	Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text. (Inherited from Control)
RtlTranslateAlignment(HorizontalAlignment)	Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text. (Inherited from Control)
RtlTranslateAlignment(LeftRightAlignment)	Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text. (Inherited from Control)
RtlTranslateContent(ContentAlignment)	Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text. (Inherited from Control)
RtlTranslateHorizontal(HorizontalAlignment)	Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text. (Inherited from Control)
RtlTranslateLeftRight(LeftRightAlignment)	Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text. (Inherited from Control)
SaveFile(Stream, RichTextBoxStreamType)	Saves the contents of a RichTextBox control to an open data stream.
SaveFile(String)	Saves the contents of the RichTextBox to a rich text format (RTF) file.
SaveFile(String, RichTextBoxStreamType)	Saves the contents of the RichTextBox to a specific type of file.
Scale(Single)	Obsolete. Scales the control and any child controls. (Inherited from Control)
Scale(Single, Single)	Obsolete. Scales the entire control and any child controls. (Inherited from Control)
Scale(SizeF)	Scales the control and all child controls by the specified scaling factor. (Inherited from Control)
ScaleBitmapLogicalToDevice(Bitmap)	Scales a logical bitmap value to it's equivalent device unit value when a DPI change occurs. (Inherited from Control)
ScaleControl(SizeF, BoundsSpecified)	Scales a control's location, size, padding and margin. (Inherited from Control)
ScaleCore(Single, Single)	This method is not relevant for this class. (Inherited from Control)
ScrollToCaret()	Scrolls the contents of the control to the current caret position. (Inherited from TextBoxBase)
Select()	Activates the control. (Inherited from Control)
Select(Boolean, Boolean)	Activates a child control. Optionally specifies the direction in the tab order to select the control from. (Inherited from Control)
Select(Int32, Int32)	Selects a range of text in the text box. (Inherited from TextBoxBase)
SelectAll()	Selects all text in the text box. (Inherited from TextBoxBase)
SelectNextControl(Control, Boolean, Boolean, Boolean, Boolean)	Activates the next control. (Inherited from Control)
SendToBack()	Sends the control to the back of the z-order. (Inherited from Control)
SetAutoSizeMode(AutoSizeMode)	Sets a value indicating how a control will behave when its AutoSize property is enabled. (Inherited from Control)
SetBounds(Int32, Int32, Int32, Int32)	Sets the bounds of the control to the specified location and size. (Inherited from Control)
SetBounds(Int32, Int32, Int32, Int32, BoundsSpecified)	Sets the specified bounds of the control to the specified location and size. (Inherited from Control)
SetBoundsCore(Int32, Int32, Int32, Int32, BoundsSpecified)	Sets the specified bounds of the TextBoxBase control. (Inherited from TextBoxBase)
SetClientSizeCore(Int32, Int32)	Sets the size of the client area of the control. (Inherited from Control)
SetStyle(ControlStyles, Boolean)	Sets a specified ControlStyles flag to either true or false. (Inherited from Control)
SetTopLevel(Boolean)	Sets the control as the top-level control. (Inherited from Control)
SetVisibleCore(Boolean)	Sets the control to the specified visible state. (Inherited from Control)
Show()	Displays the control to the user. (Inherited from Control)
SizeFromClientSize(Size)	Determines the size of the entire control from the height and width of its client area. (Inherited from Control)
SuspendLayout()	Temporarily suspends the layout logic for the control. (Inherited from Control)
ToString()	Returns a string that represents the TextBoxBase control. (Inherited from TextBoxBase)
Undo()	Undoes the last edit operation in the text box. (Inherited from TextBoxBase)
Update()	Causes the control to redraw the invalidated regions within its client area. (Inherited from Control)
UpdateBounds()	Updates the bounds of the control with the current size and location. (Inherited from Control)
UpdateBounds(Int32, Int32, Int32, Int32)	Updates the bounds of the control with the specified size and location. (Inherited from Control)
UpdateBounds(Int32, Int32, Int32, Int32, Int32, Int32)	Updates the bounds of the control with the specified size, location, and client size. (Inherited from Control)
UpdateStyles()	Forces the assigned styles to be reapplied to the control. (Inherited from Control)
UpdateZOrder()	Updates the control in its parent's z-order. (Inherited from Control)
WndProc(Message)	Processes Windows messages.

Events

AcceptsTabChanged	Occurs when the value of the AcceptsTab property has changed. (Inherited from TextBoxBase)
AutoSizeChanged	This event is not relevant for this class. (Inherited from TextBoxBase)
BackColorChanged	Occurs when the value of the BackColor property changes. (Inherited from Control)
BackgroundImageChanged	Occurs when the value of the BackgroundImage property changes.
BackgroundImageLayoutChanged	Occurs when the value of the BackgroundImageLayout property changes.
BindingContextChanged	Occurs when the value of the BindingContext property changes. (Inherited from Control)
BorderStyleChanged	Occurs when the value of the BorderStyle property has changed. (Inherited from TextBoxBase)
CausesValidationChanged	Occurs when the value of the CausesValidation property changes. (Inherited from Control)
ChangeUICues	Occurs when the focus or keyboard user interface (UI) cues change. (Inherited from Control)
Click	Occurs when the text box is clicked. (Inherited from TextBoxBase)
ClientSizeChanged	Occurs when the value of the ClientSize property changes. (Inherited from Control)
ContentsResized	Occurs when contents within the control are resized.
ContextMenuChanged	Occurs when the value of the ContextMenu property changes. (Inherited from Control)
ContextMenuStripChanged	Occurs when the value of the ContextMenuStrip property changes. (Inherited from Control)
ControlAdded	Occurs when a new control is added to the Control.ControlCollection. (Inherited from Control)
ControlRemoved	Occurs when a control is removed from the Control.ControlCollection. (Inherited from Control)
CursorChanged	Occurs when the value of the Cursor property changes. (Inherited from Control)
DataContextChanged	Occurs when the value of the DataContext property changes. (Inherited from Control)
Disposed	Occurs when the component is disposed by a call to the Dispose() method. (Inherited from Component)
DockChanged	Occurs when the value of the Dock property changes. (Inherited from Control)
DoubleClick	Occurs when the control is double-clicked. (Inherited from Control)
DpiChangedAfterParent	Occurs when the DPI setting for a control is changed programmatically after the DPI of its parent control or form has changed. (Inherited from Control)
DpiChangedBeforeParent	Occurs when the DPI setting for a control is changed programmatically before a DPI change event for its parent control or form has occurred. (Inherited from Control)
DragDrop	Occurs when the user completes a drag-and-drop.
DragEnter	Occurs when an object is dragged into the control's bounds.
DragLeave	Occurs when an object is dragged out of the control's bounds.
DragOver	Occurs when an object is dragged over the control's bounds.
EnabledChanged	Occurs when the Enabled property value has changed. (Inherited from Control)
Enter	Occurs when the control is entered. (Inherited from Control)
FontChanged	Occurs when the Font property value changes. (Inherited from Control)
ForeColorChanged	Occurs when the ForeColor property value changes. (Inherited from Control)
GiveFeedback	Occurs during a drag operation.
GotFocus	Occurs when the control receives focus. (Inherited from Control)
HandleCreated	Occurs when a handle is created for the control. (Inherited from Control)
HandleDestroyed	Occurs when the control's handle is in the process of being destroyed. (Inherited from Control)
HelpRequested	Occurs when the user requests help for a control. (Inherited from Control)
HideSelectionChanged	Occurs when the value of the HideSelection property has changed. (Inherited from TextBoxBase)
HScroll	Occurs when the user clicks the horizontal scroll bar of the control.
ImeChange	Occurs when the user switches input methods on an Asian version of the Windows operating system.
ImeModeChanged	Occurs when the ImeMode property has changed. (Inherited from Control)
Invalidated	Occurs when a control's display requires redrawing. (Inherited from Control)
KeyDown	Occurs when a key is pressed while the control has focus. (Inherited from Control)
KeyPress	Occurs when a character, space, or backspace key is pressed while the control has focus. (Inherited from Control)
KeyUp	Occurs when a key is released while the control has focus. (Inherited from Control)
Layout	Occurs when a control should reposition its child controls. (Inherited from Control)
Leave	Occurs when the input focus leaves the control. (Inherited from Control)
LinkClicked	Occurs when the user clicks on a link within the text of the control.
LocationChanged	Occurs when the Location property value has changed. (Inherited from Control)
LostFocus	Occurs when the control loses focus. (Inherited from Control)
MarginChanged	Occurs when the control's margin changes. (Inherited from Control)
ModifiedChanged	Occurs when the value of the Modified property has changed. (Inherited from TextBoxBase)
MouseCaptureChanged	Occurs when the control loses mouse capture. (Inherited from Control)
MouseClick	Occurs when the control is clicked by the mouse. (Inherited from TextBoxBase)
MouseDoubleClick	Occurs when the control is double clicked by the mouse. (Inherited from Control)
MouseDown	Occurs when the mouse pointer is over the control and a mouse button is pressed. (Inherited from Control)
MouseEnter	Occurs when the mouse pointer enters the control. (Inherited from Control)
MouseHover	Occurs when the mouse pointer rests on the control. (Inherited from Control)
MouseLeave	Occurs when the mouse pointer leaves the control. (Inherited from Control)
MouseMove	Occurs when the mouse pointer is moved over the control. (Inherited from Control)
MouseUp	Occurs when the mouse pointer is over the control and a mouse button is released. (Inherited from Control)
MouseWheel	Occurs when the mouse wheel moves while the control has focus. (Inherited from Control)
Move	Occurs when the control is moved. (Inherited from Control)
MultilineChanged	Occurs when the value of the Multiline property has changed. (Inherited from TextBoxBase)
PaddingChanged	This event is not relevant for this class. (Inherited from TextBoxBase)
Paint	Occurs when the control is redrawn. This event is not relevant for this class. (Inherited from TextBoxBase)
ParentChanged	Occurs when the Parent property value changes. (Inherited from Control)
PreviewKeyDown	Occurs before the KeyDown event when a key is pressed while focus is on this control. (Inherited from Control)
Protected	Occurs when the user attempts to modify protected text in the control.
QueryAccessibilityHelp	Occurs when AccessibleObject is providing help to accessibility applications. (Inherited from Control)
QueryContinueDrag	This event is not relevant to this class.
ReadOnlyChanged	Occurs when the value of the ReadOnly property has changed. (Inherited from TextBoxBase)
RegionChanged	Occurs when the value of the Region property changes. (Inherited from Control)
Resize	Occurs when the control is resized. (Inherited from Control)
RightToLeftChanged	Occurs when the RightToLeft property value changes. (Inherited from Control)
SelectionChanged	Occurs when the selection of text within the control has changed.
SizeChanged	Occurs when the Size property value changes. (Inherited from Control)
StyleChanged	Occurs when the control style changes. (Inherited from Control)
SystemColorsChanged	Occurs when the system colors change. (Inherited from Control)
TabIndexChanged	Occurs when the TabIndex property value changes. (Inherited from Control)
TabStopChanged	Occurs when the TabStop property value changes. (Inherited from Control)
TextChanged	Occurs when the Text property value changes. (Inherited from Control)
Validated	Occurs when the control is finished validating. (Inherited from Control)
Validating	Occurs when the control is validating. (Inherited from Control)
VisibleChanged	Occurs when the Visible property value changes. (Inherited from Control)
VScroll	Occurs when the user clicks the vertical scroll bars of the control.

Explicit Interface Implementations

IDropTarget.OnDragDrop(DragEventArgs)	Raises the DragDrop event. (Inherited from Control)
IDropTarget.OnDragEnter(DragEventArgs)	Raises the DragEnter event. (Inherited from Control)
IDropTarget.OnDragLeave(EventArgs)	Raises the DragLeave event. (Inherited from Control)
IDropTarget.OnDragOver(DragEventArgs)	Raises the DragOver event. (Inherited from Control)

See also

• TextBoxBase
• TextBox