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BaseValidator Class

Definition

Serves as the abstract base class for validation controls.

public ref class BaseValidator abstract : System::Web::UI::WebControls::Label, System::Web::UI::IValidator
public abstract class BaseValidator : System.Web.UI.WebControls.Label, System.Web.UI.IValidator
type BaseValidator = class
    inherit Label
    interface IValidator
Public MustInherit Class BaseValidator
Inherits Label
Implements IValidator
Inheritance
BaseValidator
Derived
Implements

Examples

The following code example demonstrates how to use multiple validation controls to verify that the user enters a valid value in a TextBox control.

Important

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
 
  void Button_Click(Object sender, EventArgs e) 
  {
    if (Page.IsValid)
    {
      MessageLabel.Text = "Page submitted successfully.";
    }
    else
    {
      MessageLabel.Text = "There is an error on the page.";
    }
  }
 
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>Validator Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>Validator Example</h3>
     
      Enter a number from 1 to 10.
      <asp:textbox id="NumberTextBox" 
        runat="server"/>

      <asp:rangevalidator id="NumberCompareValidator" 
        controltovalidate="NumberTextBox"
        enableclientscript="False"  
        type="Integer"
        display="Dynamic" 
        errormessage="Please enter a value from 1 to 10."
        maximumvalue="10"
        minimumvalue="1"  
        text="*"
        runat="server"/>

      <asp:requiredfieldvalidator id="TextBoxRequiredValidator" 
        controltovalidate="NumberTextBox"
        enableclientscript="False"
        display="Dynamic" 
        errormessage="Please enter a value."
        text="*"
        runat="server"/>

      <br /><br />

      <asp:button id="SubmitButton"
        text="Submit"
        onclick="Button_Click"
        runat="server"/>
 
      <br /><br />
       
      <asp:label id="MessageLabel" 
        runat="server"/>

      <br /><br />

      <asp:validationsummary
        id="ErrorSummary"
        runat="server"/>
 
    </form>
  </body>
</html>
<%@ Page Language="VB" AutoEventWireup="False" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
 
  Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs) Handles SubmitButton.Click
 
    If Page.IsValid Then
    
      MessageLabel.Text = "Page submitted successfully."
    
    Else
    
      MessageLabel.Text = "There is an error on the page."
    
    End If
    
  End Sub
 
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>Validator Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>Validator Example</h3>
     
      Enter a number from 1 to 10.
      <asp:textbox id="NumberTextBox" 
        runat="server"/>

      <asp:rangevalidator id="NumberCompareValidator" 
        controltovalidate="NumberTextBox"
        enableclientscript="False"  
        type="Integer"
        display="Dynamic" 
        errormessage="Please enter a value from 1 to 10."
        maximumvalue="10"
        minimumvalue="1"  
        text="*"
        runat="server"/>

      <asp:requiredfieldvalidator id="TextBoxRequiredValidator" 
        controltovalidate="NumberTextBox"
        enableclientscript="False"
        display="Dynamic" 
        errormessage="Please enter a value."
        text="*"
        runat="server"/>

      <br /><br />

      <asp:button id="SubmitButton"
        text="Submit"
        runat="server"/>
 
      <br /><br />
       
      <asp:label id="MessageLabel" 
        runat="server"/>

      <br /><br />

      <asp:validationsummary
        id="ErrorSummary"
        runat="server"/>
 
    </form>
  </body>
</html>

Remarks

The BaseValidator class provides the core implementation for all validation controls. Validation controls are used to validate user input in an associated input control. When the user enters a value that fails validation, the validation control displays an error message. Because a validation control is separated from the input control, you can position the error message anywhere on the page relative to the input control. ASP.NET provides several validation controls that perform specific types of validation. The following table describes these controls.

Validation control Description
CompareValidator Validates a value against the value entered into another input control, against a constant value, or against a proper data type by setting the CompareValidator.Operator property to ValidationCompareOperator.DataTypeCheck.
CustomValidator Validates a value using a user-provided custom validation routine.
RangeValidator Validates whether a value is within a range of values.
RegularExpressionValidator Validates a value using a regular expression.
RequiredFieldValidator Validates that a value was entered in a required field.

Validation controls always validate the associated input control on the server. Validation controls also have complete client-side implementation that allows script-enabled browsers (such as Microsoft Internet Explorer version 4.0 and later) to perform validation on the client. Client-side validation enhances the validation process by checking user input before it is sent to the server. This allows errors to be detected on the client before the form is submitted, avoiding the round trip of information necessary for server-side validation.

Multiple validation controls can be used with an individual input control to validate different criteria. For example, you can apply multiple validation controls on a TextBox control. You can use a RangeValidator control to ensure that the value entered in the TextBox control is within a set range, and a RequiredFieldValidator control to ensure that the user enters a value.

ASP.NET provides many controls that have the ability to post back to the server. When one of these controls has its CausesValidation property set to true, validation is performed when the control posts back to the server. The following controls have the ability to post back to the server:

Note

Some of these controls post back to the server only when the AutoPostBack property is set to true.

These controls each have a ValidationGroup property that, when set, validates only the validation controls within the specified group when the control triggers a post back to the server. To group validation controls, set the ValidationGroup property of each validation control to the same value.

To associate an input control with a validation control, use the ControlToValidate property. To specify the text to display in a validation control when validation fails, use the Text property. You can also display a summary of all controls that fail validation in the page by using a ValidationSummary control. To specify the text to display in a ValidationSummary control, use the ErrorMessage property.

Note

If you set the ErrorMessage property without setting the Text property, the value of the ErrorMessage property is also displayed in the validation control.

When using validator controls, you should always check the results of server-side validation before performing any processing. After a postback but before your event methods are called, the page calls the validator controls and aggregates their results into the Page.IsValid property. (You can also call the validator controls explicitly using the Validate method.) In your own code, you should check that the Page.IsValid property returns true before processing input. Even though script-enabled browsers might prevent a postback from occurring on the client if a validation check has failed, you should always also check Page.IsValid in server code before processing validated data.

You can also manually perform validation. To validate all validation controls on the page, use the Page.Validate method. Individual validation controls can be validated by using the Validate method of the control.

Note

If you use the Page.IsValid property in a Page_Load method, you must first explicitly call the Page.Validate method. Because validation occurs after the Control.Load event for the page, but before the event handler for the Click or Command events, the Page.IsValid property is not updated until the Page.Validate method is called. As an alternative, you can place your code in the event handler for the Click or Command event instead of the Page_Load method.

Not all Web server controls support validation controls. The standard controls that can be validated with a validation control are:

Note

For an input control to be validated, the System.Web.UI.ValidationPropertyAttribute attribute must be applied to the control.

Note

When you use validator controls that derive from BaseValidator inside an UpdatePanel control, make sure that the validator control and the control it is associated with are in the same panel. For more information about using the UpdatePanel control for partial-page updates, see Partial-Page Rendering Overview.

When validation fails, you can set the focus on the associated input control by setting the SetFocusOnError property to true.

For a list of initial property values for an instance of BaseValidator, see the BaseValidator constructor.

Accessibility

For information about how to configure this control so that it generates markup that conforms to accessibility standards, see Accessibility in Visual Studio and ASP.NET and ASP.NET Controls and Accessibility.

Notes to Implementers

When you inherit from the BaseValidator class, you must override the following member: EvaluateIsValid().

Constructors

BaseValidator()

Initializes a new instance of the BaseValidator class.

Properties

AccessKey

Gets or sets the access key that allows you to quickly navigate to the Web server control.

(Inherited from WebControl)
Adapter

Gets the browser-specific adapter for the control.

(Inherited from Control)
AppRelativeTemplateSourceDirectory

Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control.

(Inherited from Control)
AssociatedControlID

This property is not supported.

Attributes

Gets the collection of arbitrary attributes (for rendering only) that do not correspond to properties on the control.

(Inherited from WebControl)
BackColor

Gets or sets the background color of the Web server control.

(Inherited from WebControl)
BindingContainer

Gets the control that contains this control's data binding.

(Inherited from Control)
BorderColor

Gets or sets the border color of the Web control.

(Inherited from WebControl)
BorderStyle

Gets or sets the border style of the Web server control.

(Inherited from WebControl)
BorderWidth

Gets or sets the border width of the Web server control.

(Inherited from WebControl)
ChildControlsCreated

Gets a value that indicates whether the server control's child controls have been created.

(Inherited from Control)
ClientID

Gets the control ID for HTML markup that is generated by ASP.NET.

(Inherited from Control)
ClientIDMode

Gets or sets the algorithm that is used to generate the value of the ClientID property.

(Inherited from Control)
ClientIDSeparator

Gets a character value representing the separator character used in the ClientID property.

(Inherited from Control)
Context

Gets the HttpContext object associated with the server control for the current Web request.

(Inherited from Control)
Controls

Gets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy.

(Inherited from Control)
ControlStyle

Gets the style of the Web server control. This property is used primarily by control developers.

(Inherited from WebControl)
ControlStyleCreated

Gets a value indicating whether a Style object has been created for the ControlStyle property. This property is primarily used by control developers.

(Inherited from WebControl)
ControlToValidate

Gets or sets the input control to validate.

CssClass

Gets or sets the Cascading Style Sheet (CSS) class rendered by the Web server control on the client.

(Inherited from WebControl)
DataItemContainer

Gets a reference to the naming container if the naming container implements IDataItemContainer.

(Inherited from Control)
DataKeysContainer

Gets a reference to the naming container if the naming container implements IDataKeysControl.

(Inherited from Control)
DesignMode

Gets a value indicating whether a control is being used on a design surface.

(Inherited from Control)
Display

Gets or sets the display behavior of the error message in a validation control.

EnableClientScript

Gets or sets a value indicating whether client-side validation is enabled.

Enabled

Gets or sets a value that indicates whether the validation control is enabled.

EnableTheming

Gets or sets a value indicating whether themes apply to this control.

(Inherited from WebControl)
EnableViewState

Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client.

(Inherited from Control)
ErrorMessage

Gets or sets the text for the error message displayed in a ValidationSummary control when validation fails.

Events

Gets a list of event handler delegates for the control. This property is read-only.

(Inherited from Control)
Font

Gets the font properties associated with the Web server control.

(Inherited from WebControl)
ForeColor

Gets or sets the color of the message displayed when validation fails.

HasAttributes

Gets a value indicating whether the control has attributes set.

(Inherited from WebControl)
HasChildViewState

Gets a value indicating whether the current server control's child controls have any saved view-state settings.

(Inherited from Control)
Height

Gets or sets the height of the Web server control.

(Inherited from WebControl)
ID

Gets or sets the programmatic identifier assigned to the server control.

(Inherited from Control)
IdSeparator

Gets the character used to separate control identifiers.

(Inherited from Control)
IsChildControlStateCleared

Gets a value indicating whether controls contained within this control have control state.

(Inherited from Control)
IsEnabled

Gets a value indicating whether the control is enabled.

(Inherited from WebControl)
IsTrackingViewState

Gets a value that indicates whether the server control is saving changes to its view state.

(Inherited from Control)
IsUnobtrusive

Gets a value that indicates whether the control generates unobtrusive JavaScript.

IsValid

Gets or sets a value that indicates whether the associated input control passes validation.

IsViewStateEnabled

Gets a value indicating whether view state is enabled for this control.

(Inherited from Control)
LoadViewStateByID

Gets a value indicating whether the control participates in loading its view state by ID instead of index.

(Inherited from Control)
NamingContainer

Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same ID property value.

(Inherited from Control)
Page

Gets a reference to the Page instance that contains the server control.

(Inherited from Control)
Parent

Gets a reference to the server control's parent control in the page control hierarchy.

(Inherited from Control)
PropertiesValid

Gets a value that indicates whether the control specified by the ControlToValidate property is a valid control.

RenderingCompatibility

Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with.

(Inherited from Control)
RenderUplevel

Gets a value that indicates whether the client's browser supports "uplevel" rendering.

SetFocusOnError

Gets or sets a value that indicates whether focus is set to the control specified by the ControlToValidate property when validation fails.

Site

Gets information about the container that hosts the current control when rendered on a design surface.

(Inherited from Control)
SkinID

Gets or sets the skin to apply to the control.

(Inherited from WebControl)
Style

Gets a collection of text attributes that will be rendered as a style attribute on the outer tag of the Web server control.

(Inherited from WebControl)
SupportsDisabledAttribute

Gets a value that indicates whether the control should set the disabled attribute of the rendered HTML element to "disabled" when the control's IsEnabled property is false.

(Inherited from Label)
TabIndex

Gets or sets the tab index of the Web server control.

(Inherited from WebControl)
TagKey

Gets the HTML tag that is used to render the Label control.

(Inherited from Label)
TagName

Gets the name of the control tag. This property is used primarily by control developers.

(Inherited from WebControl)
TemplateControl

Gets or sets a reference to the template that contains this control.

(Inherited from Control)
TemplateSourceDirectory

Gets the virtual directory of the Page or UserControl that contains the current server control.

(Inherited from Control)
Text

Gets or sets the text displayed in the validation control when validation fails.

Text

Gets or sets the text content of the Label control.

(Inherited from Label)
ToolTip

Gets or sets the text displayed when the mouse pointer hovers over the Web server control.

(Inherited from WebControl)
UniqueID

Gets the unique, hierarchically qualified identifier for the server control.

(Inherited from Control)
ValidateRequestMode

Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values.

(Inherited from Control)
ValidationGroup

Gets or sets the name of the validation group to which this validation control belongs.

ViewState

Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page.

(Inherited from Control)
ViewStateIgnoresCase

Gets a value that indicates whether the StateBag object is case-insensitive.

(Inherited from Control)
ViewStateMode

Gets or sets the view-state mode of this control.

(Inherited from Control)
Visible

Gets or sets a value that indicates whether a server control is rendered as UI on the page.

(Inherited from Control)
Width

Gets or sets the width of the Web server control.

(Inherited from WebControl)

Methods

AddAttributesToRender(HtmlTextWriter)

Adds the HTML attributes and styles that need to be rendered for the control to the specified HtmlTextWriter object.

AddedControl(Control, Int32)

Called after a child control is added to the Controls collection of the Control object.

(Inherited from Control)
AddParsedSubObject(Object)

Notifies the control that an element was parsed and adds the element to the Label control.

(Inherited from Label)
ApplyStyle(Style)

Copies any nonblank elements of the specified style to the Web control, overwriting any existing style elements of the control. This method is primarily used by control developers.

(Inherited from WebControl)
ApplyStyleSheetSkin(Page)

Applies the style properties defined in the page style sheet to the control.

(Inherited from Control)
BeginRenderTracing(TextWriter, Object)

Begins design-time tracing of rendering data.

(Inherited from Control)
BuildProfileTree(String, Boolean)

Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page.

(Inherited from Control)
CheckControlValidationProperty(String, String)

Verifies whether the specified control is on the page and contains validation properties.

ClearCachedClientID()

Sets the cached ClientID value to null.

(Inherited from Control)
ClearChildControlState()

Deletes the control-state information for the server control's child controls.

(Inherited from Control)
ClearChildState()

Deletes the view-state and control-state information for all the server control's child controls.

(Inherited from Control)
ClearChildViewState()

Deletes the view-state information for all the server control's child controls.

(Inherited from Control)
ClearEffectiveClientIDMode()

Sets the ClientIDMode property of the current control instance and of any child controls to Inherit.

(Inherited from Control)
ControlPropertiesValid()

Determines whether the control specified by the ControlToValidate property is a valid control.

CopyBaseAttributes(WebControl)

Copies the properties not encapsulated by the Style object from the specified Web server control to the Web server control that this method is called from. This method is used primarily by control developers.

(Inherited from WebControl)
CreateChildControls()

Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.

(Inherited from Control)
CreateControlCollection()

Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control.

(Inherited from Control)
CreateControlStyle()

Creates the style object that is used internally by the WebControl class to implement all style related properties. This method is used primarily by control developers.

(Inherited from WebControl)
DataBind()

Binds a data source to the invoked server control and all its child controls.

(Inherited from Control)
DataBind(Boolean)

Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event.

(Inherited from Control)
DataBindChildren()

Binds a data source to the server control's child controls.

(Inherited from Control)
DetermineRenderUplevel()

Determines whether the validation control can perform client-side validation.

Dispose()

Enables a server control to perform final clean up before it is released from memory.

(Inherited from Control)
EndRenderTracing(TextWriter, Object)

Ends design-time tracing of rendering data.

(Inherited from Control)
EnsureChildControls()

Determines whether the server control contains child controls. If it does not, it creates child controls.

(Inherited from Control)
EnsureID()

Creates an identifier for controls that do not have an identifier assigned.

(Inherited from Control)
Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
EvaluateIsValid()

When overridden in a derived class, this method contains the code to determine whether the value in the input control is valid.

FindControl(String, Int32)

Searches the current naming container for a server control with the specified id and an integer, specified in the pathOffset parameter, which aids in the search. You should not override this version of the FindControl method.

(Inherited from Control)
FindControl(String)

Searches the current naming container for a server control with the specified id parameter.

(Inherited from Control)
Focus()

Sets input focus to a control.

(Inherited from Control)
GetControlRenderID(String)

Gets the client ID of the specified control.

GetControlValidationValue(String)

Gets the value associated with the specified input control.

GetDesignModeState()

Gets design-time data for a control.

(Inherited from Control)
GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetRouteUrl(Object)

Gets the URL that corresponds to a set of route parameters.

(Inherited from Control)
GetRouteUrl(RouteValueDictionary)

Gets the URL that corresponds to a set of route parameters.

(Inherited from Control)
GetRouteUrl(String, Object)

Gets the URL that corresponds to a set of route parameters and a route name.

(Inherited from Control)
GetRouteUrl(String, RouteValueDictionary)

Gets the URL that corresponds to a set of route parameters and a route name.

(Inherited from Control)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
GetUniqueIDRelativeTo(Control)

Returns the prefixed portion of the UniqueID property of the specified control.

(Inherited from Control)
GetValidationProperty(Object)

Determines the validation property of a control (if it exists).

HasControls()

Determines if the server control contains any child controls.

(Inherited from Control)
HasEvents()

Returns a value indicating whether events are registered for the control or any child controls.

(Inherited from Control)
IsLiteralContent()

Determines if the server control holds only literal content.

(Inherited from Control)
LoadControlState(Object)

Restores control-state information from a previous page request that was saved by the SaveControlState() method.

(Inherited from Control)
LoadViewState(Object)

Loads the previously saved state for the control.

(Inherited from Label)
MapPathSecure(String)

Retrieves the physical path that a virtual path, either absolute or relative, maps to.

(Inherited from Control)
MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
MergeStyle(Style)

Copies any nonblank elements of the specified style to the Web control, but will not overwrite any existing style elements of the control. This method is used primarily by control developers.

(Inherited from WebControl)
OnBubbleEvent(Object, EventArgs)

Determines whether the event for the server control is passed up the page's UI server control hierarchy.

(Inherited from Control)
OnDataBinding(EventArgs)

Raises the DataBinding event.

(Inherited from Control)
OnInit(EventArgs)

Raises the Init event.

OnLoad(EventArgs)

Raises the Load event.

(Inherited from Control)
OnPreRender(EventArgs)

Raises the PreRender event.

OnUnload(EventArgs)

Raises the Unload event.

OpenFile(String)

Gets a Stream used to read a file.

(Inherited from Control)
RaiseBubbleEvent(Object, EventArgs)

Assigns any sources of the event and its information to the control's parent.

(Inherited from Control)
RegisterValidatorCommonScript()

Registers code on the page for client-side validation.

RegisterValidatorDeclaration()

Registers an ECMAScript array declaration using the array name Page_Validators.

RemovedControl(Control)

Called after a child control is removed from the Controls collection of the Control object.

(Inherited from Control)
Render(HtmlTextWriter)

Displays the control on the client.

RenderBeginTag(HtmlTextWriter)

Renders the HTML opening tag of the control to the specified writer. This method is used primarily by control developers.

(Inherited from WebControl)
RenderChildren(HtmlTextWriter)

Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

(Inherited from Control)
RenderContents(HtmlTextWriter)

Renders the contents of the Label into the specified writer.

(Inherited from Label)
RenderControl(HtmlTextWriter, ControlAdapter)

Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object.

(Inherited from Control)
RenderControl(HtmlTextWriter)

Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled.

(Inherited from Control)
RenderEndTag(HtmlTextWriter)

Renders the HTML closing tag of the control into the specified writer. This method is used primarily by control developers.

(Inherited from WebControl)
ResolveAdapter()

Gets the control adapter responsible for rendering the specified control.

(Inherited from Control)
ResolveClientUrl(String)

Gets a URL that can be used by the browser.

(Inherited from Control)
ResolveUrl(String)

Converts a URL into one that is usable on the requesting client.

(Inherited from Control)
SaveControlState()

Saves any server control state changes that have occurred since the time the page was posted back to the server.

(Inherited from Control)
SaveViewState()

Saves any state that was modified after the TrackViewState() method was invoked.

(Inherited from WebControl)
SetDesignModeState(IDictionary)

Sets design-time data for a control.

(Inherited from Control)
SetRenderMethodDelegate(RenderMethod)

Assigns an event handler delegate to render the server control and its content into its parent control.

(Inherited from Control)
SetTraceData(Object, Object, Object)

Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value.

(Inherited from Control)
SetTraceData(Object, Object)

Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value.

(Inherited from Control)
ToString()

Returns a string that represents the current object.

(Inherited from Object)
TrackViewState()

Causes the control to track changes to its view state so they can be stored in the object's ViewState property.

(Inherited from WebControl)
Validate()

Performs validation on the associated input control and updates the IsValid property.

Events

DataBinding

Occurs when the server control binds to a data source.

(Inherited from Control)
Disposed

Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested.

(Inherited from Control)
Init

Occurs when the server control is initialized, which is the first step in its lifecycle.

(Inherited from Control)
Load

Occurs when the server control is loaded into the Page object.

(Inherited from Control)
PreRender

Occurs after the Control object is loaded but prior to rendering.

(Inherited from Control)
Unload

Occurs when the server control is unloaded from memory.

(Inherited from Control)

Explicit Interface Implementations

IAttributeAccessor.GetAttribute(String)

Gets an attribute of the Web control with the specified name.

(Inherited from WebControl)
IAttributeAccessor.SetAttribute(String, String)

Sets an attribute of the Web control to the specified name and value.

(Inherited from WebControl)
IControlBuilderAccessor.ControlBuilder

For a description of this member, see ControlBuilder.

(Inherited from Control)
IControlDesignerAccessor.GetDesignModeState()

For a description of this member, see GetDesignModeState().

(Inherited from Control)
IControlDesignerAccessor.SetDesignModeState(IDictionary)

For a description of this member, see SetDesignModeState(IDictionary).

(Inherited from Control)
IControlDesignerAccessor.SetOwnerControl(Control)

For a description of this member, see SetOwnerControl(Control).

(Inherited from Control)
IControlDesignerAccessor.UserData

For a description of this member, see UserData.

(Inherited from Control)
IDataBindingsAccessor.DataBindings

For a description of this member, see DataBindings.

(Inherited from Control)
IDataBindingsAccessor.HasDataBindings

For a description of this member, see HasDataBindings.

(Inherited from Control)
IExpressionsAccessor.Expressions

For a description of this member, see Expressions.

(Inherited from Control)
IExpressionsAccessor.HasExpressions

For a description of this member, see HasExpressions.

(Inherited from Control)
IParserAccessor.AddParsedSubObject(Object)

For a description of this member, see AddParsedSubObject(Object).

(Inherited from Control)

Extension Methods

FindDataSourceControl(Control)

Returns the data source that is associated with the data control for the specified control.

FindFieldTemplate(Control, String)

Returns the field template for the specified column in the specified control's naming container.

FindMetaTable(Control)

Returns the metatable object for the containing data control.

Applies to

See also