PropertyValueChangedEventArgs Class

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Provides data for the PropertyValueChanged event of a PropertyGrid.

public ref class PropertyValueChangedEventArgs : EventArgs

[System.Runtime.InteropServices.ComVisible(true)]
public class PropertyValueChangedEventArgs : EventArgs

public class PropertyValueChangedEventArgs : EventArgs

[<System.Runtime.InteropServices.ComVisible(true)>]
type PropertyValueChangedEventArgs = class
    inherit EventArgs

type PropertyValueChangedEventArgs = class
    inherit EventArgs

Public Class PropertyValueChangedEventArgs
Inherits EventArgs

Inheritance: Object

EventArgs
PropertyValueChangedEventArgs

Attributes: ComVisibleAttribute

Examples

The following code example demonstrates the use of this type. In the example, an event handler reports on the occurrence of the PropertyValueChanged event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type PropertyGrid named PropertyGrid1. Then ensure that the event handler is associated with the PropertyValueChanged event.

private void PropertyGrid1_PropertyValueChanged(Object sender, PropertyValueChangedEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "ChangedItem", e.ChangedItem );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "OldValue", e.OldValue );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "PropertyValueChanged Event" );
}

Private Sub PropertyGrid1_PropertyValueChanged(sender as Object, e as PropertyValueChangedEventArgs) _ 
     Handles PropertyGrid1.PropertyValueChanged

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "ChangedItem", e.ChangedItem)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "OldValue", e.OldValue)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"PropertyValueChanged Event")

End Sub

Remarks

The PropertyValueChanged event occurs when the user changes the value of a property, which is specified as a GridItem, in a PropertyGrid.

For more information about handling events, see Handling and Raising Events.

Constructors

PropertyValueChangedEventArgs(GridItem, Object)

Initializes a new instance of the PropertyValueChangedEventArgs class.

Properties

ChangedItem	Gets the GridItem that was changed.
OldValue	The value of the grid item before it was changed.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Applies to

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