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.NET Development
.NET Framework 3.5
ListView Class
ListView Events
 ItemActivate Event
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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
ListView..::.ItemActivate Event

Occurs when an item is activated.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
Visual Basic (Declaration)
Public Event ItemActivate As EventHandler
Visual Basic (Usage)
Dim instance As ListView
Dim handler As EventHandler

AddHandler instance.ItemActivate, handler
C#
public event EventHandler ItemActivate
Visual C++
public:
 event EventHandler^ ItemActivate {
    void add (EventHandler^ value);
    void remove (EventHandler^ value);
}
JScript
JScript does not support events.

The ItemActivate event occurs when the user activates one or more items in the ListView control. The user can activate an item with either a single-click or double-click, depending on the value of the Activation property, or with the keyboard. From within the event handler for the ItemActivate event, you can reference the SelectedItems or SelectedIndices properties to access the collection of items selected in the ListView to determine which items are being activated.

For more information about handling events, see Consuming Events.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the ItemActivate 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 MessageBox..::.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 ListView named ListView1. Then ensure that the event handler is associated with the ItemActivate event.

Visual Basic
Private Sub ListView1_ItemActivate(sender as Object, e as EventArgs) _ 
     Handles ListView1.ItemActivate

   MessageBox.Show("You are in the ListView.ItemActivate event.")

End Sub
C#
private void ListView1_ItemActivate(Object sender, EventArgs e) {

   MessageBox.Show("You are in the ListView.ItemActivate event.");

}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
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