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CacheVirtualItemsEventArgs Class

Provides data for the CacheVirtualItems event.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public class CacheVirtualItemsEventArgs : EventArgs
public class CacheVirtualItemsEventArgs extends EventArgs
public class CacheVirtualItemsEventArgs extends EventArgs
Not applicable.

The CacheVirtualItems event occurs when a new area of a ListView in virtual mode is exposed and the ListView determines a new range of items is needed.

The following code example demonstrates the use of this type. In the example, an event handler reports on the occurrence of the CacheVirtualItems 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 System.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 CacheVirtualItems event.

private void ListView1_CacheVirtualItems(Object sender, CacheVirtualItemsEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "StartIndex", e.StartIndex );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "EndIndex", e.EndIndex );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "CacheVirtualItems Event" );
}

System.Object
   System.EventArgs
    System.Windows.Forms.CacheVirtualItemsEventArgs
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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