ListViewVirtualItemsSelectionRangeChangedEventArgs 类

定义

public ref class ListViewVirtualItemsSelectionRangeChangedEventArgs : EventArgs

public class ListViewVirtualItemsSelectionRangeChangedEventArgs : EventArgs

type ListViewVirtualItemsSelectionRangeChangedEventArgs = class
    inherit EventArgs

Public Class ListViewVirtualItemsSelectionRangeChangedEventArgs
Inherits EventArgs

继承

Object

EventArgs

ListViewVirtualItemsSelectionRangeChangedEventArgs

示例

下面的代码示例演示如何使用此类型。 在此示例中，事件处理程序报告事件的发生情况 VirtualItemsSelectionRangeChanged 。 此报告可帮助你了解事件发生的时间，并可以帮助你进行调试。 若要报告多个事件或频繁发生的事件，请考虑将 ShowConsole.WriteLine 消息替换为 或将消息追加到多行 TextBox。

若要运行示例代码，请将其粘贴到包含名为 ListView1的类型的ListView实例的项目中。 然后，确保事件处理程序与 VirtualItemsSelectionRangeChanged 事件相关联。

private void ListView1_VirtualItemsSelectionRangeChanged(Object sender, ListViewVirtualItemsSelectionRangeChangedEventArgs e) {

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

Private Sub ListView1_VirtualItemsSelectionRangeChanged(sender as Object, e as ListViewVirtualItemsSelectionRangeChangedEventArgs) _ 
     Handles ListView1.VirtualItemsSelectionRangeChanged

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "EndIndex", e.EndIndex)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "IsSelected", e.IsSelected)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "StartIndex", e.StartIndex)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"VirtualItemsSelectionRangeChanged Event")

End Sub

注解

当 VirtualItemsSelectionRangeChanged 处于虚拟模式并且更改一系列项的选择状态时 ListView ，将发生该事件。