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ListView.VirtualItemsSelectionRangeChanged 事件

定義

發生在 ListView 處於虛擬模式,而且某個範圍之項目的選取狀態變更時。

public:
 event System::Windows::Forms::ListViewVirtualItemsSelectionRangeChangedEventHandler ^ VirtualItemsSelectionRangeChanged;
public event System.Windows.Forms.ListViewVirtualItemsSelectionRangeChangedEventHandler VirtualItemsSelectionRangeChanged;
public event System.Windows.Forms.ListViewVirtualItemsSelectionRangeChangedEventHandler? VirtualItemsSelectionRangeChanged;
member this.VirtualItemsSelectionRangeChanged : System.Windows.Forms.ListViewVirtualItemsSelectionRangeChangedEventHandler 
Public Custom Event VirtualItemsSelectionRangeChanged As ListViewVirtualItemsSelectionRangeChangedEventHandler 

事件類型

範例

下列程式碼範例示範如何使用這個成員。 在此範例中,事件處理常式會報告事件的發生次數 VirtualItemsSelectionRangeChanged 。 此報告可協助您瞭解事件發生的時間,並可協助您進行偵錯。 若要報告多個事件或經常發生的事件,請考慮將 取代 MessageBox.ShowConsole.WriteLine 或將訊息附加至多行 TextBox

若要執行範例程式碼,請將它貼入包含名為 ListView1 之類型 ListView 實例的專案。 然後,確定事件處理常式與 事件相關聯 VirtualItemsSelectionRangeChanged

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

備註

ListView如果 不是處於虛擬模式,就會 ItemSelectionChanged 發生事件。

如需處理事件的詳細資訊,請參閱 處理和引發事件

適用於

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