ToolStripRenderer.RenderMenuItemBackground 事件

定義

發生於呈現 ToolStripMenuItem 的背景時。Occurs when the background for a ToolStripMenuItem is rendered.

public:
 event System::Windows::Forms::ToolStripItemRenderEventHandler ^ RenderMenuItemBackground;
public event System.Windows.Forms.ToolStripItemRenderEventHandler RenderMenuItemBackground;
member this.RenderMenuItemBackground : System.Windows.Forms.ToolStripItemRenderEventHandler 
Public Custom Event RenderMenuItemBackground As ToolStripItemRenderEventHandler 

範例

下列程式碼範例示範如何使用這個成員。The following code example demonstrates the use of this member. 在此範例中,事件處理常式會報告 RenderMenuItemBackground 事件的發生次數。In the example, an event handler reports on the occurrence of the RenderMenuItemBackground event. 此報表可協助您瞭解事件發生的時間,並可協助您進行調試。This report helps you to learn when the event occurs and can assist you in debugging.

若要執行範例程式碼,請將它貼到專案中,其中包含繼承自 ToolStripRenderer 的類型實例,例如 ToolStripSystemRendererToolStripProfessionalRendererTo run the example code, paste it into a project that contains an instance of a type that inherits from ToolStripRenderer, such as a ToolStripSystemRenderer or ToolStripProfessionalRenderer. 然後將實例命名為 ToolStripRenderer1,並確定事件處理常式與 RenderMenuItemBackground 事件相關聯。Then name the instance ToolStripRenderer1 and ensure that the event handler is associated with the RenderMenuItemBackground event.

private void ToolStripRenderer1_RenderMenuItemBackground(Object sender, ToolStripItemRenderEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Graphics", e.Graphics );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Item", e.Item );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ToolStrip", e.ToolStrip );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "RenderMenuItemBackground Event" );
}
Private Sub ToolStripRenderer1_RenderMenuItemBackground(sender as Object, e as ToolStripItemRenderEventArgs) _ 
     Handles ToolStripRenderer1.RenderMenuItemBackground

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "Graphics", e.Graphics)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Item", e.Item)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ToolStrip", e.ToolStrip)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"RenderMenuItemBackground Event")

End Sub

備註

如需處理事件的詳細資訊,請參閱處理和引發事件For more information about handling events, see Handling and Raising Events.

適用於