ToolStripControlHost.KeyPress 事件

定義

發生於按下按鍵且焦點在裝載控制項時。Occurs when a key is pressed while the hosted control has focus.

public:
 event System::Windows::Forms::KeyPressEventHandler ^ KeyPress;
public event System.Windows.Forms.KeyPressEventHandler KeyPress;
member this.KeyPress : System.Windows.Forms.KeyPressEventHandler 
Public Custom Event KeyPress As KeyPressEventHandler 

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 KeyPress 事件的發生。In the example, an event handler reports on the occurrence of the KeyPress 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. 若要報告多個事件或經常發生的事件,請考慮使用 Console.WriteLine 取代 MessageBox.Show,或將訊息附加到多行 TextBoxTo 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.

若要執行範例程式碼,請將它貼入專案,其中包含名為 ToolStripControlHost1ToolStripControlHost 類型的實例。To run the example code, paste it into a project that contains an instance of type ToolStripControlHost named ToolStripControlHost1. 然後確定事件處理常式與 KeyPress 事件相關聯。Then ensure that the event handler is associated with the KeyPress event.

private void ToolStripControlHost1_KeyPress(Object sender, KeyPressEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "KeyChar", e.KeyChar );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Handled", e.Handled );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "KeyPress Event" );
}
Private Sub ToolStripControlHost1_KeyPress(sender as Object, e as KeyPressEventArgs) _ 
     Handles ToolStripControlHost1.KeyPress

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "KeyChar", e.KeyChar)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Handled", e.Handled)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"KeyPress 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

另請參閱