ToolStripDropDown.KeyDown ToolStripDropDown.KeyDown ToolStripDropDown.KeyDown ToolStripDropDown.KeyDown Event

定義

キーが押され、保持されているときに発生します押し、ToolStripDropDownにフォーカスがあります。Occurs when a key is pressed and held down while the ToolStripDropDown has focus.

public:
 event System::Windows::Forms::KeyEventHandler ^ KeyDown;
[System.ComponentModel.Browsable(false)]
public event System.Windows.Forms.KeyEventHandler KeyDown;
member this.KeyDown : System.Windows.Forms.KeyEventHandler 
Public Custom Event KeyDown As KeyEventHandler 
属性

次のコード例では、このメンバーの使用を示します。The following code example demonstrates the use of this member. 例では、イベント ハンドラーが発生するときに報告、KeyDownイベント。In the example, an event handler reports on the occurrence of the KeyDown event. このレポートでは、イベントが発生してデバッグに役立つについて説明します。This report helps you to learn when the event occurs and can assist you in debugging. 複数のイベントまたは頻繁に発生するイベントを報告する、交換を検討MessageBox.ShowConsole.WriteLineまたはメッセージを複数行に追加TextBoxします。To 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.

コード例を実行する型のインスタンスを含むプロジェクトに貼り付けることToolStripDropDownというToolStripDropDown1します。To run the example code, paste it into a project that contains an instance of type ToolStripDropDown named ToolStripDropDown1. イベント ハンドラーに関連付けられていることを確認し、KeyDownイベント。Then ensure that the event handler is associated with the KeyDown event.

private void ToolStripDropDown1_KeyDown(Object sender, KeyEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Alt", e.Alt );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Control", e.Control );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Handled", e.Handled );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "KeyCode", e.KeyCode );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "KeyValue", e.KeyValue );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "KeyData", e.KeyData );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Modifiers", e.Modifiers );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Shift", e.Shift );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "SuppressKeyPress", e.SuppressKeyPress );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "KeyDown Event" );
}
Private Sub ToolStripDropDown1_KeyDown(sender as Object, e as KeyEventArgs) _ 
     Handles ToolStripDropDown1.KeyDown

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "Alt", e.Alt)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Control", e.Control)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Handled", e.Handled)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "KeyCode", e.KeyCode)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "KeyValue", e.KeyValue)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "KeyData", e.KeyData)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Modifiers", e.Modifiers)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Shift", e.Shift)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "SuppressKeyPress", e.SuppressKeyPress)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"KeyDown Event")

End Sub

注釈

イベントの処理の詳細については、「処理とイベントの発生」を参照してください。For more information about handling events, see Handling and Raising Events.

適用対象