Control.Click 事件

public:
 event EventHandler ^ Click;

public event EventHandler Click;

public event EventHandler? Click;

member this.Click : EventHandler 

Public Custom Event Click As EventHandler 

事件類型

範例

以下程式碼範例展示了事件處理程序中的事件 Click 。

   // This example uses the Parent property and the Find method of Control to set
   // properties on the parent control of a Button and its Form. The example assumes
   // that a Button control named button1 is located within a GroupBox control. The 
   // example also assumes that the Click event of the Button control is connected to
   // the event handler method defined in the example.
private:
   void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Get the control the Button control is located in. In this case a GroupBox.
      Control^ control = button1->Parent;
      
      // Set the text and backcolor of the parent control.
      control->Text = "My Groupbox";
      control->BackColor = Color::Blue;
      
      // Get the form that the Button control is contained within.
      Form^ myForm = button1->FindForm();
      
      // Set the text and color of the form containing the Button.
      myForm->Text = "The Form of My Control";
      myForm->BackColor = Color::Red;
   }

// This example uses the Parent property and the Find method of Control to set
// properties on the parent control of a Button and its Form. The example assumes
// that a Button control named button1 is located within a GroupBox control. The 
// example also assumes that the Click event of the Button control is connected to
// the event handler method defined in the example.
private void button1_Click(object sender, System.EventArgs e)
{
   // Get the control the Button control is located in. In this case a GroupBox.
   Control control = button1.Parent;
   // Set the text and backcolor of the parent control.
   control.Text = "My Groupbox";
   control.BackColor = Color.Blue;
   // Get the form that the Button control is contained within.
   Form myForm = button1.FindForm();
   // Set the text and color of the form containing the Button.
   myForm.Text = "The Form of My Control";
   myForm.BackColor = Color.Red;
}

' This example uses the Parent property and the Find method of Control to set
' properties on the parent control of a Button and its Form. The example assumes
' that a Button control named button1 is located within a GroupBox control. The 
' example also assumes that the Click event of the Button control is connected to
' the event handler method defined in the example.
Private Sub button1_Click(sender As Object, e As System.EventArgs) Handles button1.Click
   ' Get the control the Button control is located in. In this case a GroupBox.
   Dim control As Control = button1.Parent
   ' Set the text and backcolor of the parent control.
   control.Text = "My Groupbox"
   control.BackColor = Color.Blue
   ' Get the form that the Button control is contained within.
   Dim myForm As Form = button1.FindForm()
   ' Set the text and color of the form containing the Button.
   myForm.Text = "The Form of My Control"
   myForm.BackColor = Color.Red
End Sub

備註

事件會 Click 將 傳遞 EventArgs 給事件處理器，因此只會表示點擊發生。 如果你需要更精確的滑鼠資訊（按鍵、點擊次數、滾輪旋轉或位置），就用事件。MouseClick 然而 MouseClick ，若點擊是由滑鼠以外的動作引起，例如按下 ENTER 鍵，事件不會被觸發。

雙擊鍵由使用者作業系統的滑鼠設定決定。 使用者可以設定滑鼠按鍵點擊間隔時間，這應該視為雙擊而非兩次點擊。 每當雙擊控制項時，事件 Click 就會被觸發。 例如，如果你有事件處理器來處理 ClickDoubleClick 和 Form 事件Click，當雙擊表單並呼叫兩個方法時，和DoubleClick事件就會被觸發。 若雙擊某個控制項且該控制項不支援該 DoubleClick 事件， Click 事件可能會被重複提起。

你必須設定 StandardClick 的 ControlStyles 值 to true 才能提升此事件。

如需處理事件的詳細資訊，請參閱 處理和引發事件。

繼承者備註

從標準Windows Forms控制項繼承並將StandardClick或StandardDoubleClickControlStyles 的值改為 true，若控制不支援 Click 或 DoubleClick 事件，則可能產生意外行為或完全無效。

下表列出Windows Forms控制項，以及根據指定滑鼠動作會引發的事件（Click 或 DoubleClick）。

* 滑鼠指標必須位於子物件（TreeNode 或 ListViewItem）。

** 他們的TabControl收藏中至少必須有一張TabPageTabPages。

另請參閱

• OnClick(EventArgs)
• StandardClick
• MouseClick
• DoubleClick
• MouseDoubleClick