Visual Basic 2005express edition

- Double click your form to bring you to the editor.

- On top of the editor, you’ll see 2 combo boxes

- On the left combo box, choose events (e.g. Form1 Events)

- On the right one, choose the ’FormClosing’ event. You can write your code here. Below is the example for asking confirmation before closing.


Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As _
　System.Windows.Forms.FormClosingEventArgs) Handles _
　Me.FormClosing

　If MessageBox.Show(’’Confirm exit?’’, ’’Exit’’, _
　　MessageBoxButtons.YesNo) = _
　　Windows.Forms.DialogResult.Yes Then
　　e.Cancel = False
　Else
　　e.Cancel = True
　End If

End Sub

你係程式碼模式下，係上便會有兩個拉下式清單，係左邊選番(form events)，右邊選FormClosing

會加入以下程式:
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing

End Sub

係end sub之前加入
If MessageBox.Show(＂內容＂,＂title＂, MessageBoxButtons.YesNo) = Windows.Forms.DialogResult.No Then
e.Cancel = True
End If