重写OnClosing
Protected Overrides Sub OnClosing(ByVal e As System.ComponentModel.CancelEventArgs)
e.Cancel = True
Me.WindowState = FormWindowState.Minimized
End Sub
第二个问题
Private Sub Form1_Closing(ByVal eventSender As System.Object, ByVal eventArgs As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
eventArgs.Cancel = True
End Sub