本文整理匯總了VB.NET中System.Windows.Forms.ToolStripDropDown.Closing事件的典型用法代碼示例。如果您正苦於以下問題：VB.NET ToolStripDropDown.Closing事件的具體用法？VB.NET ToolStripDropDown.Closing怎麽用？VB.NET ToolStripDropDown.Closing使用的例子？那麽, 這裏精選的事件代碼示例或許可以為您提供幫助。您也可以進一步了解該事件所在類System.Windows.Forms.ToolStripDropDown的用法示例。
在下文中一共展示了ToolStripDropDown.Closing事件的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1:
' This method handles the Closing event. The ToolStripDropDown
' control is not allowed to close unless the Done menu item
' is clicked or the Close method is called explicitly.
' The Done menu item is enabled only after both of the other
' menu items have been selected.
Private Sub contextMenuStrip_Closing(sender As Object, e As ToolStripDropDownClosingEventArgs) Handles contextMenuStrip1.Closing
If e.CloseReason <> ToolStripDropDownCloseReason.CloseCalled Then
If subItem1ToolStripMenuItem.Checked AndAlso subItem2ToolStripMenuItem.Checked AndAlso doneToolStripMenuItem.Enabled Then
' Reset the state of menu items.
subItem1ToolStripMenuItem.Checked = False
subItem2ToolStripMenuItem.Checked = False
doneToolStripMenuItem.Enabled = False
' Allow the ToolStripDropDown to close.
' Don't cancel the Close operation.
e.Cancel = False
Else
' Cancel the Close operation to keep the menu open.
e.Cancel = True
Me.toolStripStatusLabel1.Text = "Close canceled"
End If
End If
End Sub