本文整理汇总了C#中System.Windows.Forms.ToolStripDropDown.Closing事件的典型用法代码示例。如果您正苦于以下问题：C# ToolStripDropDown.Closing事件的具体用法？C# ToolStripDropDown.Closing怎么用？C# ToolStripDropDown.Closing使用的例子？那么恭喜您, 这里精选的事件代码示例或许可以为您提供帮助。您也可以进一步了解该事件所在类System.Windows.Forms.ToolStripDropDown的用法示例。
在下文中一共展示了ToolStripDropDown.Closing事件的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: contextMenuStrip_Closing
// 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 void contextMenuStrip_Closing(
object sender,
ToolStripDropDownClosingEventArgs e)
{
if (e.CloseReason != ToolStripDropDownCloseReason.CloseCalled)
{
if (subItem1ToolStripMenuItem.Checked &&
subItem2ToolStripMenuItem.Checked &&
doneToolStripMenuItem.Enabled)
{
// 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;
this.toolStripStatusLabel1.Text = "Close canceled";
}
}
}