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public FormListView()
{
InitializeComponent();
this.ContextMenuStrip = contextMenuStrip3;
contextMenuStrip3.Opening += new CancelEventHandler(contextMenuStrip3_Opening);
}
void contextMenuStrip3_Opening(object sender, CancelEventArgs e)
{
ContextMenuStrip menu = sender as ContextMenuStrip;
foreach (ToolStripMenuItem mi in menu.Items)
{
//是否存在子菜单
if(mi.HasDropDownItems)
//隐藏第一个子菜单
mi.DropDownItems[0].Visible = false;
}
}