Do not close ToolStripMenu on clicking in winforms

Question

I work on a c# winform project that the main toolstripmenu have not to be hide after user clicks on its item, how can I do that?

Answer 1

Set the AutoClose property of the parent menu item to prevent the menu strip from closing.

To demonstrate:

ToolStripMenuItem file = new ToolStripMenuItem("File");
file.DropDown.AutoClose = false;
file.DropDownItems.Add("New");
file.DropDownItems.Add("Open");
file.DropDownItems.Add("Exit");

MenuStrip ms = new MenuStrip();
ms.Items.Add(file);

this.Controls.Add(ms);

Now the responsibility is on you to close the menu yourself:

file.DropDown.Close();