What is ContextMenuStrip ?
A context menu is one that appears when the user right-clicks on an area of an application or form, or in the simple we can say that the menu which appears when we right click on any where in the computer is called context menu.
This is a simple example of context menu.
Add a context menustrip.It will appear below in window form.
Go to Menu and ToolBar in toolbox and add a context menustrip from there.
Now double click the context menu strip so that it will added to your form.
Now the context menu is added to the form.
Create a MenuStrip item and name it Delete as follow.
So here i have explained you how to create a menustrip.