I want create a custom task pane that users can hide or display by clicking a toggle button on the Ribbon. You should always create a user interface (UI) element, such as a button, that users can click to display or hide your custom task pane, because Microsoft Office applications do not provide a default way for users to show or hide custom task panes.
Software Used:
.net 2.0 and c#,Vsto
Can u give the Steps For that