Gets or sets a URL where the client's web browser will navigate when the text or image is clicked within a popup window's (or a dock panel's) header.
A string value which specifies the required navigation location.
If a specific navigation location is assigned to the HeaderNavigateUrl property, a window's header text and header image serve as a link (the header text is displayed underlined in this instance). A click on this link navigates the application to the specified location.
If no navigation location is assigned for a window's header link, no navigation is performed when clicking the header's text or image.