The ASPxPopupControl allows display of the contents of other web pages specified by their URLs. In order to load a specific web page into the ASPxPopupControl, the control's ContentUrl property is used.
In this demo, the ASPxPopupControl's ContentUrl property is assigned with the navigation location of a specific web page that emulates a feedback form. The page's contents are loaded into the popup control's window automatically.
This demo also illustrates the resizing feature of the ASPxPopupControl. This feature is enabled by setting the AllowResize property to true. The popup control's window can be resized by using the size grip or dragging the window's edges.