Popup Control Limitations

• Jul 30, 2023

• 2 minutes to read

• ASPxPopupControl cannot contain another popup element (for example, another ASPxPopupControl, ASPxDockPanel) inside the content collection of any of its windows. If your scenario requires another popup element (e.g., a separate ASPxDockPanel) to appear when clicking the button located in the popup window, you must place this element outside of the first popup control.

• The width and height of ASPxPopupControl (specified by the ASPxWebControl.Width and ASPxWebControl.Height properties) cannot be set in percentages. The dimensions must be set in pixels, so that the control can be correctly displayed in all browsers.

• ASPxPopupControl contains a built-in ASPxCallbackPanel component. For this reason, if the content of your popup control contains a definition of a javascript function, you might face the Uncaught ReferenceError when trying to call it. See the following KB article for details on how to resolve this issue: How to make JavaScript loaded on a callback accessible in another execution context.