Using ASPxPopupControl to dynamically load user control(ascx) to popup content, you found that size of popup control is auto-resized to fit the size of loaded control (see example from devexpress code central - E346).
Why:
This is because we get html code of ascx control using ASPxCallback.GetRenderResult, which is later set to popup control using SetContentHtml function - this will internally set innerHTML of div with html code of our user control (ascx).
Problem:
Using ASPxPopupControl to dynamically load aspx page (not user control) to popup content using function SetContentUrl, you have problem - NO auto-resize of popup content area to respect size of loaded aspx page within popup iframe.
Solution:
Last weeks i try to do my best to make auto-resizing feature when popup control loads aspx page using SetContentUrl.
Finally i have an solution with such feature as an advanced example demo.
Download:
You can download example demo from
http://www.freewebs.com/terrorix/files/blog/ASPxPopupControl_AdvExample.zip
Please feel free to add comment if you have any question.
