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postbacktelerikradwindow

How to stop Telerik RadWindow from always reloading on the next PostBack

I am invoking a RadWindow as a dialog in my web page. I am invoking from code-behind since I need to pass some parameters:

radWindow1.NavigateUrl = url + "?England,Germany,France";

radWindow1.VisibleOnPageLoad = true;

This works great, however it keeps reloading on each and every postback.

How can I stop the RadWindow from reloading? I don't mind code-behind or JavaScript to achieve this.

Solution

  • You can use the IsPostBack property of the page to see if this is the first time it is loading or a postback and set the VisibleOnPageLoad property accordingly:

        radWindow1.VisibleOnPageLoad = !Page.IsPostBack;

    This way the window will open only if IsPostBack is false - i.e. when the user first opens the page.