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.
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.