I am trying to use jquery dialog to show RadFileExplorer control from the form in a pop up.

I am facing 2 issues,
1) When I set the modal to true, the entire screen along with the pop up is getting disabled.

2) When I set modal to false ( screen & popup is not disabled), & when I try to upload a file, I get Critical error: Object not sent to an instance of an object.
The file upload works perfectly if the popup is not used.


Error Log:
DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at Telerik.Web.UI.Widgets.FileBrowserContentProvider.CheckPermissionsInternal(String folderPath, PathPermissions permToCheck) at Telerik.Web.UI.RadFileExplorer.CheckFileValidity(UploadedFile uploadedFile, String uploadFolder) at Telerik.Web.UI.RadFileExplorer.ProcessUploadedFiles() at Telerik.Web.UI.RadFileExplorer.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)