Upload is null

[Majid Mahmoodi]

Dear Support
My code is :
public class FileSelector:Telerik.Web.UI.RadFileExplorer
    {
        public string Path { get; set; }
        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            if(string.IsNullOrEmpty(Path))
                Path = "~/Files/editor/";
            Configuration.DeletePaths = Configuration.UploadPaths = Configuration.ViewPaths = new string[] { Path+"images/" };
            Upload.AllowedFileExtensions = Configuration.SearchPatterns= new string[] { "*.jpg", "*.jpeg", "*.gif", "*.png" };;
            Upload.InitialFileInputsCount = 1;
            Upload.ControlObjectsVisibility = ControlObjectsVisibility.None;
        }
    }
-----------
Upload is null.
How can I access FileExplorer's Upload?
THanks.

[Dobromir]

Hi Majid,

The provided code looks OK with one small exception. The ViewPaths / UploadPaths / DeletePaths properties are initialized in the controls OnLoad event, thus you need to apply the customizations before base method, e.g.:

protected override void OnLoad(EventArgs e)
{

    if (string.IsNullOrEmpty(Path))
        Path = "~/Files/editor/";
    Configuration.DeletePaths = Configuration.UploadPaths = Configuration.ViewPaths = new string[] { Path + "images/" };
    Upload.AllowedFileExtensions = Configuration.SearchPatterns = new string[] { "*.jpg", "*.jpeg", "*.gif", "*.png" }; ;
    Upload.InitialFileInputsCount = 1;
    Upload.ControlObjectsVisibility = ControlObjectsVisibility.None;

    base.OnLoad(e);
}

I am not quite sure what may be causing the experienced problem. I tried the code snippet in a sample page and it was working as expected. For your convenience I have attached my test page, could you please modify it to a point where the problem occurs and send it back?

Kind regards,
Dobromir
the Telerik team