Known Issues and Breaking Changes

[Telerik Admin]

Q2 2011 Service Pack 1 (Version 2011.2.915)

Breaking change:  Now all HTML 5 compliant browsers, which support the File API interface (FireFox 4.0+, Chrome latest, Safari 5.0+), use the File API module.

Reason: Numerous of problems with the Silverlight/Flash plugins in browsers different than IE. The FileAPI module provides the same features as Flash/Silverlight with one exception. It is not yet possible to display extensions filter within the select file dialog. However, this functionality is part of the input[type='file'] specification and it is about time that the browsers implement it.

Problem: Using the Flash module in IE6/7/8 debug information is displayed into the Developers Bar JavaScript console.

Reason:  Non commented console.log invocation within the ActionScript code.

Solution: The problem will be resolved in the upcoming Latest internal build.

Q2 2010 (Version 2011.2.713)

Problem: RadAsyncUpload sometimes fail to upload the files to the target folder.

Reason: The temporary files, which RadAsyncUpload uses internally to save the uploaded files to the target folder, are being deleted too early, hence leaving the upload without files to save.

Solution: We have fixed the problem for the latest internal build (version 2010.2.722+). More information on how to obtain the latest internal build can be found here.

Alternatively, you can do the following:

Step 1: Add an ashx handler to your app. Inside, use the following code:

<%@ WebHandler Language="C#" Class="CustomHandler" %>

using System;
using System.Web;
using Telerik.Web.UI;

public class CustomHandler : AsyncUploadHandler {


    protected override IAsyncUploadResult Process(UploadedFile file, HttpContext context, IAsyncUploadConfiguration configuration, string tempFileName)
    {
        configuration.TimeToLive = TimeSpan.FromHours(4);
        return base.Process(file, context, configuration, tempFileName);
    }

}

Then, set the HttpHandlerUrl property of RadAsyncUpload to point to that handler. Like this:

<telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" HttpHandlerUrl="~/CustomHandler.ashx" TargetFolder="~/Documents">
        </telerik:RadAsyncUpload>

Related forum post: FIX: RadAsyncUpload sometimes does not save the uploaded files to the target folder.

---

Other issues:

SOLUTION: Upload fails OR Login prompt appears when using Forms / Windows Authentication