RadUpload in Radgrid FormTemplate: Client-Side Validation

[Clarence]

Hi,
    Does anyone know of a way to validate a RadUpload that is located inside of a RadDrid's FormTemplate via JavaScript.  I want to validate these two things: 1) That the RadUpload contains a file. 2) That the RadUpload's File contains a valid extensions.  I have looked at some tutorials for Client-Side validation, but none show how to validate a control within the FormTemplate.

Thanks in advance,
Clarence

[Mahesh]

We are having the same problem , please provide the solution to this issue.

Thanks,
Mahesh

[Bozhidar]

Hi Mahesh,

You can check whether the upload control has a file uploaded with the following code:

if ($telerik.findControl(document, "RadAsyncUpload1")._uploadedFiles.length > 0)
...

As for the file extension validation, you can use RadAsyncUpload's AllowedFileExtensions property. A demonstration on how to use the property can be found in the following demo:
http://demos.telerik.com/aspnet-ajax/upload/examples/async/validation/defaultcs.aspx?product=asyncupload 

Regards,
Bozhidar
the Telerik team