How to clear RadUpload file (but keep widget) from the client side?

[Robert Columbia]

I have a RadUpload that always shows exactly one upload field.  I have a requirement to clear the input field from elsewhere on the page.  The input element should still remain (if I have to temporarily "delete" it and then remake it, that is ok as long as it still works with postback, e.g. if it has the same clientid), and remain usable, just without the file that was previously selected there.  Is there an easy way to do this with Telerik's clientside api, or do I need to get dirty with raw dhtml?  I should not use IE specific features.


Telerik.Web.UI.dll 2010.2.713.35

[Simon]

Hi Robert Columbia,

You can use use the upload.clearFileInputAt(index) method on the client side. Here is a sample function clearing all Inputs in the Upload:

function clearAllInputs()
{
  var upload = $find("<%= RadUpload1.ClientID %>");
  var fileInputs = upload.getFileInputs();
  for (var i=fileInputs.length - 1; i >= 0; i--)
  {
      upload.clearFileInputAt(i);
  }
}

Greetings,
Simon
the Telerik team

[Lighthouse Developer]

Is clearFileInputAt(index) still available in the latest telerik version? Doesn't work for me, seems as the method is not supported anymore.

[Simon]

Hello Robert Columbia,

Yes, the method is supported in the latest version. Please see this demo.

Greetings,
Simon
the Telerik team