RadAsyncUpload doesn't allow M4A

[Lakshmi]

Hello, 

We are trying to upload a M4A file type using RadAsyncUpload and getting an error saying that it is not an allowed type, so is there any custom method to allow that along with the default allowed extensions. 

We want all the default allowed ones and then this extra M4A. Please advice an optimized solution. 

 

Thanks. 

 

[Attila Antal]

Hi Lakshmi,

Please check out the following articles that are addressing this topic:

• Security
• RadAsyncUpload File Filtering
• How to filter file selection in the upload dialog

If you want to change the allowed file extensions dynamically, you can follow the instructions from the Change AllowedFileExtensions and Check Uploaded Files KB article.

Kind regards,
Attila Antal
Progress Telerik