How to limit file types uploaded

[Al]

Hi,

In my aspx, I have tried setting 'AllowedFileExtensions='.xls,.xlsx' and <FileFilters><FileFilter Exntensions='xls,xlsx'> but neither seem to have any effect - please advise.

[Dimitar]

Hi,

You may browse the RadAsyncUpload Overview and Validation demos which show how file extensions validation could be implemented. I hope that they will get you in the right direction.

Regards,
Dimitar
Telerik

[Al]

Thanks Dimitar - so if I understand correctly it is not possible to limit the type of file that is selected, instead I need to ​validate after the file is selected and then ​handle the types from there on?

[Dimitar]

Hi,

Yes, this is correct. You cannot limit the type of file a user may try to select from the popup OS window. But you may validate if the chosen file matches the required file type, specified by the allowed extensions.

Regards,
Dimitar
Telerik