I want to stop the post back of the page on submit button if the file uploaded in the radUpload control does not match the currect extension and mime types specified at the client side using the AllowedFileExetensions and AllowedMimeTypes properties.
How do i go about doing that??
Thanks
1 Answer, 1 is accepted
0
Genady Sergeev
Telerik team
answered on 25 Jan 2010, 09:59 AM
Hello vishesh kumar,
You can use the clientside validateExtensions method combined with ASP.NET custom validator. More information on that scenario can be found in following help article.