Hello, how can i configure the AllowedFileExtensions property to allow files having no file extension to be uploaded? For example, i want to allow .jpg and .txt, and also any file that has no extension. I have tried adding just ".", but it doesn't work.
This functionality is not supported out of the box, some custom coding is required to in order to get it work. I have prepared sample project that demonstrates a possible approach, you may find it as an attachment. I also suggest that you take a look at the following help article that explains how to apply custom validation to RadUpload.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.