Retrict file column format to PDF only

[hcquadros]

Is there a way to restrict file columns to upload PDF only?

I’ve tried data validation expression RIGHT(TEXT([_THIS]),3)=“pdf” (I know it was a long shot), but doesn’t work.

I can create a Validation Virtual Collumn IF(RIGHT(TEXT([File_column]),3)=“pdf”,True,False) or WORKFLOW with similar condition and somehow notify the user AFTER save the record, but I haven’t found a way to prevent it.

[LeventK]

[Bug] File type column cannot read the selected filename Feature Requests

@praveen @brian @tony When I use a File type column, there are some certain cases that I don’t want the users to upload files other than PDF, DOC or restrict the upload of certain file types like PNG, JPG etc. To verify this shall be as easy as constructing a Valid_if expression like: ".PDF" = UPPER(RIGHT([FileColumnName],4)) However, whatever way you construct this kind of expression to ensure the file type, the expression evaluates to a null value (empty string) and therefore always eval to…