I followed the attached example to create a RegularExpressionValidator for a input.
I have 3 inputs (2 DateTimePicker & 1 RadTextBox" and 5 "RadButton") to operate several actions. I now want that only the click on 3 of my 5 buttons make the validation of a specific "RadTextBox" because its an extra that is not always used.
Now, no matter which button I press I get the check for the RadTextBox and Error message presented.
Is there a filter or specification tag that I can use, that the RegularExpressionValidator use only my selected buttons?
(C#; VS2015; ASP 4.5; Win 7; UI for ASP.net AJAX latest Version)