Description: An unhandled exception occurred during the execution of the current web request.
Please review the stack trace for more information about the error and where it originated in the code. Format Exception: Input string was not in a correct format.
The following code segment shows a group name is provided for the required field validator and passed it to Page_Client Validate() function.
In this case, only required field validatior will be fired up and not the regular expression validator.
You could say that a program's testers are supposed to do this; yes, they should - nobody else should. If not, if there is even just one unallowed character that is not supposed to be there, the Match method will return False. Instead of you having to loop through each character to determine what that character is, you simply need the correct Regular Expression pattern. Clear() Surname Valid = False Else Surname Valid = True End If End Sub It is basically the exact same code for the Name box, but I just included the capability to comprehend a space character as well. People expect to enter a phone number in a format similar to this: ###-###-####.
Add the following inside your name Textbox's Leave event: Private Sub txt Name_Leave(sender As Object, e As System. Leave 'If Not A Matching Format Entered If Not Regex. If you are uncertain about the pattern I supplied, have a look here. Just a note, some surnames contain spaces and even hyphens. Sometimes there are even brackets surrounding the code.
The following Java Script code shows how “Page_Client Validate()” function can be used before closeing window.
How about Calling any specific validator rather than all? In this case we need to provide a Validation Group name for the validator and pass the validator group name to Page_Client Validate() function as parameter.
This means that as a programmer, you have the power to supply the exact pattern for the input you desire in any text input field. Again, certain special characters are obviously not allowed.
Because the only other online tool I could find for testing .
NET regular expressions was slow and covered with ads, I decided to write a simple AJAX regular expression tester.
I think the reason you are getting this error is that you are not using the client side function properly.
You will have to set the is Valid property to “true” or “false” in the client side function.