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I have an asp.net textbox and a MaskedEditExtender control attached to it. The textbox is used for date input. The MaskedEditExtender has MaskType=’Date’ Mask=’99/99/9999′.
When the form is submitted with an invalid date, the browser shows a Javascript error ‘… string was not recognized as a valid datetime’.
I know why the error shows up. Is there a way to use the extender to just control what the user enters and not validate or convert the input?
on the text box you and set up a keypress function.
Validate if the key pressed is a number String.fromCharCode(event.which) or event.keycode (ie or FF)
Then can check that the text box is contains valid code and format.
If invalid you can set to a default that is valid or just prevent the keypress by using preventDefault()
if invalid format can disable the submit button also ….
Good luck