.net - How to stop TypeValidationCompleted event? -



had included 1 masktext box date.
in mask text boxes typevalidationcompleted code...

if (not e.isvalidinput)                 msgbox("the data supplied must valid date.", msgboxstyle.critical, "date error")                 tdatemask.text = ""                 tdatemask.focus()             end if

now when try exit form pressing close button of form event occurring.
question "how stop event while try exit form?"

you can set flag , when validationcompleted event kicks off check flag, if set true (meaning form closing) can have ignore check.

ex: _formclosing global boolean set true during form closing event.

if (not e.isvalidinput) , (not _formclosing)             msgbox("the data supplied must valid date.", msgboxstyle.critical, "date error")             tdatemask.text = ""             tdatemask.focus()         end if

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