However, for code readability, it would make sense to place all validation code in the Validating event.
So, which is the better option, in terms of both efficiency and industry-standards?
I have this code that is working: Have a look here: stackoverflow.com/questions/12659844/….
From what I understand, they both occur at the same time. Leave Event, the Leave event occurs right before the validating event.
This would initially make me think I would rather use the Leave event, as it occurs first.
Agreed that Regular Expressions might be faster, but ... Basically, this code is for a User Control which contains a label, a text box, and an error provider.
It also has various other properties, but here's the bit which deals with validation.
No write the first line of defense, but recognize the job does not end there... If I’m typing some text and the application prevents that (regardless of how it does that), I’m rightfully pissed off.
There are multiple values to handle this: annoy them when they try to paste text from somewhere else.
Private Sub txt Validating(sender As Object, e As System.
Valid = False Else If m Check Type = Check Byte And CType(Me. Text, Integer) Dim err Provider As New Error Provider ' Verify that this field is not blank.
You hook up each textbox to the same event handler (the example I provided uses buttons..
Key Press Dim tb As Text Box = CType(sender, Text Box) If Not Is Numeric(tb.
Imagine the following: I am trying to copy an number from a website.