Turn Of Validation at runtime

[tommyf]

I have the validating event on some of my text boxes on my windows form.

 

When I press a search button my controls clear and some of them are enabled and some are not. The problem I have is that I can do a search on one or all of the textboxes but if I click in a textbox and then change my mind on what I want to search for the validating event kicks in and I can't get out of it until I entry something into it.

 

Can I turn the validating event on and off when needed at run time

[JABE]

I think the "change of mind" aspect is virtually impossible to distinguish from an omitted entry. You probably shouldn't be using a validation control for this. Anyway, you can dynamically concatenate your search criteria and just omit those w/c have blank values.

 

But addressing the question, the workaround I'm using so far is to set CausesValidation = False for the control that shouldn't fire validation events (such as a Cancel button). The problem is if you close the form in the same event and the last control to have focus is a validating control, then the Validating event of that control will fire. So another workaround I did was to iterate thru Form.Controls and set CausesValidation of each control to False. Another option is setting a form-level flag in the Closing event of the form; in the Validating events, just eval this flag so that validations don't fire when the form is about to close.

[dhj]

you will have to change CauseValidation to false in your search button

[tommyf]

Thanksfor your help that works fine.