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Hi, I have a validating event on a textbox in which I want to prevent the user to leave the textbox without entering the right data.
So could some demonstrate how when focus is lost on the field, if the data is not valid, a default value will be entered instead e.g.
The code sample below illustrates how to validate the price value.
This will allow that control to gain focus without firing the Validating event on the text box that the user is leaving. You can read about all the gory details of Causes Validation and validating in this thread: (watch for line wrap on the URL) The bottom line is that Causes Validation will (with a few caveats) solve your problem by preventing your Validating event handler from being called (sort of... I would have though that the lines in the Entering handlers would have been sufficient. Doesn't it work to simply set Causes Validation to "false" on both text boxes and then set it to "true" for all other controls, and not manipulate it at all in the event handlers?
like I said, read the other link), so you don't have to test for which control has focus in your Validating event handler. In theory this should cause the behaviour you describe: you can move freely between the text boxes, but trying to send focus to any other control will cause both text boxes' Validating events to fire (assuming that you've visited both). Setting the Causes Validation of the other textbox is not necessary for the logic between the two textboxes.
Hi Everyone, In my form there is a "Validating" event on a textbox. Is there a way to not execute the "Validating" event when the user clicks on the "Cancel" button?
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