Validating event of textbox in c
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.
It's just that all controls have Causes Validation by default set to true.
This is just a brainstorming idea, you'd have to play with it to see if it would work.
Capture the mousedown event, then see if the click is in the location of one of the controls your allowing it to move to.
Net, you can drag and drop the control from the toolbox. Please refer to the code listing provided at the end of the article.
Invoking the Set Error method of the Error Provider control displays an error indicator image next to the control specified as the first argument to the the Set Error method.
"Bruce Wood" schreef in bericht news:email@example.com .. 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). You are absolutely right: the two text boxes with Causes Validation set to False never validate. It goes against everything I've read about validation, but then I've never tried setting Causes Validation to false on a text box before, just on buttons.
This is the code that works for me: private void text Box1_Enter(object sender, System.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.Only if he clicks on another specific control he is allowed to leave the textbox without entering the right information.First, add the following code to the Form’s constructor after the Initialize Component method: This is a handy trick to prevent implicit validation of our controls when they lose focus.You do not have to disable the Form’s Auto Validate property.