Validating event in c

Length Hello to all I'm handling the Validating event for one text box. If something is wrong in user input I show a warning message. Cancel=true] to method the message is displayed twice (event fired twice).

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I want to stop the user moving from Text Box if enter some invalid data. Cancel=true then user can't move to other control until enter valid data. Dan "Mona" Hi Dan, Ensure that the focus is set to some other control when moving off text box control. Length Hello to all I'm handling the Validating event for one text box. If something is wrong in user input I show a warning message. Cancel=true] to method the message is displayed twice (event fired twice). When validation occurs, the validation criteria as defined by the Validation Settings object associated with the control/editor being validated is evaluated.Whether the validation succeeds or fails, the Validating event fires immediately upon determining whether the value is valid. When the text in the txt Code control be more than 5 chars, the messagebox will show only once. Length See this private void txt Code_Validating(object sender, System. When the text in the txt Code control be more than 5 chars, the messagebox will show only once.

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