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This increases performance and reduces traffic over the Web.
You can use it to make sure that the user has entered something in a Text Box control.
You do not have to disable the Form’s Auto Validate property.
However, I prefer to call it explicitly and handle all validation at once since you most likely will take action only if the entire control’s children pass validation. The most important thing to recognize here is how precise you can be with the validation error message in the error provider.
The server side validation routine must be called from the control's Server Validate event handler. The basic syntax for the control is as given: The Validation Summary control does not perform any validation but shows a summary of all errors in the page.
The server side validation routine should be written in any . The summary displays the values of the Error Message property of all validation controls that failed validation.