Vb net textbox validating

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Validation server controls are a series of controls that help you validate the data that the user enters into the other controls that are provided with ASP. They determine whether the form can be processed based upon the rules that you define in the validation server controls.

One of the most common elements of Web pages is a form in which the user can input data that is posted back to the server.

One of the first steps is to understand what validating data means.Data collection on the Internet is one of its most important features, so you must make sure that the data you collect has value and meaning.You ensure this by eliminating any chance that the information collected does not abide by the rules you outline. NET don't know the difference between client-side and server-side validation.These forms are made up of different types of HTML elements that are constructed using straight HTML, HTML server controls, or Web server controls.A variety of HTML elements, such as text boxes, check boxes, radio buttons, drop-down lists and more, can be used in forms. NET applications are collecting information from a user, you want to ensure that the data that you collect is valid.NET, you might have been introduced to a number of different types of controls, whether HTML server controls or Web server controls.

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