Validating textbox c

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To select a range of text in the text box, you can use the Select method.

Optionally, invalidates the child controls assigned to the control.(Inherited from Control.)Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.(Inherited from Control.)Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

(34 printed pages) Introduction Looking at Validation The Required Field Validator Control The Compare Validator Control The Range Validator Control The Regular Expression Validator Control The Custom Validator Control The Validation Summary Control Conclusion In your studies of ASP.

NET, you might have been introduced to a number of different types of controls, whether HTML server controls or Web server controls.

Note also that the user can leave a field if it doesn’t have a This entry was posted in controls and tagged C#, C# programming, controls, example, example program, validate field, validate form, Validating event, Windows Forms programming.

By Bill Evjen Reuters December 2003 Applies to: Microsoft® ASP. NET validation server controls that are at your disposal.

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