In this screencast Mohammad Azam will demonstrate how to inject client side script to your custom server control. Azam will demonstrate how to attach the onFocus and onBlur events of the TextBox control to fire the custom JavaScript functions.

In this screencast Mohammad Azam will demonstrate how to inject client side script to your custom server control. Azam will demonstrate how to attach the onFocus and onBlur events of the TextBox control to fire the custom JavaScript functions.

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References:

Custom RequiredTextBox With RegularExpressionValidator

Building RequiredTextBox Custom Server Control