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Home/ Questions/Q 181689
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Asked: May 11, 20262026-05-11T14:48:29+00:00 2026-05-11T14:48:29+00:00

In asp.net, I need to add a validator to a textbox that forces the

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In asp.net, I need to add a validator to a textbox that forces the input to be numbers.

Is this built in?

I have already added a required field validator to the textbox.

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  1. 2026-05-11T14:48:29+00:00Added an answer on May 11, 2026 at 2:48 pm
    <asp:RegularExpressionValidator runat='server'             ControlToValidate='numbersOnlyTextBox'              ErrorMessage='Enter only numeric characters.'              ValidationExpression='^\\d+$' /> 
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