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Home/ Questions/Q 7854107
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Editorial Team
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Editorial Team
Asked: June 2, 20262026-06-02T19:56:07+00:00 2026-06-02T19:56:07+00:00

I have a Textbox and the following code to allow only numbers: textBox1.Text =

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I have a Textbox and the following code to allow only numbers:

textBox1.Text = Regex.Replace(textBox1.Text, "[^\\d]", "");

Now when I type another key than numbers, the focus goes to the beginning of the Textbox…What do I need to not let this happen?

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  1. Editorial Team
    Editorial Team
    2026-06-02T19:56:11+00:00Added an answer on June 2, 2026 at 7:56 pm

    Use MaskedTextBox instead, specifying the Mask property.

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