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Home/ Questions/Q 6767141
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Editorial Team
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Editorial Team
Asked: May 26, 20262026-05-26T14:54:58+00:00 2026-05-26T14:54:58+00:00

How in qt constrain what can be typed in lineedit? I would i.e. want

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How in qt constrain what can be typed in lineedit? I would i.e. want user to enter just digits but not letters.

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  1. Editorial Team
    Editorial Team
    2026-05-26T14:54:58+00:00Added an answer on May 26, 2026 at 2:54 pm

    Check the setValidator function and the inputMask property. If you need something more complex than just numbers it is very easy to subclass QValidator and use it.

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