Question 78608 in Flutter Question posted in
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Limit TextField can input letter and spacing only – Flutter

How can I limit the TextField can only input letter and spacing?

I had try:

TextField(
  inputFormatters: [
    RegexFormatter(regex: '[A-Za-z]+'),
  ],
),

But it not work.

Tags:

5

Answers


  1. 0

    Try this,

    TextField(
  inputFormatters: [
    FilteringTextInputFormatter.allow(RegExp("[a-zA-Z ]")),
    // This will allow only characters and space
  ],
),

    enter image description here

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  2. 0

    Try this:

    inputFormatters: [ FilteringTextInputFormatter.allow(RegExp("[a-zA-Z]")), ]

    For further understanding please refer
    Restrict Special Character Input Flutter

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  3. 0

    Refer below code

     TextField(
        inputFormatters: [
          FilteringTextInputFormatter.allow(
            RegExp("[a-zA-Z0-9 ]"),
          ),
          LengthLimitingTextInputFormatter(10),//for limit of max length
        ],
       ),
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  4. 0

    Try this Regexp

    RegexFormatter(regex: '/^[a-zA-Zs]*$/'),
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  5. 0

    Either of the 2 works.

    inputFormatters: <TextInputFormatter>[
   FilteringTextInputFormatter.allow(
      RegExp(r"[a-zA-Zs]"),
   )
]

    or

    inputFormatters: <TextInputFormatter>[
   FilteringTextInputFormatter.allow(
      RegExp(r"[a-zA-Z ]"),
   )
]
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