QML TextInput: inputMask to filter float values only

Question

I'm using QtQuick 1.0 and I'd like to have TextInput element with input to get only digits and ".". To obtain only digits I use the following code :

TextInput {
    id: textInput

    anchors.centerIn : inputArea
    font.family : "Helvetica"
    font.pixelSize: textSize
    color: "black"
    maximumLength: 5
    smooth: true
    inputMask: "99999"
    readOnly: isReadOnly
}

And I'm able to input only digits. How should I extend it to get "." also ?

Dmitry · Accepted Answer · 2015-11-30 17:00:20Z

6

After several runs I came to the following solution :

TextInput {
    id: textInput

    anchors.centerIn : inputArea
    font.family : "Helvetica"
    font.pixelSize: textSize
    color: "black"
    maximumLength: 5
    smooth: true
    validator : RegExpValidator { regExp : /[0-9]+\.[0-9]+/ }
    readOnly: isReadOnly
}

answered Nov 30, 2015 at 17:00

Dmitry

2,2303 gold badges24 silver badges35 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

pooya13 · Accepted Answer · 2021-04-24 18:30:16Z

0

You could also use inputMethodHints:

TextInput {
    id: textInput
    inputMethodHints: Qt.ImhFormattedNumbersOnly
    ...
}

answered Apr 24, 2021 at 18:30

pooya13

2,8593 gold badges31 silver badges38 bronze badges

Comments

Michael · Accepted Answer · 2023-07-28 13:16:10Z

0

While you can use a RegExpValidator, the proper way to handle such situations is probably to use DoubleValidator directly.

See the documentation for more details: it also provides some feature useful when working with floating point numbers.

TextInput {
    id: textInput

    anchors.centerIn : inputArea
    font.family : "Helvetica"
    font.pixelSize: textSize
    color: "black"
    smooth: true
    validator : DoubleValidator {
      decimals: 2
      top: 99999
      bottom: -99999
    }
    readOnly: isReadOnly
}

answered Jul 28, 2023 at 13:16

Michael

1,5173 gold badges18 silver badges26 bronze badges

Collectives™ on Stack Overflow

QML TextInput: inputMask to filter float values only

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related