RegExpValidator QML Type | Qt Quick 5.12.6

Qt 5.12 | Qt Quick | QML Types | RegExpValidator QML Type

Qt 5.12.6 Reference Documentation

# RegExpValidator QML Type

Provides a string validator. More...

Import Statement: | import QtQuick 2.12
Instantiates: | QRegExpValidator

- List of all members, including inherited members

## Properties

- regExp : regExp

## Detailed Description

The RegExpValidator type provides a validator, which counts as valid any string which matches a specified regular expression.

## Property Documentation

regExp : regExp

This property holds the regular expression used for validation.

Note that this property should be a regular expression in JS syntax, e.g /a/ for the regular expression matching "a".

By default, this property contains a regular expression with the pattern .* that matches any string.

Below you can find an example of a TextInput object with a RegExpValidator specified:

      TextInput {
          id: hexNumber
          validator: RegExpValidator { regExp: /[0-9A-F]+/ }
      }

Some more examples of regular expressions:

- A list of numbers with one to three positions separated by a comma:

        /\d{1,3}(?:,\d{1,3})+$/

- An amount consisting of up to 3 numbers before the decimal point, and 1 to 2 after the decimal point:

        /(\d{1,3})([.,]\d{1,2})?$/