RegularExpressionValidator QML Type

Provides a string validator. 更多...

导入语句：	import QtQuick 2.15
Since:	Qt 5.14
实例化：	QRegularExpressionValidator

特性

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

regularExpression : regularExpression

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 RegularExpressionValidator specified:

TextInput {
    id: hexNumber
    validator: RegularExpressionValidator { regularExpression: /[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})?$/
							
```