Regex Mask

To validate the user input as a standard (alphanumeric) user input against a regular expression, use the RegexMaskedEntry, which provides errors if the regular expression (regex) rule is not matched. The resulting value is a string.

Regex Usage
"[0-9]" a single digit
"[0-9]{1}" a single digit (required)
"[a-zA-Z]" a single letter
"[a-zA-Z]{1}" a single letter (required)
"\S" all symbols without space
"." all symbols
"[0-9a-zA-Z]" all without special symbols and space
"[0-9a-zA-Z ]" all without special symbols

The following example demonstrates how to set the RadRegexMaskedEntry:

<telerik:RadRegexMaskedEntry x:Name="regexMaskedEntry" Mask="^[a-z]$" Placeholder="^[a-z]$" AutomationId="regexMask"/>

The image below shows the end result.


For the Mask Types example, refer to the SDKBrowserMaui Demo Application.

See Also

In this article
Not finding the help you need?