The Telerik UI for Blazor MaskedTextBox component is a text input control with the ability to validate a variety of text data like phone numbers, post codes, personal document numbers (e.g. passport IDs), credit card numbers. In addition to the common input masks you can define specific ones such as company-specific productid, employed etc.
The Mask of the MaskedTextBox is what defines what user input is allowed – the length of the input, the type of characters (e.g. a letter, a digit, etc.) and at what position. For example, the mask “0000-0000-0000-0000” limits inputs only to credit card numbers. The Prompt of the MaskedTextBox is the placeholder value displayed in the control to hint the user at expected type of input. The Prompt can be customized in a way very similar to the mask. Visit the MaskedTextBox docs on how the Mask and Prompt works.
Similarly, to the other text input components in our suite, the MaskedTextBox’s labels can be placed on top of the element statically, or as floating labels which initially appear as placeholder text and then are raised up over the element.
Explore the Blazor MaskedTextBox labels
Validation modes are available with the MaskedTextBox component, which helps you choose whether validation is triggered on change, blur or typing events, allowing you to apply the option best suited for your needs.See Blazor MaskedTextBox validation examples.
The two standard OnChange and ValueChanged are exposed by the MaskedTextBox Component:
The Telerik UI for Blazor MaskedTextBox has several built-in themes such as Default (our own styling), Material (based on the Material Design guidelines), Bootstrap (which looks like the Bootstrap styling to integrate better) and Fluent (based on Microsoft Fluent UI). You can easily customize any of out-of-the-box themes with a few lines of CSS, or create new theme to match your colors and branding by using the Telerik SASS ThemeBuilder application.
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