Getting Started

This article will guide you through the steps needed to add a basic RadMaskedInput control in your application and will provide information regarding the most important properties of the control.

1. Setting up the app

Take a look at these articles and follow the instructions to setup your app:

2. Adding the required Telerik references

You have two options:

  • Add the Telerik UI for Xamarin Nuget packages following the instructions in Telerik NuGet package server topic.

  • Add the references to Telerik assemblies manually, check the list below with the required assemblies for RadMaskedInput component:

Platform Assemblies
Portable Telerik.XamarinForms.Common.dll
Android Telerik.Xamarin.Android.Common.dll
iOS Telerik.Xamarin.iOS.dll
UWP Telerik.Core.dll

3. Adding RadMaskedInput control

If your app is setup, you are ready to add a RadMaskedInput control.

The RadMaskedInput control exposes a MaskType property which can be either "Text" or "Regex". It controls the type of the validation. If you choose to use a Text type, the Mask of the control should be set by utilizing the Mask Tokens. In case you decide to use a Regex for validating the input, you should set such to the Mask property as demonstrated in the RegEx Vaidation topic.

Here is an example how to add RadMaskedInput control with Text MaskType:

<telerikInput:RadMaskedInput x:Name="maskedInput"
                             Mask="(CC) 00"

In addition to this you need to add the following namespace:

using Telerik.XamarinForms.Input;

This is the result: Getting started

4. Important Properties

The RadMaskedInput control exposes the following properties which you can configure:

Mask-related properties:

  • MaskType(MaskType): Used to set the validation type of the RadMaskedInput. You can set it to either Text (for Tokens validation) or Regex (for RegEx validation).
  • Mask(string): You should use this property to set the Mask of the control. It is of type string. In case of using Text validation, you should use the available Mask Tokens. Otherwise, a regular expression should be set.
  • IsMaskFull(bool): Gets a value indicating if all required symbols are filled. The default value is true. Can be false only when required symbols tokens are present in the mask. (ReadOnly)
  • InputValue(string): Gets or sets the whole input value.
  • IsInputAccepted(bool): Gets a value indicating whether the input matches the mask.(ReadOnly)

Appearance-related properties:

  • WatermarkText: Gets or sets the text used as watermark.
  • WatermarkTextColor: Gets or sets the color of the text of the watermark.
  • DisplayedText: Gets the displayed text.(Read-only)
  • DisplayedTextColor: Gets or sets the color of the displayed text.
  • DisplayedTextFont: Gets or sets the font of the displayed text
  • DisplayedTextFontSize: Gets or sets the size of the font used for the displayed text.
  • BorderStyle: Gets or sets a BorderStyle object that is used to define the border of the MaskedInput.
  • Placeholder: Gets or sets the symbol that will be used to mark an empty position. The default value is '_'.

Validation-related properties:

  • InvalidInputErrorText: Gets or sets the text that is shown as error message on invalid input
  • ErrorColor: Gets or sets the color of the error text.
  • ErrorFontSize: Gets or sets the font size of the error text.
  • RejectedSymbolErrorText: Gets or sets the error text when a symbol was rejected.
  • IsErrorTextVisible(bool): Gets a value indicating whether the error text is visible. (ReadOnly)

SDK Browser and QSF applications contain different examples that show RadMaskedInput's main features. You can find the applications in the Examples and QSF folders of your local Telerik UI for Xamarin installation.

See Also

In this article
Not finding the help you need? Improve this article