MaskedTextBox

in namespace DotVVM.BusinessPack.Controls

Renders a TextBox control that allows to specify mask to enforce a specific value format.

Usage & Scenarios

MaskedTextBox allowes you to force users to type text exactly according to Mask. Mask will be composed from patterns and hardcoded chars. All patterns are verified against regular expression on client side and server side. You are free to use the default patterns, specify your own Patterns, or use AdditionalPatterns to mix your own patters with the default. The default patterns are:

Sample 1: Basic Usage

The Text property is binding value of input.

The Mask property expects some string input, which defines the data for the control.

The Placeholder property works as placeholder on input element.

Default Patterns

If you do not set the Patterns property, like in this example, MaskedTextBox uses the default patterns:

0 - Digit. Accepts any digit between 0 and 9.
9 - Digit or space. Accepts any digit between 0 and 9 or space.
# - Digit or space. Identical to Rule 9. In addition, allows the + (plus) and - (minus) signs.
L - Letter. Restricts the input to a-z and A-Z letters. This rule is equivalent to [a-zA-Z] in regular expressions.
? - Letter or space. Restricts the input to letters a-z and A-Z. This rule is equivalent to [a-zA-Z]|\s in regular expressions.
& - Character. Accepts any character except a space. The rule is equivalent to \S in regular expressions.
C - Character or space. Accepts any character. The rule is equivalent to . in regular expressions.
A - Alphanumeric. Accepts letters and digits only.
a - Alphanumeric or space. Accepts only letters, digits, and space.

page.dothtml
ViewModel.cs

<bp:MaskedTextBox Mask="00/00/0000"
                  Placeholder="mm/dd/yyyy"
                  Text="{value: Text}" />

using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.MaskedTextBox.sample1
{
    public class ViewModel : DotvvmViewModelBase
    {
        public string Text { get; set; }
    }
}

Sample 2: Additional Patterns

The AdditionalPatterns property expects Dictionary<char, MaskPattern>, where the key is text character and MaskPattern defines regular expressions for client and server. It appends your custom patterns to the default patterns.

page.dothtml
ViewModel.cs

 <bp:MaskedTextBox Mask="LL0-11-22"
                   Placeholder="LL0-11-22"
                   Text="{value: Text}"
                   AdditionalPatterns="{value: AdditionalPatterns}" />

using System.Collections.Generic;
using DotVVM.BusinessPack.Controls;
using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.MaskedTextBox.sample2
{
    public class ViewModel : DotvvmViewModelBase
    {
        public string Text { get; set; }

        public Dictionary<char, MaskPattern> AdditionalPatterns { get; set; } = new Dictionary<char, MaskPattern> {
            { '1', new MaskPattern("[0-1]") },
            { '2', new MaskPattern(@"\d") }
        };
    }
}

Sample 3: Custom Patterns

The Patterns property expects Dictionary<char, MaskPattern>, where the key is text character and MaskPattern defines regular expressions for client and server.

Unlike the AdditionalPatterns property, this one will replace the default patterns.

page.dothtml
ViewModel.cs

 <bp:MaskedTextBox Mask="LL0-cc-nn"
                   Placeholder="LL0-cc-nn"
                   Text="{value: Text}"
                   Patterns="{value: Patterns}" />

using System;
using DotVVM.Framework.ViewModel;

namespace DotvvmWeb.Views.Docs.Controls.businesspack.MaskedTextBox.sample3
{
    public class ViewModel : DotvvmViewModelBase
    {
        public string Text { get; set; }

        public Dictionary<char, MaskPattern> Patterns { get; set; } = new Dictionary<char, MaskPattern> {
            { 'c', new MaskPattern(@"\w") },
            { 'n', new MaskPattern(@"\d") }
        };
    }
}

Properties

Name	Type	Description	Notes	Default Value
AdditionalPatterns	Dictionary<Char,MaskPattern>	Get or set the additional patterns. Setting this property will not override the default patterns.	attribute inner element static value bindable default	null
Attributes	Dictionary<String,Object>		attribute inner element static value bindable default	null
AutoFocus	Boolean	Gets or sets whether the control should have focus when page loads or when a dialog is opened. The default value is false.	attribute inner element static value bindable default	False
ClientIDMode	ClientIDMode	Gets or sets the client ID generation algorithm.	attribute inner element static value bindable default	Static
DataContext	Object	Gets or sets a data context for the control and its children. All value and command bindings are evaluated in context of this value.	attribute inner element static value bindable default	null
Enabled	Boolean	Gets or sets a value indicating whether the control is enabled and can be modified.	attribute inner element static value bindable default	True
ID	String	Gets or sets the unique control ID.	attribute inner element static value bindable default	null
InnerText	String	Gets or sets the inner text of the HTML element.	attribute inner element static value bindable default	null
Mask	String	Get or set the mask to validate the text against.	attribute inner element static value bindable default
Patterns	Dictionary<Char,MaskPattern>	Gets or sets the patterns used to validate the Text. Setting this property will override the default patterns (CreateDefaultPatterns).	attribute inner element static value bindable default	null
Placeholder	String	Gets or sets the text displayed when the Text is empty.	attribute inner element static value bindable default	null
TabIndex	Int32	Gets or sets the order in which the control is reachable in sequential keyboard navigation. The default value is 0 which means the document order.	attribute inner element static value bindable default	0
Text	String	Get or set the text entered by user.	attribute inner element static value bindable default
Visible	Boolean	Gets or sets whether the control is visible.	attribute inner element static value bindable default	True

Events

	Name	Type	Description
	Changed	Command	Gets or sets the command that will be triggered when the text is changed.