Getting Started with ASP.NET MVC NumericTextBox Control

30 May 20224 minutes to read

This section briefly explains about how to include ASP.NET MVC NumericTextBox control in your ASP.NET MVC application using Visual Studio.

Prerequisites

System requirements for ASP.NET MVC controls

Create ASP.NET MVC application with HTML helper

Install ASP.NET MVC package in the application

Syncfusion ASP.NET MVC controls are available in nuget.org. Refer to NuGet packages topic to learn more about installing NuGet packages in various OS environments. To add ASP.NET MVC controls in the application, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search for Syncfusion.EJ2.MVC5 and then install it.

The Syncfusion.EJ2.MVC5 NuGet package has dependencies, Newtonsoft.Json for JSON serialization and Syncfusion.Licensing for validating Syncfusion license key.

If you create ASP.NET MVC application with MVC4 package, search for Syncfusion.EJ2.MVC4 and then install it.

Add namespace

Add Syncfusion.EJ2 namespace reference in Web.config under Views folder.

<namespaces>
    <add namespace="Syncfusion.EJ2"/>
</namespaces>

Add style sheet

Checkout the Themes topic to learn different ways (CDN, NPM package, and CRG) to refer styles in ASP.NET MVC application, and to have the expected appearance for Syncfusion ASP.NET MVC controls. Here, the theme is referred using CDN inside the <head> of ~/Views/Shared/_Layout.cshtml file as follows,

<head>
    ...
    <!-- Syncfusion ASP.NET MVC controls styles -->
    <link rel="stylesheet" href="https://cdn.syncfusion.com/ej2/20.1.55/fluent.css" />
</head>

Add script reference

In this getting started walk-through, the required scripts are referred using CDN inside the <head> of ~/Views/Shared/_Layout.cshtml file as follows,

<head>
    ...
    <!-- Syncfusion ASP.NET MVC controls scripts -->
    <script src="https://cdn.syncfusion.com/ej2/20.1.55/dist/ej2.min.js"></script>
</head>

Register Syncfusion Script Manager

Open ~/Views/Shared/_Layout.cshtml page and register the script manager EJS().ScriptManager() at the end of <body> in the ASP.NET MVC application as follows.

<body>
...
    <!-- Syncfusion ASP.NET MVC Script Manager -->
    @Html.EJS().ScriptManager()
</body>

Add ASP.NET MVC NumericTextBox control

Now, add the Syncfusion ASP.NET MVC NumericTextBox control in ~/Views/Home/Index.cshtml page.

@Html.EJS().NumericTextBox("numeric").Value(10).Render()

Press Ctrl+F5 (Windows) or +F5 (macOS) to run the app. Then, the Syncfusion ASP.NET MVC NumericTextBox control will be rendered in the default web browser.

ASP.NET MVC NumericTextBox Control

Range validation

You can set the minimum and maximum range of values in the NumericTextBox using the Min and Max properties, so the numeric value should be in the min and max range.

The validation behavior depends on the StrictMode property.

@Html.EJS().NumericTextBox("numeric").Value(16).Min(10).Max(20).Step(2).Render()

Formatting the value

User can set the format of the NumericTextBox control using Format property. The value will be displayed in the specified format, when the control is in focused out state. For more information about formatting the value, refer to this link.

The below example demonstrates format the value by using currency format value c2.

@Html.EJS().NumericTextBox("numeric").Format("c2").Value(10).Render()

ASP.NET MVC NumericTextBox with Format Value

Precision of numbers

You can restrict the number of decimals to be entered in the NumericTextBox by using the Decimals and ValidateDecimalOnType properties. So, you can’t enter the number whose precision is greater than the mentioned decimals.

  • If validateDecimalOnType is false, number of decimals will not be restricted. Else, number of decimals will be restricted while typing in the NumericTextBox.
<div id='container'>
    <div class='wrap'>
        @Html.EJS().NumericTextBox("strict").Format("n3").Value(10).ValidateDecimalOnType(true).Decimals(3).Placeholder("ValidateDecimalOnType Enabled").FloatLabelType(Syncfusion.EJ2.Inputs.FloatLabelType.Auto).Render()
    </div>
    <div class='wrap'>
        @Html.EJS().NumericTextBox("allow").Format("n3").Value(10).Decimals(3).Placeholder("ValidateDecimalOnType Disabled").FloatLabelType(Syncfusion.EJ2.Inputs.FloatLabelType.Auto).Render()
    </div>
</div>

Restricting Decimal Values in ASP.NET MVC NumericTextBox

View Sample in GitHub.

See also