Alpha. Numeric Text. Box Validation Alphabets and Numbers characters using Data Annotations in ASP. Review developer and enduser documentation on DevExpress products online help resources, printable PDF downloads, and more. Next up in our ASP. NET Core Demystified series, we will discuss and demo a whole bunch of classes which implement the IActionResult interface and inherit from the. How to build a multilanguage Web Application while adopting the ASP. NET MVC pattern using resource files, Route Mapping and Global Filters. ASP. NET MVC Tutorial Free Beginner and Advanced Tutorials, Articles, Projects and Source Code for Software Developers, Professionals and Architects. This topic provides links to documentation resources about ASP. NET MVC 5. If you know a great blog post, stackoverflow thread or any other link that would be. Top Gear Complete 19. Razor Pages is a new feature of ASP. NET Core MVC that makes coding pagefocused scenarios easier and more productive. One of new features of ASP. NET Core 2. 0 is. Tour Start here for a quick overview of the site Help Center Detailed answers to any. Download content for Azure, ASP. NET, Office, SQL Server, SharePoint Server and other Microsoft technologies in ebook formats. Reference, guide, and stepbystep. Net MVCIn this article I will explain with an example, how to perform Alpha. Numeric Text. Box Validation i. Alphabet and Number characters validation on Client Side using Data Annotations and j. Query in ASP. Net MVC Razor. Asp.Net Mvc 4 Razor Tutorial Pdf' title='Asp.Net Mvc 4 Razor Tutorial Pdf' />The Client Side Alpha. Numeric Text. Box Validation i. Upper Case and Lower Case Alphabet and Number Digits characters validation will be performed using Model class and Data Annotation attributes. Configuring Bundles and enabling Client Side Validation. Please refer the following article for complete information on how to configure Bundles and enable Client Side validation in ASP. Net MVC project. Note By default the validation done using Data Annotation attributes is Server Side. And hence to make it work Client Side, the Client Side validation must be enabled. Model. The following Model class consists of one property User. Name to which the following validation Data Annotation attributes have been applied. Required Data Annotation attribute. Regular. Expression Data Annotation attribute. The Regular. Expression Data Annotation attribute accepts the Regular Expression as first parameter. The Regular expression will allow only Upper Case and Lower Case Alphabets and Numbers Digits. The Required Data Annotation and the Regular. Expression Data Annotation attributes have been specified with a property Error Message with a string value. As the name suggests, this string value will be displayed to the user when the respective validation fails. Person. Model    DisplayName Username    RequiredError. Message Username is required. Regular. Expressiona z. A Z0 9, Error. Message Only Alphabets and Numbers allowed. User. Name get set Controller. The Controller consists of two Action methods. Action method for handling GET operation. Inside this Action method, simply the View is returned. Action method for handling POST operation. This action method handles the POST operation and when the form is submitted, the object of the Person. Model class is sent to this method. Home. Controller Controller    GET Home    public. Action. Result Index            return View        Http. Post    public. Action. Result IndexPerson. Model person            return View    View. Inside the View, in the very first line the Person. Modelclass is declared as Model for the View. The View consists of an HTML Form which has been created using the Html. Begin. Form method with the following parameters. Action. Name Name of the Action. In this case the name is Index. Controller. Name Name of the Controller. In this case the name is Home. Form. Method It specifies the Form Method i. GET or POST. In this case it will be set to POST. Inside the View, the following three HTML Helper functions are used 1. Html. Label. For Displaying the Model property name. Html. Text. Box. For Creating a Text. Box for the Model property. Html. Validation. Message. For Displaying the Validation message for the property. There is also Submit button which when clicked, the Form gets submitted. The j. Query and the j. Query Validation script bundles are rendered at the end of the Model using the Scripts. Render function. model. AlphanumericValidationMVC. Models. Person. Model    Layout null lt DOCTYPEhtml lt html lt head    lt metanameviewportcontentwidthdevice width    lt title Indexlt title    lt styletypetextcss        body             font family Arial            font size 1. Html. Begin. FormIndex, Home, Form. Method. Post            lt table            lt tr                lt td Html. Label. Form m. User. Namelt td                lt td Html. Text. Box. Form m. User. Namelt td                lt td Html. Validation. Message. Form m. User. Name, new class error lt td            lt tr            lt tr                lt td lt td                lt td lt inputtypesubmitvalueSubmit lt td                lt td lt td            lt tr        lt table    lt body Scripts. RenderbundlesjqueryScripts. Renderbundlesjqueryvallt html Screenshot.