Mvc Validation Error Message
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Mvc Custom Validation Attribute Error Message
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Validation Message In Mvc
Sign up How to change the ErrorMessage for int model validation in ASP.NET MVC? up vote 20 down vote favorite 8 I have a model with a property defined like this: [Required(ErrorMessage="Please enter how many Stream Entries are displayed per page.")] [Range(0,250, ErrorMessage="Please enter a number between 0 and 250.")] [Column] public int StreamEntriesPerPage { get; set; } This works unless the validationmessage mvc user enters something like "100q". Then a rather ugly error is displayed that says "The value '100q' is not valid for StreamEntriesPerPage." Is there an attribute I can use to override the default error message when input is not an int? c# asp.net-mvc validation share|improve this question asked Jul 5 '11 at 19:26 quakkels 4,4571757125 add a comment| 4 Answers 4 active oldest votes up vote 14 down vote accepted Yes, you can use Data annotations extensions, mark your property as the following: [Required(ErrorMessage = "Please enter how many Stream Entries are displayed per page.")] [Range(0, 250, ErrorMessage = "Please enter a number between 0 and 250.")] [Column] [DataAnnotationsExtensions.Integer(ErrorMessage = "Please enter a valid number.")] public int StreamEntriesPerPage { get; set; } share|improve this answer edited Jul 20 '11 at 3:50 Jalal Said 11.3k22853 answered Jul 5 '11 at 19:31 Feras Kayyali 42735 17 Not a fan of using third party software for such a small thing. –quakkels Jul 5 '11 at 19:57 add a comment| up vote 8 down vote Try adding [RegularExpression("\\d+", ErrorMessage = "some message here")] Reference blog post share|improve thi
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Mvc Custom Validation Message
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Model Binding Create Edit View Validation ValidationMessage ValidationMessageFor ValidationSummary Layout View Create Layout View Partial @html.validationmessage example View ViewBag ViewData TempData Filters ActionFilters Bundling ScriptBundle StyleBundle Area Useful Resources Next » « Previous ValidationMessageFor: The Html.ValidationMessageFor() is a strongly typed extension method. http://stackoverflow.com/questions/6587816/how-to-change-the-errormessage-for-int-model-validation-in-asp-net-mvc It displays a validation message if an error exists for the specified field in the ModelStateDictionary object. ValidationMessageFor() Signature: MvcHtmlString ValidateMessage(Expression
@Html.ValidationMessageFor(m => m.StudentName, "", new { @class = "text-danger" }) In the above example, the first parameter in ValidationMessageFor method is a lambda expression to specify a property for which we want to show the error message. The second parameter is for custom error message and the third parameter is for html attributes like css, style etc. The ValidationMessageFor() method will only display an error if you have configured DataAnnotations attribute to the specifed property in the model class. The following example is a Student model class where the DataAnnotations attribute "Required" is applied to the StudentName property. Example: Student Model public class Student { public int StudentId { get; set; } [Required] public string StudentName { get; set; } public int Age { get; set; } } Th
AND the html outputted to the client. This two-part article will attempt to cover all common validation scenarios and introduce all the new MVC3 validation features along the way. We will provide detailed http://www.devtrends.co.uk/blog/the-complete-guide-to-validation-in-asp.net-mvc-3-part-1 explanations as well as full code examples that you can adapt for your own needs. In part one of the article we will give an overview of validation in ASP.NET MVC 3. We will look at the built-in validators including the new CompareAttribute and RemoteAttribute and see what has changed from MVC 2, particularly on the client-side. In Part Two, we will write several custom validators that include both client and server-side validation. We error message will also look at an alternative to using data annotations - the IValidatableObject interface. So let's get started... Setting up Visual Studio We will be adding all code to the 'Internet Application' template that comes with ASP.NET MVC 3, so if you wish to follow along you, just open up Visual Studio, select new ASP.NET MVC 3 Web Application and pick the Internet Application template when prompted. Figure 1: The Visual Studio 2010 New mvc custom validation Project Dialog Figure 2: The Visual Studio 2010 New ASP.NET MVC3 Internet Application Template If you look at solution explorer, you will find a skeleton application with two controllers and a single file in the Models folder (AccountModels.cs) containing all view models. Open up this file, expand the Models region and you will find three models for registration, logon and change password. All examples in this article will revolve around the registration process and thus use the RegisterModel class. Figure 3: Initial Solution Explorer for Internet Application Template Inspecting the model public class RegisterModel { [Required] [Display(Name = "User name")] public string UserName { get; set; } [Required] [DataType(DataType.EmailAddress)] [Display(Name = "Email address")] public string Email { get; set; } [Required] [ValidatePasswordLength] [DataType(DataType.Password)] [Display(Name = "Password")] public string Password { get; set; } [DataType(DataType.Password)] [Display(Name = "Confirm password")] [Compare("Password", ErrorMessage = "The password and confirmation do not match.")] public string ConfirmPassword { get; set; } } If you take a look at this model, you will find four properties decorated with a number of attributes. If you have worked with ASP.NET MVC version 2, you will probably recognise many of these as System.ComponentModel.DataAnnotations attributes. Some of these are used to affect appearance such as [Display] and [DataType]. The remaining attributes are used for validation. In the RegisterModel, three distinct validati