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POvalidating child properties of model using DataAnnotations or CustomValidation
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  1. POvalidating child properties of model using DataAnnotations or CustomValidation
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    copied!<p>i'm working on a MVC3 webapp and my Model consist of many classes that use a custom type for textual properties. for example my Product entity looks like :</p> <pre><code>public class Product { public int ProductId {get;set;} public TextRef Title {get;set;} public TextRef Description {get;set;} } </code></pre> <p>and TextRef is :</p> <pre><code>public class TextRef { public int LangId {get;set;} public string Text {get;set;} } </code></pre> <p>so in my views i'm using :</p> <pre><code>@Html.EditorFor(model =&gt; model.Title.Text) @Html.ValidationMessageFor(model =&gt; model.Title.Text) </code></pre> <p>is there a way to enable validation for these TextRef properties using DataAnnotations ?</p> <p>i didn't find any, so i have created a custom validator attribute:</p> <pre><code>public class TextRefRequiredAttribute : ValidationAttribute, IClientValidatable { public override bool IsValid(object value) { if (value is TextRef) return !string.IsNullOrEmpty(((TextRef)value).Text); else return true; } public IEnumerable&lt;ModelClientValidationRule&gt; GetClientValidationRules(ModelMetadata metadata, ControllerContext context) { var rule = new ModelClientValidationRule(); rule.ValidationType = "textref"; yield return rule; } } </code></pre> <p>now the server-side validation is working but client-side isn't. in fact the "data-val-" attributes didn't generated for their inputs.</p> <p><strong>UPDATE:</strong></p> <p>my client script is : </p> <pre><code>$.validator.addMethod("textref", function (value, element, param) { return (value != ""); }); $.validator.unobtrusive.adapters.addBool("textref"); </code></pre> <p>i also tried using FluentValidation:</p> <pre><code>public class CategoryValidator : AbstractValidator&lt;CategoryViewModel&gt; { public CategoryValidator() { RuleFor(o =&gt; o.Title.Text) .NotEmpty(); } } </code></pre> <p>but still no chance.</p> <p>thanks</p>
 

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