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POCustom Validation : get the property name from validationContext
 

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    <p>For my ASP.NET MVC projects, I created a custom validation attribute. Here is the code I am struggling with :</p> <pre><code> protected override ValidationResult IsValid(object value, ValidationContext validationContext) { //Here I need to resolve the url in order to make a call to that controller action and get the JSON result back var httpContext = new HttpContextWrapper(HttpContext.Current); var urlHelper = new UrlHelper( new System.Web.Routing.RequestContext( httpContext, new System.Web.Routing.RouteData() ) ); var url = urlHelper.Action(Action, Controller, null, urlHelper.RequestContext.HttpContext.Request.Url.Scheme); var fullUrl = string.Format("{0}?{1}={2}", url, /*validationContext.MemberName*/"term", value); if (!GetResult(fullUrl)) { var message = FormatErrorMessage(validationContext.DisplayName); return new ValidationResult(message); } return null; } </code></pre> <p>You can see the full code from below link :</p> <p><a href="https://bitbucket.org/tugberk/tugberkug.mvc/src/6cc3d3d64721/TugberkUg.MVC/Validation/ServerSideRemoteAttribute.cs" rel="nofollow">https://bitbucket.org/tugberk/tugberkug.mvc/src/6cc3d3d64721/TugberkUg.MVC/Validation/ServerSideRemoteAttribute.cs</a></p> <p>For the <code>fullUrl</code> variable, I am trying to append the property name to querystring but when I use <code>validationContext.MemberName</code>, I am failing. I solved the problem with a temp fix by making it static as "term" but it is not a fix at all. </p> <p>So, what is the way of retrieving property name from <code>validationContext</code>?</p>
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    1. COI have the same problem. I even want to go further and get all the CustomAttributes for the property being validated. Sadly the validationContext doesn't contain any useable properties/methods to get this information.
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      1. USPeter
    2. COThis is answered here with more details: http://stackoverflow.com/questions/7447932/mvc-3-model-validation-issue-oversight-or-by-design
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      1. USMichael Sander
 

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