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POOverride ActionFilter attribute is no working in ASP.NET Web APi 2
 

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  1. POOverride ActionFilter attribute is no working in ASP.NET Web APi 2
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    <p>I'm using ASP.NET WEB API 2 to migrate an existing web service.</p> <p>Below is set of filter that I use</p> <pre><code>public class ValidateSession : ActionFilterAttribute { public override void OnActionExecuting(System.Web.Http.Controllers.HttpActionContext actionContext) { //var requestMessage = actionContext.Request.Content.ToString(); if (!actionContext.Request.Headers.Contains("source")) { actionContext.Request.Headers.Add("source", "1"); } if (!actionContext.Request.Headers.Contains("appstore_session_id")) { actionContext.Response = actionContext.Request.CreateErrorResponse(System.Net.HttpStatusCode.BadRequest, "Session id is not included in the header"); } } } </code></pre> <p>Below is the code for override the previous ActionFilter attribute</p> <pre><code>public class OverrideSessionValidation : ActionFilterAttribute, IOverrideFilter { public Type FiltersToOverride { get { return typeof(ValidateSession); } } public bool AllowMultiple { get { return true; } } } </code></pre> <p>The code for controller is also give below</p> <pre><code>[ValidateSession] public class SampleController : ApiController { public string GetSessionValues() { return "from session vals"; } [OverrideSessionValidation] public string GetDefaultVals() { return "from DefVals"; } } </code></pre> <p>It can be seen that I have placed the validate session at the class level and for one method I want to override the same. Hence for the second method I used overrideSessionValidation. Though the </p> <p>FiltersToOverride of OverrideSessionValidation is called, I see that onActionExcuting for ValidateSession is also called. I expect that the class filter onActionExecuting should not be called as I have Override for the same.</p> <p>Please let me know what is the error so that I can solve this problem</p> <p>Thanks and regards Venkatesh</p>
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    1. USVenkatesh
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    1. COPossibly you are overriding wrong action attribute. I suspect you override the one from `System.Web.Mvc` but the correct one is in `System.Web.Http.Filters`.
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      1. POOverride ActionFilter attribute is no working in ASP.NET Web APi 2
      1. USWiktor Zychla
    2. CONo Since I have created ASP.NET MVC 2 EMPTY WEB API project I do not have references of MVC at all. I'm 100% Sure that I'm using only System.Web.Http.Filters
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      1. POOverride ActionFilter attribute is no working in ASP.NET Web APi 2
      1. USVenkatesh
 

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