asp.net – 在vb.net Webapi项目中缺少request.CreateResponse

我提出了以下解决方案：

>创建调用原始CreateResponse方法的扩展方法CreateResponse2
>在您的控制器中,调用新的自定义方法(Request.CreateResponse2(…))

以下是我的解决方案：

创建一个新模块HttpRequestMessageExtensions

Imports System.Net
 Imports System.Net.Http
 Imports System.Web
 Imports System.Runtime.CompilerServices
 Imports System.Web.Http

 Public Module HttpRequestMessageExtensions

     <Extension()> _
     Public Function CreateResponse2(Of T)(ByVal request As HttpRequestMessage,statusCode As HttpStatusCode,value As T) As HttpResponseMessage
         Return request.CreateResponse(Of T)(statusCode,value)
     End Function

     <Extension()> _
     Public Function CreateResponse2(Of T)(ByVal request As HttpRequestMessage,value As T,Configuration As HttpConfiguration) As HttpResponseMessage
         Return request.CreateResponse(Of T)(statusCode,value,Configuration)
     End Function

     <Extension()> _
     Public Function CreateResponse2(Of T)(ByVal request As HttpRequestMessage,mediaType As String) As HttpResponseMessage
         Return request.CreateResponse(Of T)(statusCode,mediaType)
     End Function

     <Extension()> _
     Public Function CreateResponse2(Of T)(ByVal request As HttpRequestMessage,formatter As Formatting.MediaTypeFormatter) As HttpResponseMessage
         Return request.CreateResponse(Of T)(statusCode,formatter)
     End Function

     <Extension()> _
     Public Function CreateResponse2(Of T)(ByVal request As HttpRequestMessage,mediaType As Headers.MediaTypeHeaderValue) As HttpResponseMessage
         Return request.CreateResponse(Of T)(statusCode,formatter As Formatting.MediaTypeFormatter,formatter,mediaType)
     End Function

 End Module

控制器中的用法：

Return Request.CreateResponse2(Of SomeClass)(HttpStatusCode.BadRequest,objSomeClass)

截图：