MVC 3：CustomResult() 找不到合适的方法来覆盖

Question

我正在创建一个图像结果.. 但是“公共覆盖 void ExecuteResult (ControllerContext Context)”说：没有找到合适的方法来覆盖。

我的班级看起来像这样..

    public override void ExecuteResult(ControllerContext Context)
    {
        byte[] bytes;
        string contentType = GetContentTypeFromFile();

        //if there's no context, stop the processing
        if (Context == null)
        {
            throw new ArgumentNullException("context");
        }

        //check for file
        if(File.Exists(_path)){
            bytes = File.ReadAllBytes(_path);
        }
        else{
            throw new FileNotFoundException(_path);
        }


        //
        HttpResponseBase response = Context.HttpContext.Response;
        response.ContentType = contentType;

        MemoryStream imageStream = new MemoryStream(bytes);

        byte[] buffer = new byte[4096];

        while (true)
        {
            int read = imageStream.Read(buffer, 0, buffer.Length);

            if (read == 0)
                break;

            response.OutputStream.Write(buffer, 0, read);
        }

        response.End();

    }

Answer 1

你的类是ActionResult 的子类吗？请尝试以下操作：

using System.Web.Mvc;

public class ImageResult : ActionResult 
{
  public override void ExecuteResult(ControllerContext Context)
  {
    ...
  }
}