如何从控制器方法(id)到Asp.net视图显示字节数组image / png

时间:2012-07-10 05:31:22

标签: asp.net-mvc view

public ActionResult Overview(int subId, string countrycod)
{
    byte[] objByteArray =(byte[]) objResponse.Data;
    //return View();
    System.IO.MemoryStream imagestream = new System.IO.MemoryStream();
    imagestream.Write(objByteArray, 0, objByteArray.Length);
    //return new FileStreamResult(new System.IO.MemoryStream(objByteArray,true),"image/png");
    return new FileStreamResult(imagestream, "image/png");
}

1 个答案:

答案 0 :(得分:3)

您不需要内存流,可以直接返回字节数组:

public ActionResult Overview(int subId, string countrycod) 
{
    byte[] objByteArray = (byte[])objResponse.Data;
    return File(objByteArray, "image/png");
}

然后在视图中使用<img>标记,您将指向Overview控制器操作:

剃刀:

<img src="@Url.Action("Overview", "SomeController", new { subId = 123, countrycod = "en-US" })" />

的WebForms:

剃刀:

<img src="<%= Url.Action("Overview", "SomeController", new { subId = 123, countrycod = "en-US" }) %>" />