如何将提交的图像转换为流？

Question

我发布了一张图片。 和接受，在我的控制器

var image=Request.Files["hiddenUploadButton"]; 

现在我想将我的图像流。怎么做？

Answer 1

var stream = Request.Files["hiddenUploadButton"].InputStream; 

请参阅this link。

也许你想要做点像this？

Answer 2

if you want to save file try following code snippet 

HttpPostedFile file = Request.Files["myFile"]; 

    //check file was submitted 
    if (file != null && file.ContentLength > 0) 
    { 
     string fname = Path.GetFileName(file.FileName); 
     file.SaveAs(Server.MapPath(Path.Combine("~/App_Data/", fname))); 
    } 

如何转换成流，

 HttpPostedFile file = Request.Files["myFile"]; 
var FileLen = file .ContentLength; 
    byte[] input = new byte[FileLen]; 
    System.IO.Stream MyStream; 
    // Initialize the stream. 
    MyStream = file .InputStream; 

    // Read the file into the byte array. 
    MyStream.Read(input, 0, FileLen);