试图上传文件的MVC问题

我已经使用此代码来上传带有MVC的文件。试图上传文件的MVC问题

<form method="post" enctype="multipart/form-data" action="/Task/SaveFile"> 
<input type="file" id="FileBlob" name="FileBlob"/> 
<input type="submit" value="Save"/> 
<input type="button" value="Cancel" onclick="window.location.href='/'" /> 
</form>

但是，当询问形式[“FileBlob”]是空当我浏览一个文件，并提交表单????

马尔科姆

编辑：我添加了一个文本框的形式，我可以得到该值的罚款。只是输入类型文件不工作？

bool errors = false; 
    //this field is never empty, it contains the selected filename 
    if (string.IsNullOrEmpty(forms["FileBlob"])) 
    { 
     errors = true; 
     ModelState.AddModelError("FileBlob", "Please upload a file"); 
    } 
    else 
    { 
     string sFileName = forms["FileBlob"]; 
     var file = Request.Files["FileBlob"]; 
     //'file' is always null, and Request.Files.Count is always 0 ??? 
     if (file != null) 
     { 
     byte[] buf = new byte[file.ContentLength]; 
     file.InputStream.Read(buf, 0, file.ContentLength); 
     //do stuff with the bytes 
     } 
     else 
     { 
     errors = true; 
     ModelState.AddModelError("FileBlob", "Please upload a file"); 
     } 
    } 
    if (errors) 
    { 
     return ShowTheFormAgainResult(); 
    } 
    else 
    { 
     return View(); 
    } 
}

来源

2009-04-17 Malcolm