C# .NET Uploading file to a web form using HttpWebRequest

问题

Does anyone have a working example using HttpWebRequest in C# to submit a file from the local drive to a multipart/form-data web form?

回答1:

it is WAY easier to do this with WebClient

string url = "http://myserver/myapp/upload.aspx";
string file = "c:\\files\\test.jpg";
WebClient wc = new WebClient();
wc.UploadFile(url,"post",file);

If it needs to be httpwebrequest I can put something together for you (it is possible), but it will be more like 50 lines then 5

来源：https://stackoverflow.com/questions/342453/c-sharp-net-uploading-file-to-a-web-form-using-httpwebrequest