How to upload multiple files in wpf using web client class

mounika madhavaram

8y3.5k

Hi I want to upload multiple files in wpf using web client class....

this is my xaml design and code

private void btnOpenFiles_Click(object sender, RoutedEventArgs e)

{

OpenFileDialog openFileDialog = new OpenFileDialog();

openFileDialog.Multiselect = true;

openFileDialog.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*";

openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);

if (openFileDialog.ShowDialog() == true)

{

foreach (string filename in openFileDialog.FileNames)

lbFiles.Items.Add(System.IO.Path.GetFileName(filename));

}

this is xaml design

am able to select multiple files...again how to send all the selected files to the server .

Thanks in Advance

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

mounika madhavaram8y ago
private void UploadDocuments(ObservableCollection Documents)

{
HttpRequestMessage message = new HttpRequestMessage();

MultipartFormDataContent content = new MultipartFormDataContent();
content.Add(new StringContent(JsonConvert.SerializeObject(Documents)), "seriliazedContent");
foreach (var item in Documents)
{
FileStream filestream = new FileStream(item.Path, FileMode.Open, FileAccess.Read);
content.Add(new StreamContent(filestream), "file", item.OriginalFileName);
}
message.Method = HttpMethod.Post;
message.Content = content;
message.RequestUri = new Uri(ProHelper.GetProMoveServer() + "api/Utility/uploaddocuments");
var client = HttpClientFactory.Create();
client.SendAsync(message).ContinueWith(task =>
{
var response = task.Result.Content.ReadAsStringAsync();
var json = JsonConvert.DeserializeObject>(response.Result);

});
}
how to use web client in this method to upload files
Amit Gupta8y ago
There is a method called UploadFile(...) in webclient object, you can use it to do the same