UploadDataCompletedEventArgs Class
Definition
Provides data for the UploadDataCompleted event.
public ref class UploadDataCompletedEventArgs : System::ComponentModel::AsyncCompletedEventArgs
public class UploadDataCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs
type UploadDataCompletedEventArgs = class
inherit AsyncCompletedEventArgs
Public Class UploadDataCompletedEventArgs
Inherits AsyncCompletedEventArgs
- Inheritance
Examples
The following code example demonstrates asynchronously uploading data.
void UploadDataInBackground2( String^ address )
{
WebClient^ client = gcnew WebClient;
Uri ^uri = gcnew Uri(address);
String^ text = "Time = 12:00am temperature = 50";
array<Byte>^data = System::Text::Encoding::UTF8->GetBytes( text );
String^ method = "POST";
client->UploadDataCompleted += gcnew UploadDataCompletedEventHandler( UploadDataCallback2 );
client->UploadDataAsync( uri, method, data );
}
public static void UploadDataInBackground2(string address)
{
WebClient client = new WebClient();
Uri uri = new Uri(address);
string text = "Time = 12:00am temperature = 50";
byte[] data = System.Text.Encoding.UTF8.GetBytes(text);
string method = "POST";
client.UploadDataCompleted += new UploadDataCompletedEventHandler(UploadDataCallback2);
client.UploadDataAsync(uri, method, data);
}
Public Shared Sub UploadDataInBackground2(ByVal address As String)
Dim client As WebClient = New WebClient()
Dim text As String = "Time = 12:00am temperature = 50"
Dim data() As Byte = System.Text.Encoding.UTF8.GetBytes(text)
Dim method As String = "POST"
AddHandler client.UploadDataCompleted, AddressOf UploadDataCallback2
Dim uri as Uri = New Uri(address)
client.UploadDataAsync(uri, method, data)
End Sub
The following method is called when the upload completes.
void UploadDataCallback2( Object^ /*sender*/, UploadDataCompletedEventArgs^ e )
{
array<Byte>^data = dynamic_cast<array<Byte>^>(e->Result);
String^ reply = System::Text::Encoding::UTF8->GetString( data );
Console::WriteLine( reply );
}
private static void UploadDataCallback2(Object sender, UploadDataCompletedEventArgs e)
{
byte[] data = (byte[])e.Result;
string reply = System.Text.Encoding.UTF8.GetString(data);
Console.WriteLine(reply);
}
Private Shared Sub UploadDataCallback2(ByVal sender As Object, ByVal e As UploadDataCompletedEventArgs)
Dim data() As Byte = CType(e.Result, Byte())
Dim reply As String = System.Text.Encoding.UTF8.GetString(data)
Console.WriteLine(reply)
End Sub
Remarks
Instances of this class are passed to the UploadDataCompletedEventHandler.
Properties
Cancelled |
Gets a value indicating whether an asynchronous operation has been canceled. (Inherited from AsyncCompletedEventArgs) |
Error |
Gets a value indicating which error occurred during an asynchronous operation. (Inherited from AsyncCompletedEventArgs) |
Result |
Gets the server reply to a data upload operation started by calling an UploadDataAsync method. |
UserState |
Gets the unique identifier for the asynchronous task. (Inherited from AsyncCompletedEventArgs) |
Methods
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
RaiseExceptionIfNecessary() |
Raises a user-supplied exception if an asynchronous operation failed. (Inherited from AsyncCompletedEventArgs) |
ToString() |
Returns a string that represents the current object. (Inherited from Object) |