UploadDataCompletedEventArgs Class

.NET Framework (current version)

Provides data for the UploadDataCompleted event.

Namespace: System.Net
Assembly: System (in System.dll)

Inheritance Hierarchy

System::Object
System::EventArgs
System.ComponentModel::AsyncCompletedEventArgs
System.Net::UploadDataCompletedEventArgs

Syntax

C++

public ref class UploadDataCompletedEventArgs : AsyncCompletedEventArgs

Properties

	Name	Description
	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

	Name	Description
	Equals(Object^)	Determines whether the specified object is equal to the current object.(Inherited from Object.)
	Finalize()	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(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.)

Remarks

Instances of this class are passed to the UploadDataCompletedEventHandler.

Examples

The following code example demonstrates asynchronously uploading data.

C++

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 );
}

The following method is called when the upload completes.

C++

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 );
}

Version Information

.NET Framework
Available since 2.0

Thread Safety

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.