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WebClient::UploadString Method (String, String, String)

Uploads the specified string to the specified resource, using the specified method.

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

public:
String^ UploadString(
	String^ address, 
	String^ method, 
	String^ data
)

Parameters

address
Type: System::String
The URI of the resource to receive the file. This URI must identify a resource that can accept a request sent with the method method.
method
Type: System::String
The HTTP method used to send the string to the resource. If null, the default is POST for http and STOR for ftp.
data
Type: System::String
The string to be uploaded.

Return Value

Type: System::String
A String containing the response sent by the server.

ExceptionCondition
ArgumentNullException

The address parameter is nullptr.

-or-

The data parameter is nullptr.

WebException

The URI formed by combining BaseAddress and address is invalid.

-or-

There was no response from the server hosting the resource.

-or-

method cannot be used to send content.

Before uploading the string, this method converts it to a Byte array using the encoding specified in the Encoding property. This method blocks while the string is transmitted. To send a string and continue executing while waiting for the server's response, use one of the UploadStringAsync methods.

If the BaseAddress property is not an empty string ("") and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.

NoteNote

This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing.

The following code example demonstrates calling this method.


void PostString( String^ address )
{
   String^ data = "Time = 12:00am temperature = 50";
   String^ method = "POST";
   WebClient^ client = gcnew WebClient;
   String^ reply = client->UploadString( address, method, data );
   Console::WriteLine( reply );
}




.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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