Export (0) Print
Expand All
1 out of 1 rated this helpful - Rate this topic

WebClient.DownloadData Method (String)

Downloads the resource with the specified URI as a Byte array.

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

public byte[] DownloadData (
	string address
)
public byte[] DownloadData (
	String address
)
public function DownloadData (
	address : String
) : byte[]

Parameters

address

The URI from which to download data.

Return Value

A Byte array containing the downloaded resource.
Exception typeCondition

WebException

The URI formed by combining BaseAddress and address is invalid.

-or-

An error occurred while downloading data.

NotSupportedException

The method has been called simultaneously on multiple threads.

The DownloadData method downloads the resource with the URI specified by the address parameter. This method blocks while downloading the resource. To download a resource and continue executing while waiting for the server's response, use one of the DownloadDataAsync 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.

This method uses the RETR command to download an FTP resource. For an HTTP resource, the GET method is used.

NoteNote

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

The following code example requests data from a server and displays the data returned. It assumes that remoteUri contains a valid URI for the requested data.

Console.Write("\nPlease enter a URI (for example, http://www.contoso.com): ");
string remoteUri = Console.ReadLine();

// Create a new WebClient instance.
WebClient myWebClient = new WebClient();
// Download home page data.
Console.WriteLine("Downloading " + remoteUri);                        
// Download the Web resource and save it into a data buffer.
byte[] myDataBuffer = myWebClient.DownloadData (remoteUri);

// Display the downloaded data.
string download = Encoding.ASCII.GetString(myDataBuffer);
Console.WriteLine(download);
                    
Console.WriteLine("Download successful.");

Console.Write("\nPlease enter a URI (e.g. http://www.contoso.com): ");
String remoteUri = Console.ReadLine();
// Create a new WebClient instance.
WebClient myWebClient = new WebClient();
// Download home page data.
Console.WriteLine("Downloading " + remoteUri);
// Download the Web resource and save it into a data buffer.
ubyte myDataBuffer[] = myWebClient.DownloadData(remoteUri);
// Display the downloaded data.
String download = Encoding.get_ASCII().GetString(myDataBuffer);
Console.WriteLine(download);

Console.WriteLine("Download successful.");

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.