Opens a readable stream to the specified resource.
(in System.Net.dll)
'Usage
Dim instance As WebClient
Dim address As Uri
instance.OpenReadAsync(address)
'Declaration
Public Sub OpenReadAsync ( _
address As Uri _
)
Parameters
- address
- Type: System..::.Uri
The location of the resource to be downloaded.
This method retrieves the specified resource using the GET method. The resource is downloaded asynchronously. If the AllowReadStreamBuffering property is true, then the OpenReadCompleted event is raised once the entire response stream has been received and buffered into memory. Otherwise, the OpenReadCompleted event is raised as soon as the response stream is available for reading even if all data has not yet arrived.
You can use the CancelAsync method to cancel asynchronous operations that have not completed.
You cannot call the OpenReadAsync method again on the same WebClient object, until the first download operation is completed. Doing this causes an exception.
If the BaseAddress property is not an empty string and the address does not contain an absolute URI, the address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
Reference