MetadataResolver.BeginResolve Method (IEnumerable<ContractDescription>, EndpointAddress, AsyncCallback, Object)

 

Begins an asynchronous call that resolves a metadata address into the ServiceEndpoint objects for the specified contracts, using the specified address and asynchronous state and delegate.

Namespace:   System.ServiceModel.Description
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public static IAsyncResult BeginResolve(
	IEnumerable<ContractDescription> contracts,
	EndpointAddress address,
	AsyncCallback callback,
	object asyncState
)

Parameters

contracts
Type: System.Collections.Generic.IEnumerable<ContractDescription>

The contracts for which to download and resolve metadata.

address
Type: System.ServiceModel.EndpointAddress

The metadata address.

callback
Type: System.AsyncCallback

The asynchronous callback delegate invoked when the call is complete.

asyncState
Type: System.Object

The state associated with the asynchronous call.

Return Value

Type: System.IAsyncResult

The IAsyncResult that references the asynchronous resolve operation.

Exception Condition
ArgumentNullException

The address, contract, or callback is null.

ArgumentException

contracts is empty, at least one member of contracts is null, or contracts contains more than one contract with the same name and namespace.

The default settings on the System.ServiceModel.Description.MetadataExchangeClient are used to retrieve the metadata and the default System.ServiceModel.Description.MetadataExchangeClientMode is MetadataExchangeClientMode.MetadataExchange.

To download metadata but not resolve the information into ServiceEndpoint objects, use the System.ServiceModel.Description.MetadataExchangeClient directly.

System_CAPS_noteNote

An empty collection is returned if no endpoints were imported or if no endpoints matched the contract. If an empty collection is returned, a warning trace is written.

.NET Framework
Available since 3.0
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