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MetadataResolver.BeginResolve Method (IEnumerable(Of ContractDescription), EndpointAddress, MetadataExchangeClient, AsyncCallback, Object)

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

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

'Declaration
Public Shared Function BeginResolve ( _
	contracts As IEnumerable(Of ContractDescription), _
	address As EndpointAddress, _
	client As MetadataExchangeClient, _
	callback As AsyncCallback, _
	asyncState As Object _
) As IAsyncResult

Parameters

contracts
Type: System.Collections.Generic.IEnumerable(Of ContractDescription)

The contracts for which to download and resolve metadata.

address
Type: System.ServiceModel.EndpointAddress

The metadata address.

client
Type: System.ServiceModel.Description.MetadataExchangeClient

The System.ServiceModel.Description.MetadataExchangeClient used to retrieve the metadata.

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.

ExceptionCondition
ArgumentNullException

The address, contract, client, or callback is Nothing.

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 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.

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

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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