DataAccessor<TResult>.BeginExecute Method

Article
04/27/2013

Begin executing the database object asynchronously, returning a IAsyncResult object that can be used to retrieve the result set after the operation completes.

Namespace: Microsoft.Practices.EnterpriseLibrary.Data
Assembly: Microsoft.Practices.EnterpriseLibrary.Data (in Microsoft.Practices.EnterpriseLibrary.Data.dll) Version: 6.0.0.0 (6.0.1304.0)

Syntax

public abstract IAsyncResult BeginExecute(
    AsyncCallback callback,
    Object state,
    params Object[] parameterValues
)

'Declaration
Public MustOverride Function BeginExecute ( 
    callback As AsyncCallback,
    state As Object,
    ParamArray parameterValues As Object()
) As IAsyncResult

public:
virtual IAsyncResult^ BeginExecute(
    AsyncCallback^ callback, 
    Object^ state, 
    ... array<Object^>^ parameterValues
) abstract

Parameters

callback
Type: System.AsyncCallback
Callback to execute when the operation's results are available. May be null if you don't wish to use a callback.

state
Type: System.Object
Extra information that will be passed to the callback. May be null.

parameterValues
Type: array<System.Object[]
Parameters to pass to the database.

Return Value

Type: IAsyncResult
The IAsyncResult representing this operation.

Remarks

This operation will throw if the underlying Database object does not support asynchronous operation.

Exceptions

Exception	Condition
System.InvalidOperationException	The underlying database does not support asynchronous operation.