Starts an asynchronous invocation of the
Fill() method.
Parameters
- callback
- The delegate to call when the asynchronous invoke is complete. If callback is a null reference (Nothing in Visual Basic), the delegate is not called.
- stateObject
- State information that is passed on to the delegate.
Return Value
An
System.IAsyncResult interface that represents the asynchronous operation started by calling this method.
The following example demonstrates how to use the
BeginFill method.
static void UseDataTable(DbDataTable myDataTable, DbConnection myConnection) {
myDataTable.Connection = myConnection;
myDataTable.SelectCommand = myConnection.CreateCommand();
myDataTable.SelectCommand.CommandText = "SELECT * FROM Test.Dept";
IAsyncResult aRes = myDataTable.BeginFill(null, null);
Console.Write("Fetch in process");
Thread.Sleep(100);
myDataTable.SuspendFill(true);
Console.Write("Fetch is stopped");
myDataTable.EndFill(aRes);
Console.Write("All records are fetched");
}
Private Shared Sub UseDataTable3(ByVal myDataTable As DbDataTable, ByVal myConnection As DbConnection)
myDataTable.Connection = myConnection
myDataTable.SelectCommand = myConnection.CreateCommand
myDataTable.SelectCommand.CommandText = "SELECT * FROM Test.Dept"
Dim result1 As IAsyncResult = myDataTable.BeginFill(Nothing, Nothing)
Console.Write("Fetch in process")
Thread.Sleep(100)
myDataTable.SuspendFill(True)
Console.Write("Fetch is stopped")
myDataTable.EndFill(result1)
Console.Write("All records are fetched")
End Sub