protected override IAsyncResult BeginExecute(AsyncCodeActivityContext context, AsyncCallback callback, object state)
{
// configure the helper object to access the database
dbHelper = new DbHelper();
dbHelper.ConnectionString = this.ConnectionString.Get(context);
dbHelper.ProviderName = this.ProviderName.Get(context);
dbHelper.ConfigName = this.ConfigName.Get(context);
dbHelper.Sql = this.Sql.Get(context);
dbHelper.CommandType = this.CommandType;
dbHelper.Parameters = this.parameters;
dbHelper.Init(context);
// create the action for doing the actual work
Func<int> action = () => dbHelper.Execute();
context.UserState = action;
return action.BeginInvoke(callback, state);
}
