protected override System.IAsyncResult BeginExecute(AsyncCodeActivityContext context, System.AsyncCallback callback, object state)
{
string connString = null;
string provName = null;
string sql = string.Empty;
int commandTimeout = OverTime.Get(context);
if (commandTimeout < 0)
{
throw new ArgumentException("TimeoutMS");
}
Dictionary <string, Tuple <object, ArgumentDirection> > parameters = null;
try
{
sql = SQLString.Get(context);
DBConn = DBConnection.Get(context);
connString = ConnectionString.Get(context);
provName = ProviderName.Get(context);
if (Parameters != null)
{
parameters = new Dictionary <string, Tuple <object, ArgumentDirection> >();
foreach (var param in Parameters)
{
parameters.Add(param.Key, new Tuple <object, ArgumentDirection>(param.Value.Get(context), param.Value.Direction));
}
}
}
catch (Exception ex)
{
HandleException(ex, ContinueOnError.Get(context));
}
// create the action for doing the actual work
Func <DBExecuteCommandResult> action = () =>
{
DBExecuteCommandResult executeResult = new DBExecuteCommandResult();
if (DBConn == null)
{
DBConn = new DatabaseConnection().Initialize(connString, provName);
}
if (DBConn == null)
{
return(executeResult);
}
executeResult = new DBExecuteCommandResult(DBConn.Execute(sql, parameters, commandTimeout, CommandType), parameters);
return(executeResult);
};
context.UserState = action;
return(action.BeginInvoke(callback, state));
}