private static object OnListFirst(Type type, IConnectinContext cc, string from, Expression expression, string orderby, string groupby)
{
Command cmd = Command.GetThreadCommand().AddSqlText(from);// new Command(from);
if (expression != null)
{
expression.Parse(cmd);
}
if (!string.IsNullOrEmpty(groupby))
{
cmd.Text.Append(" Group by ").Append(groupby);
}
if (!string.IsNullOrEmpty(orderby))
{
cmd.Text.Append(" Order by ").Append(orderby);
}
return(cc.ListFirst(type, cmd));
}