private static GXSelectArgs SelectByIdInternal <T, IDTYPE>(IDTYPE id, Expression <Func <T, object> > columns)
{
GXSelectArgs arg = GXSelectArgs.Select <T>(columns);
GXSerializedItem si = GXSqlBuilder.FindUnique(typeof(T));
if (si == null)
{
throw new ArgumentException("Select by ID failed. Target class must be derived from IUnique.");
}
string name = GXDbHelpers.GetColumnName(si.Target as PropertyInfo, '\0');
arg.Where.Or <IUnique <T> >(q => name.Equals(id));
return(arg);
}
