public ITable Clone()
{
PassThroughTable result = new PassThroughTable(baseTable);
result.advanceTable = advanceTable.Clone();
result.populated = populated;
return(result);
}
public static ITable <T> OrderByDescending <T, K>(this ITable <T> source, Expression <Func <T, K> > keySelector)
{
source = source.Clone();
source.IsDirty = true;
source.Query.OrderByClause = "order by " + source.Converter.ConvertToString(keySelector) + " desc";
return(source);
}
public static ITable <T> ThenBy <T, K>(this ITable <T> source, Expression <Func <T, K> > keySelector)
{
source = source.Clone();
source.IsDirty = true;
source.Query.OrderByClause += ", " + source.Converter.ConvertToString(keySelector);
return(source);
}
public static ITable <T> Select <T, S>(this ITable <T> source, Expression <Func <T, S> > selector)
{
source = source.Clone();
source.IsDirty = true;
//if (selector.Body is NewExpression)
//{
// LinqToNPathConverter.CreateLoadspan((NewExpression)selector.Body, source.Query);
// //throw new NotSupportedException("Not supported yet");
//}
//if (selector.Body is MemberInitExpression)
//{
// LinqToNPathConverter.CreateLoadspan((MemberInitExpression)selector.Body, source.Query);
//}
return(source);
}
public static ITable <T> Where <T>(this ITable <T> source, Expression <Func <T, bool> > predicate)
{
source = source.Clone();
source.IsDirty = true;
string whereClause = source.Converter.ConvertToString(predicate);
if (source.Query.WhereClause != "")
{
source.Query.WhereClause += string.Format(" and ({0})", whereClause);
}
else
{
source.Query.WhereClause = string.Format("where ({0})", whereClause);
}
return(source);
}
