public IEnumerable <T> Select(QItemList <QParam> parameters, IEnumerable <T> list = null)
{
IEnumerable <T> buffer = null;
for (int i = 0; i < parameters.Count; i++)
{
QParam param = parameters[i];
if (buffer != null && param.Logic.Type == LogicTypes.And)
{
if (!buffer.Any())
{
break;
}
list = buffer;
}
var temp = Select(param, list);
if (buffer == null)
{
buffer = temp;
}
else if (param.Logic.Type == LogicTypes.Undefined)
{
buffer = buffer.Concat(temp);
}
else if (param.Logic.Type == LogicTypes.Or)
{
buffer = param.Logic.Not
? buffer.Except(temp)
: buffer.Union(temp);
}
else if (param.Logic.Type == LogicTypes.And)
{
buffer = param.Logic.Not
? buffer.Except(temp).Union(temp.Except(buffer))
: buffer.Intersect(temp);
}
}
return(buffer);
}
public QParam() : base()
{
values = new QItemList <QItem>(this);
}
public QEnum()
{
Items = new QItemList <QItem>();
}
