/// <inheritdoc />
public virtual TQuery GroupBy(Expression <Func <TSource, object> > property)
{
if (property != null)
{
IProjection projection = ProjectionHelper
.GetProjection
(
property.Body,
new HelperContext(Data, property, HelperType.GroupBy)
);
if (projection != null)
{
if (projection.IsGrouped || projection.IsAggregate)
{
throw new InvalidOperationException(
"Cannot use an aggregate or grouped projection with GroupBy");
}
GroupBys.Add(new FqGroupByProjection(projection, false));
}
}
return(Query);
}
public QueryExpression GroupBy(params string[] propertyNames)
{
foreach (string propertyName in propertyNames)
{
GroupBys.Add(propertyName);
}
return(this);
}
public QueryExpression GroupBy(params IPropertyExpression[] propertys)
{
foreach (IPropertyExpression property in propertys)
{
GroupBys.Add(new GroupExpression(property.PropertyName));
}
return(this);
}
public void AdicionarAgrupamento(string agrupamento)
{
GroupBys.Add(agrupamento);
}
public void AppendGroupBy(IQueryableColumn groupByColumn)
{
GroupBys.Add(groupByColumn);
}