/// <summary>
/// Calculates the results of given aggregates functions on a sequence of elements.
/// </summary>
/// <param name="source"> An <see cref="IQueryable" /> whose elements will
/// be used for aggregate calculation.</param>
/// <param name="aggregateFunctions">The aggregate functions.</param>
/// <returns>Collection of <see cref="AggregateResult"/>s calculated for each function.</returns>
public static AggregateResultCollection Aggregate(this IQueryable source, IEnumerable<AggregateFunction> aggregateFunctions)
{
var functions = aggregateFunctions.ToList();
if (functions.Count > 0)
{
var builder = new QueryableAggregatesExpressionBuilder(source, functions);
var groups = builder.CreateQuery();
foreach (AggregateFunctionsGroup group in groups)
{
return group.GetAggregateResults(functions);
}
}
return new AggregateResultCollection();
}
/// <summary>
/// Calculates the results of given aggregates functions on a sequence of elements.
/// </summary>
/// <param name="source"> An <see cref="IQueryable" /> whose elements will
/// be used for aggregate calculation.</param>
/// <param name="aggregateFunctions">The aggregate functions.</param>
/// <returns>Collection of <see cref="AggregateResult"/>s calculated for each function.</returns>
public static AggregateResultCollection Aggregate(this IQueryable source, IEnumerable <AggregateFunction> aggregateFunctions)
{
var functions = aggregateFunctions.ToList();
if (functions.Count > 0)
{
var builder = new QueryableAggregatesExpressionBuilder(source, functions);
builder.Options.LiftMemberAccessToNull = source.Provider.IsLinqToObjectsProvider();
var groups = builder.CreateQuery();
foreach (AggregateFunctionsGroup group in groups)
{
return(group.GetAggregateResults(functions));
}
}
return(new AggregateResultCollection());
}
/// <summary>
/// Calculates the results of given aggregates functions on a sequence of elements.
/// </summary>
/// <param name="source"> An <see cref="IQueryable" /> whose elements will
/// be used for aggregate calculation.</param>
/// <param name="aggregateFunctions">The aggregate functions.</param>
/// <returns>Collection of <see cref="AggregateResult"/>s calculated for each function.</returns>
public static AggregateResultCollection Aggregate(this IQueryable source, IEnumerable<AggregateFunction> aggregateFunctions)
{
var functions = aggregateFunctions.ToList();
if (functions.Count > 0)
{
var builder = new QueryableAggregatesExpressionBuilder(source, functions);
builder.Options.LiftMemberAccessToNull = source.Provider.IsLinqToObjectsProvider();
var groups = builder.CreateQuery();
foreach (AggregateFunctionsGroup group in groups)
{
return group.GetAggregateResults(functions);
}
}
return new AggregateResultCollection();
}
