Invokes a transform function on each element of a view of elements of a generic type and computes the maximum resulting value.

Namespace:  C1.LiveLinq
Assembly:  C1.LiveLinq (in C1.LiveLinq.dll)

Syntax

C#
public static AggregationView<TSource, TResult> LiveMax<TSource, TResult>(
	this View<TSource> source,
	Expression<Func<TSource, TResult>> selector
)
Visual Basic
<ExtensionAttribute> _
Public Shared Function LiveMax(Of TSource, TResult) ( _
	source As View(Of TSource), _
	selector As Expression(Of Func(Of TSource, TResult)) _
) As AggregationView(Of TSource, TResult)

Parameters

source
Type: C1.LiveLinq.LiveViews..::..View<(Of <(<'TSource>)>)>
A view containing the values to determine the maximum value of.
selector
Type: System.Linq.Expressions..::..Expression<(Of <(<'Func<(Of <(<'TSource, TResult>)>)>>)>)>
A transform function to apply to each element.

Type Parameters

TSource
The type of the elements of source.
TResult
The type of the value returned by selector.

Return Value

A view representing the maximum of the values.

Remarks

If type TResult implements IComparable<(Of <(<'T>)>)>, this method uses that implementation to compare values. Otherwise, if type TResult implements IComparable, that implementation is used to compare values.

It is possible to use standard LINQ query operator Max instead of LiveMax. Both are "live" in the sense that they are recomputed automatically when any change occurs in the source. The difference is that Max will every time loop through the entire source collection and aggregate it from scratch, whereas LiveMax will use a more performant algorithm, will maintain its value incrementally, processing only those source items that actually changed.

See Also