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ICollectionView Interface

Namespace:
ActiproSoftware.UI.Avalonia.Data
Assembly:
ActiproSoftware.Avalonia.Shared.dll

Defines the base requirements for a managed view over a collection.

public interface ICollectionView

Remarks

This experimental interface is subject to breaking changes and should only be used in conjunction with Actipro controls in the manner directed.

Properties

Filter

A filter used to determine which items are included in the view.

Predicate<object?>? Filter { get; set; }

Property Value

Predicate<object>

Groups

The groups of items including by the view of this collection.

ObservableCollection<CollectionViewGroup> Groups { get; }

Property Value

ObservableCollection<CollectionViewGroup>

HasFilter

Indicates if the view has defined a filter.

bool HasFilter { get; }

Property Value

bool

HasGroups

Indicates if the view has defined any groups.

bool HasGroups { get; }

Property Value

bool

Methods

GetGroupNames(bool)

Gets the name of the available groups, optionally included groups that are excluded by the current filter.

IEnumerable<string?> GetGroupNames(bool ignoreFilter)
Parameter Type Description
ignoreFilter bool

When true, group names will be included for items that are part of the collection but currently excluded due to a filter.

Returns

IEnumerable<string>

Refresh()

Refreshes the view.

void Refresh()

ResolveGroupName(object?)

Resolves the group name, if any, that applies to the given item.

string? ResolveGroupName(object? item)
Parameter Type Description
item object

The item to examine.

Returns

string:

The group name, or null if a group name is not available.

Extension Methods