Class ListViewDelegateGroupDescriptor

Represents a group descriptor that uses a delegate function to extract grouping keys from items.

Inheritance
System.Object
DataDescriptorBase
OrderedDescriptorBase
GroupDescriptorBase
ListViewDelegateGroupDescriptor
Inherited Members
Namespace: Telerik.Maui.Controls.Compatibility.DataControls.ListView
Assembly: Telerik.Maui.Controls.Compatibility.dll

Syntax

public class ListViewDelegateGroupDescriptor : GroupDescriptorBase, IChildElement, IComparer, IComparer<object>, IKeyLookup

Constructors

ListViewDelegateGroupDescriptor()

Declaration
public ListViewDelegateGroupDescriptor()

Fields

KeyExtractorProperty

Identifies the KeyExtractor bindable property.

Declaration
public static readonly BindableProperty KeyExtractorProperty
Field Value
Microsoft.Maui.Controls.BindableProperty

Properties

KeyExtractor

Gets or sets the function used to extract grouping keys from items.

Declaration
public Func<object, object> KeyExtractor { get; set; }
Property Value
System.Func<System.Object, System.Object>

A System.Func<, > that takes an object and returns the grouping key.

Methods

GetDescriptorCollection(RadListView)

Gets the descriptor collection from the specified list view.

Declaration
protected override IList GetDescriptorCollection(RadListView listView)
Parameters
RadListView listView

The RadListView instance.
Returns
System.Collections.IList

The group descriptors collection as System.Collections.IList.
Overrides

GetKeyCore(Object)

Extracts the grouping key from the specified item using the custom key extractor.

Declaration
protected override object GetKeyCore(object item)
Parameters
System.Object item

The item to extract the key from.
Returns
System.Object

The grouping key for the item.
Overrides

Extension Methods