Class GroupDescriptorBase

Provides a base class for group descriptors that implement key-based grouping functionality.

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

Syntax

public abstract class GroupDescriptorBase : OrderedDescriptorBase, IChildElement, IComparer, IComparer<object>, IKeyLookup

Constructors

GroupDescriptorBase()

Declaration
protected GroupDescriptorBase()

Methods

GetDefaultKey(Object)

Gets the default key for the specified item when no custom key extraction is needed.

Declaration
protected virtual object GetDefaultKey(object item)
Parameters
System.Object item

The item to get the default key for.
Returns
System.Object

The item itself as the default key.

GetKey(Object)

Gets the key for the specified item used for grouping.

Declaration
public object GetKey(object item)
Parameters
System.Object item

The item to get the key for.
Returns
System.Object

The key object used for grouping.
Implements

GetKeyCore(Object)

When implemented in a derived class, provides the core logic for extracting the grouping key from an item.

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

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

The key object used for grouping.

Extension Methods