Class CheckListBox

Represents a control that displays the multiple items with the System.Windows.Controls.CheckBox.

Inheritance

System.Object

CheckListBox

Implements

System.IDisposable

Namespace: Syncfusion.Windows.Tools.Controls

Assembly: Syncfusion.Tools.Wpf.dll

Syntax

[SkinType]
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public class CheckListBox : ItemsControl, IDisposable

Remarks

The CheckListBox provides a flexible way to select multiple items by loading a items with the System.Windows.Controls.CheckBox.

Examples

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Syncfusion.Windows.Tools.Controls;
namespace checklistbox
{
    /// 

    /// Interaction logic for Window1.xaml
    /// 
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
            CheckListBox checklistbox = new CheckListBox();
            this.Content = checklistbox;
        }
    }
}

Constructors

CheckListBox()

Initializes a new instance of the CheckListBox class.

Declaration

public CheckListBox()

Remarks

The CheckListBox displays items with a checkbox to enable multiple selection of items.

Fields

CheckBoxAlignmentProperty

Identifies the CheckBoxAlignment dependency property.

Declaration

public static readonly DependencyProperty CheckBoxAlignmentProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the CheckBoxAlignment dependency property.

DragEndEvent

Occurs when the CheckListBox items dragged to drop into the other CheckListBox.

Declaration

public static readonly RoutedEvent DragEndEvent

Field Value

Type
System.Windows.RoutedEvent

Remarks

This event is raised if the items dragging is ended.

DragStartEvent

Occurs when the CheckListBox items started dragging to drop into the other CheckListBox.

Declaration

public static readonly RoutedEvent DragStartEvent

Field Value

Type
System.Windows.RoutedEvent

Remarks

This event is raised if the items dragging is started.

GroupDescriptionsProperty

Identifies the GroupDescriptions dependency property.

Declaration

public static readonly DependencyProperty GroupDescriptionsProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the GroupDescriptions dependency property.

GroupTemplateProperty

Identifies the GroupTemplate dependency property.

Declaration

public static readonly DependencyProperty GroupTemplateProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the GroupTemplate dependency property.

IsCheckedMemberPathProperty

Identifies the IsCheckedMemberPath dependency property.

Declaration

public static readonly DependencyProperty IsCheckedMemberPathProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

Identifies the IsCheckedMemberPath dependency property.

IsCheckOnFirstClickProperty

Identifies the IsCheckOnFirstClick dependency property.

Declaration

public static readonly DependencyProperty IsCheckOnFirstClickProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the IsCheckOnFirstClick dependency property.

IsDragDropEnabledProperty

Identifies the IsDragDropEnabled dependency property.

Declaration

public static readonly DependencyProperty IsDragDropEnabledProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the IsDragDropEnabled dependency property.

IsSelectAllEnabledProperty

Identifies the IsSelectAllEnabled dependency property.

Declaration

public static readonly DependencyProperty IsSelectAllEnabledProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the IsSelectAllEnabled dependency property.

MouseOverBackgroundProperty

Identifies the MouseOverBackground dependency property.

Declaration

public static readonly DependencyProperty MouseOverBackgroundProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the MouseOverBackground dependency property.

SelectAllTemplateProperty

Identifies the SelectAllTemplate dependency property.

Declaration

public static readonly DependencyProperty SelectAllTemplateProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SelectAllTemplate dependency property.

SelectedItemBackgroundProperty

Identifies the SelectedItemBackground dependency property.

Declaration

public static readonly DependencyProperty SelectedItemBackgroundProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SelectedItemBackground dependency property.

SelectedItemProperty

Identifies the SelectedItem dependency property.

Declaration

public static readonly DependencyProperty SelectedItemProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SelectedItem dependency property.

SelectedItemsProperty

Identifies the SelectedItems dependency property.

Declaration

public static readonly DependencyProperty SelectedItemsProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SelectedItems dependency property.

SelectedValuePathProperty

Identifies the SelectedValuePath dependency property.

Declaration

public static readonly DependencyProperty SelectedValuePathProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SelectedValuePath dependency property.

SelectedValueProperty

Identifies the SelectedValue dependency property.

Declaration

public static readonly DependencyProperty SelectedValueProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SelectedValue dependency property.

SortDescriptionsProperty

Identifies the SortDescriptions dependency property.

Declaration

public static readonly DependencyProperty SortDescriptionsProperty

Field Value

Type
System.Windows.DependencyProperty

Remarks

The identifier for the SortDescriptions dependency property.

Properties

GroupDescriptions

Gets or sets the collection of grouping descriptions of the group items in the CheckListBox.

Declaration

public ObservableCollection<GroupDescription> GroupDescriptions { get; set; }

Property Value

Type
System.Collections.ObjectModel.ObservableCollection<System.ComponentModel.GroupDescription>

Remarks

The GroupDescriptions contains the group items descriptions.

GroupTemplate

Gets or sets System.Windows.DataTemplate that defines the visual representation of the group header items in the CheckListBox.

Declaration

public DataTemplate GroupTemplate { get; set; }

Property Value

Type	Description
System.Windows.DataTemplate	The object that defines the visual representation of the group header.

IsCheckedMemberPath

Gets or sets the name of the property that is bound to the IsChecked property of CheckListBoxItem.

Declaration

public string IsCheckedMemberPath { get; set; }

Property Value

Type
System.String

Remarks

The IsCheckedMemberPath property is used to bind the specified boolean property in the data source, identified by its name, to the IsChecked property of the CheckedListBoxItem. This allows synchronization of changes in the IsChecked property of the CheckedListBoxItem with the associated bound property. The value stored in this property should be the name of a boolean property in the data source to which the CheckedListBoxItem is bound. The binding will not function if this property is empty or null. For example, if you have a collection of items with a "IsSelected" boolean property, you can set IsCheckedMemberPath to "IsSelected" to bind the IsChecked property of the CheckedListBoxItem to the "IsSelected" property in the data source. Any changes made to the IsChecked property will be reflected in the "IsSelected" property, and vice versa.

IsCheckOnFirstClick

Gets or sets a value that indicates whether the CheckListBoxItem is check on first click.

Declaration

public bool IsCheckOnFirstClick { get; set; }

Property Value

Type	Description
System.Boolean	true if the check on first click is enabled for CheckListBoxItem; otherwise, false.The default value is true.

IsDragDropEnabled

Gets or sets a value that indicates whether the drag drop is enabled for the CheckListBoxItem.

Declaration

public bool IsDragDropEnabled { get; set; }

Property Value

Type	Description
System.Boolean	true if drag drop is enabled for the CheckListBoxItem; otherwise, false.The default value is false.

IsSelectAllEnabled

Gets or sets a value that indicates whether the "SelectAll" item is shown.

Declaration

public bool IsSelectAllEnabled { get; set; }

Property Value

Type	Description
System.Boolean	true if the "SelectAll" item is enabled; otherwise, false.The default value is true.

MouseOverBackground

Gets or sets a brush that describes the mouse hover background of a selected CheckListBoxItem.

Declaration

public Brush MouseOverBackground { get; set; }

Property Value

Type
System.Windows.Media.Brush

SelectAllTemplate

Gets or sets System.Windows.DataTemplate that defines the visual representation of the "SelectAll" item in the CheckListBox.

Declaration

public DataTemplate SelectAllTemplate { get; set; }

Property Value

Type	Description
System.Windows.DataTemplate	The object that defines the visual representation of the "SelectAll" item.

SelectedItem

Gets or sets the currently selected item or returns null if the selection is empty in the CheckListBox.

Declaration

public object SelectedItem { get; set; }

Property Value

Type	Description
System.Object	An object that represents the current selection in the control.

Remarks

The item which is selected or null if the selection is empty.

SelectedItemBackground

Gets or sets a brush that describes the background of a selected CheckListBoxItem.

Declaration

public Brush SelectedItemBackground { get; set; }

Property Value

Type
System.Windows.Media.Brush

SelectedItems

Gets or sets a collection containing the currently checked items in the CheckListBox.

Declaration

public ObservableCollection<object> SelectedItems { get; set; }

Property Value

Type	Description
System.Collections.ObjectModel.ObservableCollection<System.Object>	A Observable ObjectCollection containing the currently checked items in the control.

Remarks

The collection of items in the CheckListBox that are checked.

SelectedValue

Gets or sets the value of the SelectedItem in the CheckListBox control.

Declaration

public object SelectedValue { get; set; }

Property Value

Type	Description
System.Object	The value of the selected item in the CheckListBox control. The default value is an empty string ("").

Remarks

The SelectedValue is sets to null when the SelectedItem is "SelectAll" or SelectedValuePath property is null.

SelectedValuePath

Gets or sets the path that is used to get the SelectedValue from the SelectedItem.

Declaration

public string SelectedValuePath { get; set; }

Property Value

Type	Description
System.String	The path used to get the SelectedValue. The default is an empty string.

Remarks

The SelectedValuePath property specifies the path to the property that is used to determine the value of the SelectedValue property.

SortDescriptions

Gets or sets the the sorting order descriptions of group items in the CheckListBox.

Declaration

public SortDescriptionCollection SortDescriptions { get; set; }

Property Value

Type
System.ComponentModel.SortDescriptionCollection

Remarks

The SortDescriptions contains the sorting order descriptions of the group items.

Methods

add_DragEnd(CheckListBox.DragCheckListBoxHandler)

Declaration

public void add_DragEnd(CheckListBox.DragCheckListBoxHandler value)

Parameters

Type	Name	Description
CheckListBox.DragCheckListBoxHandler	value

add_DragStart(CheckListBox.DragCheckListBoxHandler)

Declaration

public void add_DragStart(CheckListBox.DragCheckListBoxHandler value)

Parameters

Type	Name	Description
CheckListBox.DragCheckListBoxHandler	value

CanStartDrag(Point, Point)

Determines whether this instance [can start drag] the specified starting mouse offset.

Declaration

public static bool CanStartDrag(Point startingMouseOffset, Point currentMouseOffset)

Parameters

Type	Name	Description
System.Windows.Point	startingMouseOffset	The starting mouse offset.
System.Windows.Point	currentMouseOffset	The current mouse offset.

Returns

Type	Description
System.Boolean	true if this instance [can start drag] the specified starting mouse offset; otherwise, false.

Dispose()

Release the unmanaged resources of CheckListBox.

Declaration

public void Dispose()

FindAncestor(Type, Visual)

Finds the ancestor of the items.

Declaration

public static FrameworkElement FindAncestor(Type ancestorType, Visual visual)

Parameters

Type	Name	Description
System.Type	ancestorType	The type of ancestor to find.
System.Windows.Media.Visual	visual	The visual of the ancestor.

Returns

Type	Description
System.Windows.FrameworkElement	It returns the System.Windows.FrameworkElement.

GetCheckBoxAlignment(DependencyObject)

Specifies the alignment of the System.Windows.Controls.CheckBox.

Declaration

public static CheckBoxAlignment GetCheckBoxAlignment(DependencyObject obj)

Parameters

Type	Name	Description
System.Windows.DependencyObject	obj	The obj contains the System.Windows.DependencyObject.

Returns

Type	Description
CheckBoxAlignment	It returns the CheckBoxAlignment.

GetCheckBoxFromChildren(FrameworkElement)

Specifies the System.Windows.Controls.CheckBox from the given framework element.

Declaration

public static CheckBox GetCheckBoxFromChildren(FrameworkElement element)

Parameters

Type	Name	Description
System.Windows.FrameworkElement	element	The System.Windows.FrameworkElement that contains System.Windows.Controls.CheckBox framework

Returns

Type	Description
System.Windows.Controls.CheckBox	This methods returns the System.Windows.Controls.CheckBox.

GetCheckListBoxItemFromChildren(FrameworkElement)

Specifies the CheckListBoxItem from the given framework element.

Declaration

public static CheckListBoxItem GetCheckListBoxItemFromChildren(FrameworkElement element)

Parameters

Type	Name	Description
System.Windows.FrameworkElement	element	The System.Windows.FrameworkElement that contains CheckListBoxItem framework

Returns

Type	Description
CheckListBoxItem	This methods returns the CheckListBoxItem.

OnApplyTemplate()

Invoked before the UI element displays in an application and when a new template is applied.

Declaration

public override void OnApplyTemplate()

OnDragOver(DragEventArgs)

Invoked when an unhandled System.Windows.DragDrop.DragOver attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration

protected override void OnDragOver(DragEventArgs e)

Parameters

Type	Name	Description
System.Windows.DragEventArgs	e	The System.Windows.DragEventArgs that contains the event data.

OnDrop(DragEventArgs)

Invoked when an unhandled System.Windows.DragDrop.DragEnter attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration

protected override void OnDrop(DragEventArgs e)

Parameters

Type	Name	Description
System.Windows.DragEventArgs	e	The System.Windows.DragEventArgs that contains the event data.

OnIsDragDropEnabled(DependencyPropertyChangedEventArgs)

Raises the IsDragDropEnabledChanged event.

Declaration

protected virtual void OnIsDragDropEnabled(DependencyPropertyChangedEventArgs e)

Parameters

Type	Name	Description
System.Windows.DependencyPropertyChangedEventArgs	e	The System.Windows.DependencyPropertyChangedEventArgs that contains the event data.

OnItemsSourceChanged(IEnumerable, IEnumerable)

Called when System.Windows.Controls.ItemsControl.ItemsSource property changes.

Declaration

protected override void OnItemsSourceChanged(IEnumerable oldValue, IEnumerable newValue)

Parameters

Type	Name	Description
System.Collections.IEnumerable	oldValue	The Old value of the System.Windows.Controls.ItemsControl.ItemsSource property.
System.Collections.IEnumerable	newValue	The New value of the System.Windows.Controls.ItemsControl.ItemsSource property.

OnKeyDown(KeyEventArgs)

Invoked when the System.Windows.UIElement.KeyDown event is received.

Declaration

protected override void OnKeyDown(KeyEventArgs e)

Parameters

Type	Name	Description
System.Windows.Input.KeyEventArgs	e	The System.Windows.Input.KeyEventArgs that contains the event data.

OnPreviewDragLeave(DragEventArgs)

Invoked when an unhandled System.Windows.DragDrop.PreviewDragLeave attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration

protected override void OnPreviewDragLeave(DragEventArgs e)

Parameters

Type	Name	Description
System.Windows.DragEventArgs	e	The System.Windows.DragEventArgs that contains the event data.

OnPreviewMouseLeftButtonDown(MouseButtonEventArgs)

Invoked when an unhandled System.Windows.UIElement.PreviewMouseLeftButtonDown routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration

protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)

Parameters

Type	Name	Description
System.Windows.Input.MouseButtonEventArgs	e	The System.Windows.Input.MouseButtonEventArgs that contains the event data. The event data reports that the left mouse button was pressed.

OnPreviewMouseMove(MouseEventArgs)

Invoked when an unhandled System.Windows.Input.Mouse.PreviewMouseMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.

Declaration

protected override void OnPreviewMouseMove(MouseEventArgs e)

Parameters

Type	Name	Description
System.Windows.Input.MouseEventArgs	e	The System.Windows.Input.MouseEventArgs that contains the event data.

remove_DragEnd(CheckListBox.DragCheckListBoxHandler)

Declaration

public void remove_DragEnd(CheckListBox.DragCheckListBoxHandler value)

Parameters

Type	Name	Description
CheckListBox.DragCheckListBoxHandler	value

remove_DragStart(CheckListBox.DragCheckListBoxHandler)

Declaration

public void remove_DragStart(CheckListBox.DragCheckListBoxHandler value)

Parameters

Type	Name	Description
CheckListBox.DragCheckListBoxHandler	value

SetCheckBoxAlignment(DependencyObject, CheckBoxAlignment)

Assigns the alignment of the System.Windows.Controls.CheckBox.

Declaration

public static void SetCheckBoxAlignment(DependencyObject obj, CheckBoxAlignment value)

Parameters

Type	Name	Description
System.Windows.DependencyObject	obj	The obj contains the System.Windows.DependencyObject.
CheckBoxAlignment	value	The value of CheckBoxAlignment.

Events

DragEnd

Occurs when items dragging ends to drop the items into the other CheckListBox control.

Declaration

public event CheckListBox.DragCheckListBoxHandler DragEnd

Event Type

Type
CheckListBox.DragCheckListBoxHandler

Remarks

This event will be raised when the CheckListBoxItem dragging is completed.

DragStart

Occurs when items dragging starts to drop the items into the other CheckListBox control.

Declaration

public event CheckListBox.DragCheckListBoxHandler DragStart

Event Type

Type
CheckListBox.DragCheckListBoxHandler

Remarks

This event will be raised when the CheckListBoxItem dragging started.

IsDragDropEnabledChanged

Occurs when the IsDragDropEnabled property is changed.

Declaration

public event PropertyChangedCallback IsDragDropEnabledChanged

Event Type

Type
System.Windows.PropertyChangedCallback

Remarks

This event is raised if the IsDragDropEnabled property is changed by either a programmatic modification or user interaction.

ItemChecked

Occurs when the CheckListBoxItem check state is changed.

Declaration

public event EventHandler<ItemCheckedEventArgs> ItemChecked

Event Type

Type
System.EventHandler<ItemCheckedEventArgs>

Remarks

This event is raised if the check state of the CheckListBoxItem is changed by either a programmatic modification or user interaction.

SelectionChanged

Occurs when the CheckListBoxItem selection is changed.

Declaration

public event SelectionChangedEventHandler SelectionChanged

Event Type

Type
System.Windows.Controls.SelectionChangedEventHandler

Remarks

This event occurs whenever there is a change to a selection. A selection can be changed not only by user interaction but also by binding as well as other set values.

Implements

System.IDisposable