Class RadTabControlBase

A base class providing functionality to controls used to create tabbed interfaces.

Inheritance

System.Object

RadTabControlBase

RadDiagramToolbox

RadRibbonView

RadTabControl

Namespace: Telerik.Windows.Controls.TabControl

Assembly: Telerik.Windows.Controls.Navigation.dll

Syntax

public abstract class RadTabControlBase : MultiSelector

Constructors

RadTabControlBase()

Initializes a new instance of the RadTabControlBase class.

Declaration

protected RadTabControlBase()

Fields

ContentTemplateSelectorProperty

Identifies the ContentTemplateSelector property.

Declaration

public static readonly DependencyProperty ContentTemplateSelectorProperty

Field Value

System.Windows.DependencyProperty

PropagateItemDataContextToContentProperty

Identifies the PropagateItemDataContextToContent property.

Declaration

public static readonly DependencyProperty PropagateItemDataContextToContentProperty

Field Value

System.Windows.DependencyProperty

SelectedContentTemplateProperty

Identifies the SelectedContentTemplate property.

Declaration

public static readonly DependencyProperty SelectedContentTemplateProperty

Field Value

System.Windows.DependencyProperty

SelectedContentTemplateSelectorProperty

Identifies the SelectedContentTemplateSelector property.

Declaration

public static readonly DependencyProperty SelectedContentTemplateSelectorProperty

Field Value

System.Windows.DependencyProperty

SelectedItemRemoveBehaviourProperty

Identifies the SelectedItemRemoveBehaviour property.

Declaration

public static readonly DependencyProperty SelectedItemRemoveBehaviourProperty

Field Value

System.Windows.DependencyProperty

Properties

BackgroundVisibility

Gets or sets the visibility of the background panel for the headers in the tab control. This is a dependency property.

Declaration

[SRDescription("TabControlBackgroundOpacityDescription")]
[SRCategory("AppearanceCategory")]
public virtual Visibility BackgroundVisibility { get; set; }

Property Value

System.Windows.Visibility

Remarks

This property gives you a quick way to change the visibility of the background without having to modify the ControlTemplate of the TabControl.

This property does not affect the visibility of the divider (the line between the items and the content). To change the divider, edit the appropriate control template.

The default value is Visible.

ContentElement

The ContentElement template part.

Declaration

protected ContentPresenter ContentElement { get; set; }

Property Value

System.Windows.Controls.ContentPresenter

The content element.

ContentElementsPanel

The ContentElementsPanel template part.

Declaration

protected Grid ContentElementsPanel { get; set; }

Property Value

System.Windows.Controls.Grid

The content element.

ContentTemplateSelector

Gets or sets the DataTemplateSelector that will be used to select a data template for the items that do not have a ContentTemplate set. This is a dependency property.

Declaration

[SRCategory("AppearanceCategory")]
public virtual DataTemplateSelector ContentTemplateSelector { get; set; }

Property Value

System.Windows.Controls.DataTemplateSelector

HeaderBackground

Gets or sets the background of the tab strip. This is a dependency property.

Declaration

[SRCategory("AppearanceCategory")]
public virtual Brush HeaderBackground { get; set; }

Property Value

System.Windows.Media.Brush

Remarks

This property gives you a quick way to change the tab strip background without having to modify the ControlTemplate of the TabControl.

IsContentPreserved

Gets or sets a value indicating whether the state of the content will be preserved when selection is changed.

Declaration

public virtual bool IsContentPreserved { get; set; }

Property Value

System.Boolean

True if the first tab will preserve the content state; otherwise, false.

IsDefaultItemSelected

Gets or sets a value indicating whether the first tab item will be selected by default on start up.

Declaration

public bool IsDefaultItemSelected { get; set; }

Property Value

System.Boolean

True if the first tab item will be selected; otherwise, false.

Item[Int32]

Indexer, gets the tab item with the given index in the items collection.

Declaration

public virtual IRadTabItem this[int index] { get; }

Parameters

System.Int32 index

The index of the tab item in the Items collection of tab control.

Property Value

IRadTabItem

The tab item with the given index in the Items collection of the tab control.

Remarks

You can use the indexer to quickly get the item at given index. The indexer is a shortcut for the ContainerFromIndex method.

Note that you cannot use the indexer to change (replace) an item if you would like to do this use the System.Windows.Controls.ItemsControl.Items property. If an invalid index is passed null is returned.

PropagateItemDataContextToContent

Gets or sets a value indication whether the data context of the tab item should be assigned as DataContext of the content area when the selection changes. The default is true.

Declaration

public virtual bool PropagateItemDataContextToContent { get; set; }

Property Value

System.Boolean

Remarks

In Silverlight the DataContext is inherited visually and it may be expected that the content of a tab item will have its DataContext. This property specifies that the DataContext of the content area will be changed to assure this.

ReorderTabRows

Gets or sets whether the tab item rows would be reordered when selected. This is a dependency property.

Declaration

[SRDescription("TabControlReorderTabRowsDescription")]
[SRCategory("BehaviourCategory")]
public virtual bool ReorderTabRows { get; set; }

Property Value

System.Boolean

Remarks

The ReorderTabRows property governs the behavior of the tab items when selected. Its effect can only be observed when more than one row of tab items are present.

Setting the property to true would make the rows in the TabStrip change place so that the selected item is always in the row nearest to the presented content (i.e. the bottommost row in a Top position, the rightmost column in a Left position, etc.)

Please note that the index of each item remains the same even when reordered.

The default value is true.

SelectedContent

Gets the content of the selected item. This is a dependency property.

Declaration

public virtual object SelectedContent { get; set; }

Property Value

System.Object

Remarks

The SelectedContent property returns the content of the currently selected item.

If no items are selected, the property would return null.

SelectedContentTemplate

Gets the content template of the currently selected item. Do not set this property because it is changed internally. This is a dependency property.

Declaration

public virtual DataTemplate SelectedContentTemplate { get; set; }

Property Value

System.Windows.DataTemplate

Remarks

The ContentTemplate property returns the content template of the currently selected item.

Note that the property cannot be set. To change the ContentTemplate of the tab items, use the System.Windows.Controls.ItemsControl.ItemTemplate and System.Windows.Controls.ItemsControl.ItemTemplateSelector properties if an System.Windows.Controls.ItemsControl.ItemsSource has been provided. Alternatively the System.Windows.Controls.ContentControl.ContentTemplate can be used to assign a template on a per-item basis.

SelectedContentTemplateSelector

Gets the DataTemplateSelector for the currently selected item. Do not set this property because it is changed internally. This is a dependency property.

Declaration

[SRCategory("AppearanceCategory")]
public virtual DataTemplateSelector SelectedContentTemplateSelector { get; set; }

Property Value

System.Windows.Controls.DataTemplateSelector

SelectedItemRemoveBehaviour

Determines what item should be selected when SelectedItem is removed.

Declaration

public SelectedItemRemoveBehaviour SelectedItemRemoveBehaviour { get; set; }

Property Value

SelectedItemRemoveBehaviour

SelectedItems

SelectedItems property is not supported by this control.

Declaration

public IList SelectedItems { get; }

Property Value

System.Collections.IList

SupressSelectedContentTemplateReapplying

Gets or sets a value indicating whether the ContentPresenter rendering the tab items must refresh its data template on selection change. This property must be use in case when visual objects are used in the view model child collection bound to the tab control.

Declaration

public virtual bool SupressSelectedContentTemplateReapplying { get; set; }

Property Value

System.Boolean

TabFlags

Gets the flags.

Declaration

protected RadTabControlBase.TabControlState TabFlags { get; }

Property Value

RadTabControlBase.TabControlState

TabStrip

Gets or sets the tab strip. The tab strip visually represents the headers of tab items.

Declaration

protected Panel TabStrip { get; set; }

Property Value

System.Windows.Controls.Panel

The tab strip.

Methods

AddDropDownClosedHandler(UIElement, DropDownEventHandler)

Adds a handler to the target for the DropDownClosed routed event.

Declaration

public static void AddDropDownClosedHandler(UIElement target, DropDownEventHandler handler)

Parameters

System.Windows.UIElement target

The target element to add a handler to.

DropDownEventHandler handler

The handler to add for this event.

AddDropDownOpenedHandler(UIElement, DropDownEventHandler)

Adds a handler to the target for the DropDownOpened routed event.

Declaration

public static void AddDropDownOpenedHandler(UIElement target, DropDownEventHandler handler)

Parameters

System.Windows.UIElement target

The target element to add a handler to.

DropDownEventHandler handler

The handler to add for this event.

ChangeVisualState(Boolean)

Updates the visual states of the control.

Declaration

protected virtual void ChangeVisualState(bool useTransitions)

Parameters

System.Boolean useTransitions

Identifies whether the transitions should be used.

ClearContentSafely()

Clears all ContentPresenter elements inside the ContentElementStorage template part and clears the ContentElement template part. Also clears the ContentElementStorage children used to represent content from different tab items.

Declaration

protected void ClearContentSafely()

GetContainer()

Returns a new instance of the control that implements the IRadTabItem interface.

Declaration

protected virtual IRadTabItem GetContainer()

Returns

IRadTabItem

GetContainerForItemOverride()

Creates the element that is used to display the given item.

Declaration

protected override DependencyObject GetContainerForItemOverride()

Returns

System.Windows.DependencyObject

GoToState(Boolean, String[])

Attempts to move the control to one of the states in the list.

Declaration

protected void GoToState(bool useTransitions, params string[] stateNames)

Parameters

System.Boolean useTransitions

Indicates whether transitions should be used.

System.String[] stateNames

The names of the states that should be reached.

IsItemItsOwnContainerOverride(Object)

Determines if the specified item is (or is eligible to be) its own container.

Declaration

protected override bool IsItemItsOwnContainerOverride(object item)

Parameters

System.Object item

The item to check.

Returns

System.Boolean

True if the item is (or is eligible to be) its own container; otherwise, false.

IsSelectionNonBoundAtClientSide()

Determines of user has no bindings to SelectedIndex or SelectedItem properties.

Declaration

protected virtual bool IsSelectionNonBoundAtClientSide()

Returns

System.Boolean

OnPreviewSelectionChanged(SelectionChangedEventArgs)

Raises the PreviewSelectionChangedEvent.

Declaration

protected virtual void OnPreviewSelectionChanged(SelectionChangedEventArgs e)

Parameters

System.Windows.Controls.SelectionChangedEventArgs e

OnSelectionChanged(RadSelectionChangedEventArgs)

Raises the SelectionChanged routed event.

Declaration

protected virtual void OnSelectionChanged(RadSelectionChangedEventArgs e)

Parameters

RadSelectionChangedEventArgs e

RemoveDropDownClosedHandler(UIElement, DropDownEventHandler)

Removes a handler to the target for the DropDownClosed routed event.

Declaration

public static void RemoveDropDownClosedHandler(UIElement target, DropDownEventHandler handler)

Parameters

System.Windows.UIElement target

The target element to remove a handler from.

DropDownEventHandler handler

The handler to remove for this element.

RemoveDropDownOpenedHandler(UIElement, DropDownEventHandler)

Removes a handler to the target for the DropDownOpened routed event.

Declaration

public static void RemoveDropDownOpenedHandler(UIElement target, DropDownEventHandler handler)

Parameters

System.Windows.UIElement target

The target element to remove a handler from.

DropDownEventHandler handler

The handler to remove for this element.

Selector_SelectionChanged(Object, SelectionChangedEventArgs)

Handles the System.Windows.Controls.Primitives.Selector.SelectionChanged event of the Selector control.

Declaration

protected virtual void Selector_SelectionChanged(object sender, SelectionChangedEventArgs e)

Parameters

System.Object sender

The source of the event.

System.Windows.Controls.SelectionChangedEventArgs e

The instance containing the event data.

UpdateFocusOnSelectionChange()

Updates the focus. This method should be called after selection of tab item in order to focus the appropriate element. If the focus is outside the tab or in the contents of the previously selected tab item then the first element in the selected tab contents will be focused. If the TabStrip is focused calling this method will focus the newly selected tab header.

Declaration

protected virtual void UpdateFocusOnSelectionChange()

UpdateSelectedContentProperties()

Updates the selected content properties SelectedContent, SelectedContentTemplate and SelectedContentTemplateSelector. This method must be implemented appropriately in the deriving class. Selected content properties are used when representing the content of selected tab item.

Declaration

protected virtual void UpdateSelectedContentProperties()

UpdateTabRows()

Visually updates the tab rows.

Declaration

protected virtual void UpdateTabRows()

Events

DropDownClosed

An event that is raised when the DropDownMenu is closed. This is a RoutedEvent.

Declaration

public virtual event DropDownEventHandler DropDownClosed

Event Type

DropDownEventHandler

DropDownOpened

An event that is raised when the DropDownMenu is opened. This is a RoutedEvent.

Declaration

public virtual event DropDownEventHandler DropDownOpened

Event Type

DropDownEventHandler

PreviewSelectionChanged

The preview event for SelectionChanged event. Handling this event rollbacks the selection. This is a RoutedEvent.

Declaration

public event RadSelectionChangedEventHandler PreviewSelectionChanged

Event Type

RadSelectionChangedEventHandler

SelectionChanged

Occurs when a changed has been made to the selection. This is a RoutedEvent.

Declaration

[SRDescription("TabControlSelectionChangedDescription")]
public event RadSelectionChangedEventHandler SelectionChanged

Event Type

RadSelectionChangedEventHandler

Extension Methods

CollectionExtensions.ToEnumerable<T>(T)

EnumerableExtensions.ToEnumerable<T>(T)