Class LogicalTree

Defines a collection of extensions methods for UI.

Inheritance

System.Object

LogicalTree

Namespace: Syncfusion.UI.Xaml.Core

Assembly: Syncfusion.Core.WinUI.dll

Syntax

public static class LogicalTree : Object

Methods

FindChild<T>(FrameworkElement)

Find first logical child control of a specified type.

Declaration

public static T FindChild<T>(this FrameworkElement element)
    where T : FrameworkElement

Parameters

Type	Name	Description
Microsoft.UI.Xaml.FrameworkElement	element	Parent element.

Returns

Type	Description
T	Child control or null if not found.

Type Parameters

Name	Description
T	Type to search for.

FindChildByName(FrameworkElement, String)

Find logical child control using its name.

Declaration

public static FrameworkElement FindChildByName(this FrameworkElement element, string name)

Parameters

Type	Name	Description
Microsoft.UI.Xaml.FrameworkElement	element	Parent element.
System.String	name	Name of the control to find.

Returns

Type	Description
Microsoft.UI.Xaml.FrameworkElement	Child control or null if not found.

FindChildren<T>(FrameworkElement)

Find all logical child controls of the specified type.

Declaration

public static IEnumerable<T> FindChildren<T>(this FrameworkElement element)
    where T : FrameworkElement

Parameters

Type	Name	Description
Microsoft.UI.Xaml.FrameworkElement	element	Parent element.

Returns

Type	Description
System.Collections.Generic.IEnumerable<T>	Child controls or empty if not found.

Type Parameters

Name	Description
T	Type to search for.

FindParent<T>(FrameworkElement)

Find first logical parent control of a specified type.

Declaration

public static T FindParent<T>(this FrameworkElement element)
    where T : FrameworkElement

Parameters

Type	Name	Description
Microsoft.UI.Xaml.FrameworkElement	element	Child element.

Returns

Type	Description
T	Parent control or null if not found.

Type Parameters

Name	Description
T	Type to search for.

FindParentByName(FrameworkElement, String)

Finds the logical parent element with the given name or returns null.

Declaration

public static FrameworkElement FindParentByName(this FrameworkElement element, string name)

Parameters

Type	Name	Description
Microsoft.UI.Xaml.FrameworkElement	element	Child element.
System.String	name	Name of the control to find.

Returns

Type	Description
Microsoft.UI.Xaml.FrameworkElement	Parent control or null if not found.

GetContentControl(FrameworkElement)

Retrieves the Content control of this element as defined by the ContentPropertyAttribute.

Declaration

public static UIElement GetContentControl(this FrameworkElement element)

Parameters

Type	Name	Description
Microsoft.UI.Xaml.FrameworkElement	element	Parent element.

Returns

Type	Description
Microsoft.UI.Xaml.UIElement	Child Content control or null if not available.