Class LogicalTreeHelper

Provides static helper methods for querying objects in the logical tree.

Inheritance

System.Object

LogicalTreeHelper

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: System.Windows

Assembly: OpenSilver.dll

Syntax

public static class LogicalTreeHelper

Methods

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FindLogicalNode(DependencyObject, String)

Attempts to find and return an object that has the specified name. The search starts from the specified object and continues into subnodes of the logical tree.

Declaration

public static DependencyObject FindLogicalNode(DependencyObject logicalTreeNode, string elementName)

Parameters

Type	Name	Description
DependencyObject	logicalTreeNode	The object to start searching from.
System.String	elementName	The name of the object to find.

Returns

Type	Description
DependencyObject	The object with the matching name, if one is found; returns null if no matching name was found in the logical tree.

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GetChildren(DependencyObject)

Returns the collection of immediate child objects of the specified object, by processing the logical tree.

Declaration

public static IEnumerable GetChildren(DependencyObject current)

Parameters

Type	Name	Description
DependencyObject	current	The object from which to start processing the logical tree.

Returns

Type	Description
System.Collections.IEnumerable	The enumerable collection of immediate child objects from the logical tree of the specified object.

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GetChildren(FrameworkElement)

Returns the collection of immediate child objects of the specified FrameworkElement by processing the logical tree.

Declaration

public static IEnumerable GetChildren(FrameworkElement current)

Parameters

Type	Name	Description
FrameworkElement	current	The object from which to start processing the logical tree.

Returns

Type	Description
System.Collections.IEnumerable	The enumerable collection of immediate child objects starting from current in the logical tree.

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GetParent(DependencyObject)

Returns the parent object of the specified object by processing the logical tree.

Declaration

public static DependencyObject GetParent(DependencyObject current)

Parameters

Type	Name	Description
DependencyObject	current	The object to find the parent object for.

Returns

Type	Description
DependencyObject	The requested parent object.

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GetParent(FrameworkElement)

Returns the parent object of the specified object by processing the logical tree.

Declaration

public static DependencyObject GetParent(FrameworkElement current)

Parameters

Type	Name	Description
FrameworkElement	current	The object to find the parent object for.

Returns

Type	Description
DependencyObject	The requested parent object.