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docs/api/Nodify_Interactivity_IKeyboardNavigationLayerGroup.md

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+# IKeyboardNavigationLayerGroup Interface  
+  
+**Namespace:** Nodify.Interactivity  
+  
+**Assembly:** Nodify  
+  
+**Implements:** [IReadOnlyCollection\<IKeyboardNavigationLayer\>](https://docs.microsoft.com/en-us/dotnet/api/System.Collections.Generic.IReadOnlyCollection-1)  
+  
+**Derived:** [NodifyEditor](Nodify_NodifyEditor)  
+  
+**References:** [IKeyboardNavigationLayer](Nodify_Interactivity_IKeyboardNavigationLayer), [KeyboardNavigationLayerId](Nodify_Interactivity_KeyboardNavigationLayerId)  
+  
+Represents a group of keyboard navigation layers that can be activated and navigated through.  
+  
+```csharp  
+public interface IKeyboardNavigationLayerGroup : IReadOnlyCollection<IKeyboardNavigationLayer>  
+```  
+  
+## Properties  
+  
+### ActiveNavigationLayer  
+  
+The current active keyboard navigation layer in the group, if any.  
+  
+```csharp  
+public virtual IKeyboardNavigationLayer ActiveNavigationLayer { get; set; }  
+```  
+  
+**Property Value**  
+  
+[IKeyboardNavigationLayer](Nodify_Interactivity_IKeyboardNavigationLayer)  
+  
+## Methods  
+  
+### ActivateNavigationLayer(KeyboardNavigationLayerId)  
+  
+Activates the specified keyboard navigation layer, making it the active layer for focus management.  
+  
+```csharp  
+public virtual bool ActivateNavigationLayer(KeyboardNavigationLayerId layerId);  
+```  
+  
+**Parameters**  
+  
+`layerId` [KeyboardNavigationLayerId](Nodify_Interactivity_KeyboardNavigationLayerId): The navigation layer id to activate.  
+  
+**Returns**  
+  
+[Boolean](https://docs.microsoft.com/en-us/dotnet/api/System.Boolean): Returns true if the navigation layer was activated, false otherwise.  
+  
+### ActivateNextNavigationLayer()  
+  
+Activates the next keyboard navigation layer in the group, allowing focus to be restored to the last focused element in that layer.  
+  
+```csharp  
+public virtual bool ActivateNextNavigationLayer();  
+```  
+  
+**Returns**  
+  
+[Boolean](https://docs.microsoft.com/en-us/dotnet/api/System.Boolean): Returns true if the navigation layer was activated, false otherwise.  
+  
+### ActivatePreviousNavigationLayer()  
+  
+Activates the previous keyboard navigation layer in the group, allowing focus to be restored to the last focused element in that layer.  
+  
+```csharp  
+public virtual bool ActivatePreviousNavigationLayer();  
+```  
+  
+**Returns**  
+  
+[Boolean](https://docs.microsoft.com/en-us/dotnet/api/System.Boolean): Returns true if the navigation layer was activated, false otherwise.  
+  
+### RegisterNavigationLayer(IKeyboardNavigationLayer)  
+  
+Registers a new keyboard navigation layer to the group, allowing it to handle focus movement and restoration.  
+  
+```csharp  
+public virtual bool RegisterNavigationLayer(IKeyboardNavigationLayer layer);  
+```  
+  
+**Parameters**  
+  
+`layer` [IKeyboardNavigationLayer](Nodify_Interactivity_IKeyboardNavigationLayer): The navigation layer.  
+  
+**Returns**  
+  
+[Boolean](https://docs.microsoft.com/en-us/dotnet/api/System.Boolean)  
+  
+### RemoveNavigationLayer(KeyboardNavigationLayerId)  
+  
+Removes the specified keyboard navigation layer from the group.  
+  
+```csharp  
+public virtual bool RemoveNavigationLayer(KeyboardNavigationLayerId layerId);  
+```  
+  
+**Parameters**  
+  
+`layerId` [KeyboardNavigationLayerId](Nodify_Interactivity_KeyboardNavigationLayerId): The navigation layer id.  
+  
+**Returns**  
+  
+[Boolean](https://docs.microsoft.com/en-us/dotnet/api/System.Boolean): Returns true if the layer was removed, false otherwise.  
+  
+## Events  
+  
+### ActiveNavigationLayerChanged  
+  
+Event that is raised when the active keyboard navigation layer changes.  
+  
+```csharp  
+public virtual event Action<KeyboardNavigationLayerId> ActiveNavigationLayerChanged;  
+```  
+  
+**Event Type**  
+  
+[Action\<KeyboardNavigationLayerId\>](https://docs.microsoft.com/en-us/dotnet/api/System.Action-1)  
+