## CreateTreeWalker(*[Node](../../node/)*) {#createtreewalker}

Create a new TreeWalker over the subtree rooted at the specified node.

```csharp
public ITreeWalker CreateTreeWalker(Node root)
```

| Parameter | Type | Description |
| --- | --- | --- |
| root | Node | node which will serve as the root for the TreeWalker. The whatToShow flags and the NodeFilter are not considered when setting this value; any node type will be accepted as the root. The currentNode of the TreeWalker is initialized to this node, whether or not it is visible. The root functions as a stopping point for traversal methods that look upward in the document structure, such as parentNode and nextNode. The root must not be null. |

### Return Value

The newly created TreeWalker.

### Exceptions

| exception | condition |
| --- | --- |
| [DOMException](../../domexception/) | NOT_SUPPORTED_ERR: Raised if the specified root is null. |

### See Also

* interface [ITreeWalker](../../../aspose.html.dom.traversal/itreewalker/)
* class [Node](../../node/)
* class [Document](../)
* namespace [Aspose.Html.Dom](../../../aspose.html.dom/)
* assembly [Aspose.HTML](../../../)

---

## CreateTreeWalker(*[Node](../../node/), long*) {#createtreewalker_1}

Create a new TreeWalker over the subtree rooted at the specified node.

```csharp
public ITreeWalker CreateTreeWalker(Node root, long whatToShow)
```

| Parameter | Type | Description |
| --- | --- | --- |
| root | Node | node which will serve as the root for the TreeWalker. The whatToShow flags and the NodeFilter are not considered when setting this value; any node type will be accepted as the root. The currentNode of the TreeWalker is initialized to this node, whether or not it is visible. The root functions as a stopping point for traversal methods that look upward in the document structure, such as parentNode and nextNode. The root must not be null. |
| whatToShow | Int64 | flag specifies which node types may appear in the logical view of the tree presented by the tree-walker. See the description of NodeFilter for the set of possible SHOW_ values.These flags can be combined using OR. |

### Return Value

The newly created TreeWalker.

### Exceptions

| exception | condition |
| --- | --- |
| [DOMException](../../domexception/) | NOT_SUPPORTED_ERR: Raised if the specified root is null. |

### See Also

* interface [ITreeWalker](../../../aspose.html.dom.traversal/itreewalker/)
* class [Node](../../node/)
* class [Document](../)
* namespace [Aspose.Html.Dom](../../../aspose.html.dom/)
* assembly [Aspose.HTML](../../../)

---

## CreateTreeWalker(*[Node](../../node/), long, [INodeFilter](../../../aspose.html.dom.traversal/inodefilter/)*) {#createtreewalker_2}

Create a new TreeWalker over the subtree rooted at the specified node.

```csharp
public ITreeWalker CreateTreeWalker(Node root, long whatToShow, INodeFilter filter)
```

| Parameter | Type | Description |
| --- | --- | --- |
| root | Node | node which will serve as the root for the TreeWalker. The whatToShow flags and the NodeFilter are not considered when setting this value; any node type will be accepted as the root. The currentNode of the TreeWalker is initialized to this node, whether or not it is visible. The root functions as a stopping point for traversal methods that look upward in the document structure, such as parentNode and nextNode. The root must not be null. |
| whatToShow | Int64 | flag specifies which node types may appear in the logical view of the tree presented by the tree-walker. See the description of NodeFilter for the set of possible SHOW_ values.These flags can be combined using OR. |
| filter | INodeFilter | NodeFilter to be used with this TreeWalker, or null to indicate no filter. |

### Return Value

The newly created TreeWalker.

### Exceptions

| exception | condition |
| --- | --- |
| [DOMException](../../domexception/) | NOT_SUPPORTED_ERR: Raised if the specified root is null. |

### See Also

* interface [ITreeWalker](../../../aspose.html.dom.traversal/itreewalker/)
* class [Node](../../node/)
* interface [INodeFilter](../../../aspose.html.dom.traversal/inodefilter/)
* class [Document](../)
* namespace [Aspose.Html.Dom](../../../aspose.html.dom/)
* assembly [Aspose.HTML](../../../)