## SubDocument class

Represents a **SubDocument** - which is a reference to an externally stored document.

To learn more, visit the [Aspose.Words Document Object Model (DOM)](https://docs.aspose.com/words/net/aspose-words-document-object-model/) documentation article.

```csharp
public class SubDocument : Node
```

## Properties

| Name | Description |
| --- | --- |
| [CustomNodeId](../../aspose.words/node/customnodeid/) { get; set; } | Specifies custom node identifier. |
| virtual [Document](../../aspose.words/node/document/) { get; } | Gets the document to which this node belongs. |
| virtual [IsComposite](../../aspose.words/node/iscomposite/) { get; } | Returns `true` if this node can contain other nodes. |
| [NextSibling](../../aspose.words/node/nextsibling/) { get; } | Gets the node immediately following this node. |
| override [NodeType](../../aspose.words/subdocument/nodetype/) { get; } | Returns SubDocument. |
| [ParentNode](../../aspose.words/node/parentnode/) { get; } | Gets the immediate parent of this node. |
| [PreviousSibling](../../aspose.words/node/previoussibling/) { get; } | Gets the node immediately preceding this node. |
| [Range](../../aspose.words/node/range/) { get; } | Returns a [`Range`](../range/) object that represents the portion of a document that is contained in this node. |

## Methods

| Name | Description |
| --- | --- |
| override [Accept](../../aspose.words/subdocument/accept/)(*[DocumentVisitor](../documentvisitor/)*) | Accepts a visitor. |
| [Clone](../../aspose.words/node/clone/)(*bool*) | Creates a duplicate of the node. |
| [GetAncestor](../../aspose.words/node/getancestor/)(*[NodeType](../nodetype/)*) | Gets the first ancestor of the specified [`NodeType`](../nodetype/). |
| [GetAncestor](../../aspose.words/node/getancestor/)(*Type*) | Gets the first ancestor of the specified object type. |
| virtual [GetText](../../aspose.words/node/gettext/)() | Gets the text of this node and of all its children. |
| [NextPreOrder](../../aspose.words/node/nextpreorder/)(*[Node](../node/)*) | Gets next node according to the pre-order tree traversal algorithm. |
| [PreviousPreOrder](../../aspose.words/node/previouspreorder/)(*[Node](../node/)*) | Gets the previous node according to the pre-order tree traversal algorithm. |
| [Remove](../../aspose.words/node/remove/)() | Removes itself from the parent. |
| [ToString](../../aspose.words/node/tostring/)(*[SaveFormat](../saveformat/)*) | Exports the content of the node into a string in the specified format. |
| [ToString](../../aspose.words/node/tostring/)(*[SaveOptions](../../aspose.words.saving/saveoptions/)*) | Exports the content of the node into a string using the specified save options. |

## Remarks

In this version of Aspose.Words, `SubDocument` nodes do not provide public methods and properties to create or modify a subdocument. In this version you are not able to instantiate `SubDocument` nodes or modify existing except deleting them.

`SubDocument` can only be a child of [`Paragraph`](../paragraph/).

## Examples

Shows how to access a master document's subdocument.

```csharp
Document doc = new Document(MyDir + "Master document.docx");

NodeCollection subDocuments = doc.GetChildNodes(NodeType.SubDocument, true);
// This node serves as a reference to an external document, and its contents cannot be accessed.
SubDocument subDocument = (SubDocument)subDocuments[0];

Assert.That(subDocument.IsComposite, Is.False);
```

### See Also

* class [Node](../node/)
* namespace [Aspose.Words](../../aspose.words/)
* assembly [Aspose.Words](../../)