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TreeNode::ExpandAll Method

Expands the current node and all its child nodes.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public:
void ExpandAll()

Use the ExpandAll method to conveniently expand the current node and all its child nodes.

NoteNote:

As an alternative, you can also set the Expanded property of the current node and each of its child nodes to true.

To expand only the current node, consider using the Expand method.

ExpandAll will expand all the nodes in the entire tree.

The following code example demonstrates how to use the ExpandAll method to programmatically expand a node and all its child nodes in the TreeView control. For this example to work correctly, you must copy the sample XML data below to a file named Book.xml.

No code example is currently available or this language may not be supported.

The following code is sample XML data for the previous example.

<Book Title="Book Title">
    <Chapter Heading="Chapter 1">
        <Section Heading="Section 1">
        </Section>
        <Section Heading="Section 2">
        </Section>
    </Chapter>
    <Chapter Heading="Chapter 2">
        <Section Heading="Section 1">
        </Section>
    </Chapter>
</Book>

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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