TreeNode.Collapse Method

Note: This method is new in the .NET Framework version 2.0.

Collapses the current tree node.

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

public:
void Collapse ()
public void Collapse ()
public function Collapse ()

Use the Collapse method to conveniently collapse the current node.

NoteNote

As an alternative, you can also set the Expanded property to false.

To collapse the current node and all its child nodes, consider using the CollapseAll method.

CollapseAll will collapse all the nodes in the entire tree.

The following code example demonstrates how to use the Collapse method to programmatically collapse a node 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 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0

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