XmlDocumentSchema Class
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XmlDocumentSchema Class

Represents the structure, or schema, of an XmlDocument. This class cannot be inherited.

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

[SecurityPermissionAttribute(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public sealed class XmlDocumentSchema : IDataSourceSchema

The XmlDocumentSchema class is used by custom control designer components to list the structural elements of an XML document at design time. Use the XmlDocumentSchema class to populate lists of document elements to allow users to select document elements in UI features at design time.

The following code example uses an XmlDocumentSchema object to display the structure of an XML document in a TreeView control.

// This method fills a TreeView Web control from an XML file. 
public void FillTreeView(TreeView treeVw, string fileName)
    // Get a reference to the current HttpContext
    HttpContext currentContext = HttpContext.Current;
    int i, j, k;
    TreeNode CurNode, NewNode;

    // Create and load an XML document
    XmlDocument XDoc = new XmlDocument();

    // Get a map of the XML Document
    XmlDocumentSchema xSchema = new XmlDocumentSchema(XDoc, "");

    // Get a list of the root child views
    IDataSourceViewSchema[] RootViews = xSchema.GetViews();

    // Add each child to the TreeView 
    for (i = 0; i < RootViews.Length; i++)
        NewNode = new TreeNode(RootViews[i].Name);
        CurNode = treeVw.Nodes[i];

        // Get a list of children of this child
        IDataSourceViewSchema[] ChildViews = RootViews[i].GetChildren();
        // Add each child to the child node of the TreeView 
        for (j = 0; j < ChildViews.Length; j++)
            NewNode = new TreeNode(ChildViews[j].Name);
            CurNode = CurNode.ChildNodes[j];

            // Get a list of children of this child
            IDataSourceViewSchema[] ChildVws = ChildViews[j].GetChildren();
            // Add each child to the child node 
            for (k = 0; k < ChildVws.Length; k++)
                NewNode = new TreeNode(ChildVws[k].Name);
            // Select the parent of the current child
            CurNode = CurNode.Parent;
        // Select the parent of the current child
        CurNode = CurNode.Parent;


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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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