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)

public sealed class XmlDocumentSchema : IDataSourceSchema
public final class XmlDocumentSchema implements IDataSourceSchema
public final class XmlDocumentSchema implements IDataSourceSchema
Not applicable.

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();
    XDoc.Load(currentContext.Server.MapPath(fileName));

    // 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);
        treeVw.Nodes.Add(NewNode);
        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.ChildNodes.Add(NewNode);
            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);
                CurNode.ChildNodes.Add(NewNode);
            }
            // Select the parent of the current child
            CurNode = CurNode.Parent;
        }
        // Select the parent of the current child
        CurNode = CurNode.Parent;
    }
}

System.Object
  System.Web.UI.Design.XmlDocumentSchema

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 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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