Item

NodeCollection indexer

Retrieves a node at the given index.

public Node this[int index] { get; }
ParameterDescription
indexAn index into the collection of nodes.

Remarks

The index is zero-based.

Negative indexes are allowed and indicate access from the back of the collection. For example -1 means the last item, -2 means the second before last and so on.

If index is greater than or equal to the number of items in the list, this returns a null reference.

If index is negative and its absolute value is greater than the number of items in the list, this returns a null reference.

Examples

Shows how to traverse through a composite node’s collection of child nodes.

Document doc = new Document();

// Add two runs and one shape as child nodes to the first paragraph of this document.
Paragraph paragraph = (Paragraph)doc.GetChild(NodeType.Paragraph, 0, true);
paragraph.AppendChild(new Run(doc, "Hello world! "));

Shape shape = new Shape(doc, ShapeType.Rectangle);
shape.Width = 200;
shape.Height = 200;
// Note that the 'CustomNodeId' is not saved to an output file and exists only during the node lifetime.
shape.CustomNodeId = 100;
shape.WrapType = WrapType.Inline;
paragraph.AppendChild(shape);

paragraph.AppendChild(new Run(doc, "Hello again!"));

// Iterate through the paragraph's collection of immediate children,
// and print any runs or shapes that we find within.
NodeCollection children = paragraph.GetChildNodes(NodeType.Any, false);

Assert.AreEqual(3, paragraph.GetChildNodes(NodeType.Any, false).Count);

foreach (Node child in children)
    switch (child.NodeType)
    {
        case NodeType.Run:
            Console.WriteLine("Run contents:");
            Console.WriteLine($"\t\"{child.GetText().Trim()}\"");
            break;
        case NodeType.Shape:
            Shape childShape = (Shape)child;
            Console.WriteLine("Shape:");
            Console.WriteLine($"\t{childShape.ShapeType}, {childShape.Width}x{childShape.Height}");
            break;
    }

See Also

NodeCollection.Count NodeCollection.Add