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[
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]NodeCollection indexer
Retrieves a node at the given index.
public Node this[int index] { get; }
Parameter | Description |
---|---|
index | An 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
- class Node
- class NodeCollection
- namespace Aspose.Words
- assembly Aspose.Words