Hi,
Thanks for your inquiry. You can implement
INodeChangingCallback interface if you want to receive notifications when nodes are inserted or removed in the document. You can get an idea from the following example which shows how to implement custom logic over node insertion in the document by changing the font of inserted HTML content.
public void TestNodeChangingInDocument()
{
// Create a blank document object
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
// Set up and pass the object
which implements the handler methods.
doc.NodeChangingCallback = new HandleNodeChanging_FontChanger();
// Insert sample HTML content
builder.InsertHtml("Hello
World
");
doc.Save(MyDir
+ "Document.FontChanger Out.doc");
// Check that the inserted content has the correct
formatting
Run run = (Run)doc.GetChild(NodeType.Run, 0, true);
Assert.AreEqual(24.0, run.Font.Size);
Assert.AreEqual("Arial", run.Font.Name);
}
public class HandleNodeChanging_FontChanger : INodeChangingCallback
{
// Implement the NodeInserted
handler to set default font settings for every Run node inserted into the
Document
void INodeChangingCallback.NodeInserted(NodeChangingArgs args)
{
// Change the font of inserted
text contained in the Run nodes.
if (args.Node.NodeType == NodeType.Run)
{
Aspose.Words.Font font =
((Run)args.Node).Font;
font.Size = 24;
font.Name = "Arial";
}
}
void INodeChangingCallback.NodeInserting(NodeChangingArgs args)
{
// Do Nothing
}
void INodeChangingCallback.NodeRemoved(NodeChangingArgs args)
{
// Do Nothing
}
void INodeChangingCallback.NodeRemoving(NodeChangingArgs args)
{
// Do Nothing
}
}
I hope, this helps.
Best regards,