Inserting images while using the drawing canvas

Aspose.Words Product Family
1

I am having trouble inserting images when there is a drawing canvas on a word document. Basically, I have this program that will look for the location of a text box and replace the text box with an image. When the text box is in a drawing canvas I get the following error: The node must be a paragraph or a direct child of a paragraph. For free
technical support, please post this error and the file in the Aspose.Words
Forums https://forum.aspose.com/c/words/8.

When the text box is not in the drawing canvas my code works fine. Is there anything special that I have to do to access text boxes in a drawing canvas?

Here is my code (VB.NET):

Try

Dim x As Integer
Dim objNC As Aspose.Words.NodeCollection
Dim objNode As Aspose.Words.Node
Dim objShape As Aspose.Words.Drawing.Shape
Dim y As Integer

Dim objdoc As New Aspose.Words.Document("C:\temp\test.doc")

Dim objDB As Aspose.Words.DocumentBuilder = New Aspose.Words.DocumentBuilder(objdoc)

objNC = objDB.Document.GetChildNodes(Aspose.Words.NodeType.Shape, True)

x = objNC.Count 'keep track of number of shapes

For y = 0 To x 'checks each node since removing a text box node exits the objNode loop

For Each objNode In objNC

'set the shape equal to the node
objShape = objNode
objDB.MoveTo(objShape)

Try
objShape = objDB.InsertImage(System.Drawing.Image.FromFile("c:\Temp\logo.jpg"), objShape.RelativeHorizontalPosition, objShape.Left, objShape.RelativeVerticalPosition, objShape.Top, objShape.Width, objShape.Height, objShape.WrapType.Square)
Catch ex As Exception
MsgBox("Invalid image " & ex.Message)
Exit For
End Try

objNode.Remove()

Next

Next

'save the file
objDB.Document.Save("c:\Temp\TestProduct.doc")

Catch ex As Exception
MsgBox("Unable to add image " & ex.Message)
End Try
2

DocumentBuilder.MoveTo can move cursor only into a paragraph. In your case you end up moving the cursor into a drawing canvas (group shape), this is not allowed.
You can do this without DocumentBuilder:

Document doc = new Document(MyPath + "Shape.ReplaceTextboxesWithImages.doc");
// This gets a live collection of all shape nodes in the document.
NodeCollection shapes = doc.GetChildNodes(NodeType.Shape, true);
// Loop through the collection using index.
// (foreach enumeration will not work since we modify the collection of shapes).
for (int i = 0; i < shapes.Count; i++)
{
    // The collection is live and we replace exactly one shape with exactly 
    // one other shape, so loop by an index that increments by 1 will work fine.
    Shape shape = (Shape)shapes;
    // Filter out all shapes that we don't need.
    if (shape.ShapeType == ShapeType.TextBox)
    {
        // Create a new shape that will replace the existing shape.
        Shape image = new Shape(doc, ShapeType.Image);
        // Load the image into the new shape.
        image.ImageData.SetImage(MyPath + "Hammer.wmf");
        // Make new shape's position to match the old shape.
        image.Left = shape.Left;
        image.Top = shape.Top;
        image.Width = shape.Width;
        image.Height = shape.Height;
        image.RelativeHorizontalPosition = shape.RelativeHorizontalPosition;
        image.RelativeVerticalPosition = shape.RelativeVerticalPosition;
        image.HorizontalAlignment = shape.HorizontalAlignment;
        image.VerticalAlignment = shape.VerticalAlignment;
        image.WrapType = shape.WrapType;
        image.WrapSide = shape.WrapSide;
        // Insert new shape after the old shape and remove the old shape.
        shape.ParentNode.InsertAfter(image, shape);
        shape.Remove();
    }
}
doc.Save(MyPath + "Shape.ReplaceTextboxesWithImages Out.doc");