Insert Table at ContentPosition

GemBox.Document
1

In our application we are using a RegEx to locate a ContentRange. We remove the text at that range and then at the range Start we insert a Table:

var position = range.LoadText(string.Empty).Start;
position.InsertRange(table.Content);

Viewing the resulting DOCX on a desktop version of Word generally looks fine. But trying to edit it at Word online (https://word.cloud.microsoft/) the tables are very narrow and squished:

Screenshot 2025-06-30 175938
Screenshot 2025-06-30 175938837×786 12.7 KB

It seems this method of inserting a table at a random location isn’t well supported by Microsoft. Is there a better way for us to do something like this?

2

For reference, here is what the document looked like before the “tokens” were replaced:

Screenshot 2025-06-30 180123
Screenshot 2025-06-30 180123844×721 8.45 KB

3

Hi,

I believe the problem occurs because the inserted table is missing column information.

Can you please share how you’re generating the table object?

Regards,
Mario

4

This is a simplified version of the what the code is for the the first example in the screenshot:

var table = new Table(documentModel);

var row = new TableRow(documentModel)
{
	RowFormat = { AllowBreakAcrossPages = false }
};
table.Rows.Add(row);

var cellFormat = new TableCellFormat
{
	VerticalAlignment = VerticalAlignment.Center,
	Padding = new Padding(0, 0, 8, 0, LengthUnit.Pixel),
};
cellFormat.Borders.SetBorders(MultipleBorderTypes.All, BorderStyle.None, GemBox.Document.Color.Empty, 0);
var cell = new TableCell(documentModel)
{
	CellFormat = cellFormat
};
row.Cells.Add(cell);

var textParagraph = new Paragraph(documentModel);
textParagraph.Content.LoadText("Corporate");
cell.Blocks.Add(textParagraph);
5

Yes, the issue is with the missing cell or column width. The online version requires you to specify this value.

For that simplified version, try this:

var table = new Table(documentModel);
table.Columns.Add(new TableColumn(60));
// ...

An alternative that you might try is to use this:

documentModel.GetPaginator(new PaginatorOptions() { UpdateTableCellWidths = true, UpdateTableColumnWidths = true });

This will calculate the cell and column widths based on GemBox.Document’s rendering engine, which might be slightly different from what Microsoft Word’s rendering engine calculates.

Regards,
Mario

6

Thanks! I will try that out. What is the unit for the TableColumn() preferredWidth? Percentage? Points?

7

It’s points, please check TableColumn.PreferredWidth.

Also, as an FYI, on cells you can specify width in points or percentages, see TableCell.CellFormat.PreferredWidth.