ParagraphFormatBorders Property

public MultipleBorders Borders { get; }

Public ReadOnly Property Borders As MultipleBorders
	Get

// Get all border styles.
var borderStyles = (BorderStyle[])Enum.GetValues(typeof(BorderStyle));

// Create a new empty document.
var doc = new DocumentModel();

// Insert a table with 1 column and 'borderStyles.Length' rows.
doc.Sections.Add(
    new Section(doc, 
        new Table(doc, borderStyles.Length, 1, (row, column) =>
        {
            // Create a new table cell with text taken from 'borderStyles' array at index 'row'.
            var cell = new TableCell(doc, new Paragraph(doc, borderStyles[row].ToString()));

            // Set cell outside borders to red color, with width of 2 points and with border style taken from 'borderStyles' array at index 'row'.
            cell.CellFormat.Borders.SetBorders(MultipleBorderTypes.Outside, borderStyles[row], Color.Red, 2d);

            return cell;
        })));

// Document will be saved to the Desktop.
var path = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Borders.docx");

// Save the document.
doc.Save(path);

// Open the document in Microsoft Word.
System.Diagnostics.Process.Start(path);

' Get all border styles.
Dim borderStyles As BorderStyle() = System.Enum.GetValues(GetType(BorderStyle))

' Create a new empty document.
Dim doc = New DocumentModel()

' Insert a table with 1 column and 'borderStyles.Length' rows.
doc.Sections.Add(
    New Section(doc,
        New Table(doc, borderStyles.Length, 1,
            Function(row, column)
                ' Create a new table cell with text taken from 'borderStyles' array at index 'row'.
                Dim cell = New TableCell(doc, New Paragraph(doc, borderStyles(row).ToString()))

                ' Set cell outside borders to red color, with width of 2 points and with border style taken from 'borderStyles' array at index 'row'.
                cell.CellFormat.Borders.SetBorders(MultipleBorderTypes.Outside, borderStyles(row), Color.Red, 2.0)

                Return cell
            End Function)))

' Document will be saved on the Desktop.
Dim path = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Borders.docx")

' Save the document.
doc.Save(path)

' Open the document in Microsoft Word.
System.Diagnostics.Process.Start(path)