Hiding table border in iTextSharp

Question

How can i hide the table border using iTextSharp. I am using following code to generate a file:

var document = new Document(PageSize.A4, 50, 50, 25, 25);

// Create a new PdfWriter object, specifying the output stream
var output = new MemoryStream();
var writer = PdfWriter.GetInstance(document, output);

document.Open();
PdfPTable table = new PdfPTable(3);
var bodyFont = FontFactory.GetFont("Arial", 10, Font.NORMAL);
PdfPCell cell = new PdfPCell(new Phrase("Header spanning 3 columns"));
cell.Colspan = 3;
cell.HorizontalAlignment = 1; //0=Left, 1=Centre, 2=Right
table.AddCell(cell);
Font arial = FontFactory.GetFont("Arial", 6, BaseColor.BLUE);
cell = new PdfPCell(new Phrase("Font test is here ", arial));
cell.PaddingLeft = 5f;
cell.Colspan = 1;
table.AddCell(cell);
cell = new PdfPCell(new Phrase("XYX"));
cell.Colspan = 2;
table.AddCell(cell);
cell = new PdfPCell(new Phrase("Hello World"));
cell.PaddingLeft = 5f;
cell.Colspan = 1;
table.AddCell(cell);
cell = new PdfPCell(new Phrase("XYX"));
cell.Colspan = 2;
table.AddCell(cell);



table.SpacingBefore = 5f;
document.Add(table);
document.Close();

Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment;filename=Receipt-test.pdf");
Response.BinaryWrite(output.ToArray());

Do I need to specify no borders for individual cells or I can specify no borders for table itself.

Thank you

Answer 1

Although I upvoted the answer by Martijn, I want to add a clarification.

Only cells have borders in iText; tables don't have a border. Martijn's suggestion to set the border of the default cell to NO_BORDER is correct:

table.DefaultCell.Border = Rectangle.NO_BORDER;

But it won't work for the code snippet provided in the question. The properties of the default cell are only used if iText needs to create a PdfPCell instance implicitly (for instance: if you use the addCell() method passing a Phrase as parameter).

In the code snippet provided by @Brown_Dynamite, the PdfPCell objects are created explicitly. This means that you need to set the border of each of these cells to NO_BORDER.

Usually, I write a factory class to create cells. That way, I can significantly reduce the amount of code in the class that creates the table.

Answer 2

This should do the trick:

table.DefaultCell.Border = Rectangle.NO_BORDER; 

or

table.borderwidth= 0;

Answer 3

First we can set all cell borders as 0 and After assigning all cell to table we can use the following code for for only pdfptable outer border.

        PdfPCell cell = new PdfPCell();
        cell.AddElement(t);
        cell.BorderWidthBottom=1f;
        cell.BorderWidthLeft=1f;
        cell.BorderWidthTop=1f;
        cell.BorderWidthRight = 1f;
        PdfPTable t1 = new PdfPTable(1);
        t1.AddCell(cell);

Here we can add table to one cell and can set border and again add that cell to another table and we can use as per our requirement.