Please check my code

Question

Dear All I want to subtract (minus) A from B in iTextSharp and the result will C as: C = A - B; Here is my code: PdfPCell NoOfRemittance220 = new PdfPCell(new Phrase(lblCount.ToString() - countTotal.ToString())); How it is possible please help me.

Bhuvanesh Mohankumar · Answer

Why don't you manipulate data in your code behind and assign the resultatnt value to the iTextsharp and generate PDF. Avoid manipulating in external code which is always not recommended. Example: PDF generated can be hacked and the Bill total amount can be made to $1 instead of $1000

Shovan Saha · Answer

Dear Bhuvanesh Sir I am new in code. Below is a sample here sumOthers gives me fine result but countOthers does not give me the correct result. Please help me. var countTotal = Convert.ToInt32(count1 + count2 + count3); double sumTotal = Convert.ToDouble(sum1 + sum2 + sum3); var count220 = 0; foreach (DataGridViewRow g1 in dataGridView1.Rows) { if (g1.Cells[5].Value.ToString() !=  && g1.Cells[5].Value.ToString() != null) count220 = count220 + Convert.ToInt32(g1.Cells[5].Value); } double sum220 = 0; foreach (DataGridViewRow g1 in dataGridView1.Rows) { if (g1.Cells[5].Value.ToString() !=  && g1.Cells[5].Value.ToString() != null) sum220 = sum220 + Convert.ToDouble(g1.Cells[5].Value); } var countOthers = count220 - countTotal; double sumOthers = sum220 - sumTotal; PdfPCell NoOfRemittance220 = new PdfPCell(new Phrase(countOthers.ToString())); NoOfRemittance220.Colspan = 2; NoOfRemittance220.HorizontalAlignment = Element.ALIGN_CENTER; table.AddCell(NoOfRemittance220); PdfPCell AmountBDT220 = new PdfPCell(new Phrase(sumOthers.ToString())); AmountBDT220.Colspan = 3; AmountBDT220.HorizontalAlignment = Element.ALIGN_RIGHT; table.AddCell(AmountBDT220);