Foreach loop per item fill document - c#-4.0

Question

I have got a list and I want to go through each item condition and insert it into a document. The issue is that I don’t know how to find an item and go through each condition till the item changes then start again.
Item Condition Total
Bag New 3
Bag Old 5
Jacket New 2
Racket New 1
Racket old 3
Racket unknown 8
This is what I do:
foreach (DataGridViewRow row in tracker.dataGridView1.Rows)
{
if (row.Cells[0].Value != null)
{
string template = #"C:\ document.pdf";
string newFile = #"c:\"+ row.Cells[0].Value.ToString() +".pdf";
PdfReader pdfReader = new PdfReader(pdfTemplate);
PdfStamper pdfStamper = new PdfStamper(pdfReader, new FileStream(newFile, FileMode.Create));
AcroFields pdfFormFields = pdfStamper.AcroFields;
******************************************************************************
// set values for fields
if (row.Cells[1].Value.ToString() == "New")
{
pdfFormFields.SetField("Condition", row.Cells[2].Value.ToString());
}
else if (row.Cells[1].Value.ToString() == "Old")
{
pdfFormFields.SetField("Condition2", row.Cells[2].Value.ToString());
}
***************************************************************************************
pdfStamper.FormFlattening = true;
pdfStamper.Close();
}
else
break;
}
I want the code between the stars to fill the same document till row.cells[0].value changes then start the foreach again.

Answer 1

Just store the value of row.cells[0].value in a variable and compare it during each iteration of the foreach loop.
You also have to distinguish the first row from the rest, since only then a comparison of two values makes sense.
Example code:
string previousValue = null;
string currentValue = null;
bool firstRow = true;
foreach (DataGridViewRow row in tracker.dataGridView1.Rows)
{
currentValue = row.Cells[0].Value.ToString();
if (currentValue != null)
{
string template = #"C:\ document.pdf";
string newFile = #"c:\"+ currentValue +".pdf";
PdfReader pdfReader = new PdfReader(pdfTemplate);
PdfStamper pdfStamper = new PdfStamper(pdfReader, new FileStream(newFile, FileMode.Create));
AcroFields pdfFormFields = pdfStamper.AcroFields;
// Compare previous with current value
if (!firstRow && previousValue != currentValue)
{
// Difference, start new document
....
}
else
{
// Same Value
}
// When row is handled, update previous with current value, and set firstRow to false
previousValue = currentValue;
firstRow = false;
...