Drawimage in for-loop prints the last image only

[hatem.ib]

I'm trying to print multiple QR images in 1 page, but when i print i receive the last image only, the Code is:

int QRLoop = Convert.ToInt32(txtSerialTo.Text) - Convert.ToInt32(txtSerialFrom.Text) + 1;
for (int i = 0; i < QRLoop; i++)
{

int iSerial = Convert.ToInt32(txtSerialFrom.Text) + i;
string QRString = iSerial.ToString() + "," + dtpDate.Value.ToShortDateString() + "," + JobNr + "," + Batch + "," + LineNr + "," + Model;
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(QRString, QRCodeGenerator.ECCLevel.L, false, false, QRCodeGenerator.EciMode.Default, -1);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(1);
pbx[i].Image = qrCode.GetGraphic(1);
}

xx = 30;
yy = 0;
int x = 0;
for(int h = 0; h < QRLoop - 1; h++)
{
    p.PrintPage += delegate (object sender1, PrintPageEventArgs e1)
    {
        e1.Graphics.DrawImage(pbx[h].Image, xx, yy);
        e1.Graphics.DrawString((h + 1).ToString(), new System.Drawing.Font("Arial", 9, FontStyle.Bold), new SolidBrush(Color.Black), new RectangleF(xx + 45, yy + 5, p.DefaultPageSettings.PrintableArea.Width, p.DefaultPageSettings.PrintableArea.Height));
    };
    xx += 91;
    x++;
    if (x == 4)
    {
        x = 0;
        xx = 30;
        yy += 47;
    }
}
p.Print();

Any help?

[ddanbe]

What type is pbx?
Did you not try to debug and set some breakpoints?

[hatem.ib]

pbx is a picturebox to save the QR code in it

[hatem.ib]

and yes i tried to debug with breakpoints and it was looping perfectly, but it prints only the last image, even i tried to do what loop does manually to check the problem, such as:

p.PrintPage += delegate (object sender1, PrintPageEventArgs e1)
{
e1.Graphics.DrawImage(pbx[0].Image, 30, 0);
e1.Graphics.DrawString((1).ToString(), new System.Drawing.Font("Arial", 9, FontStyle.Bold), new SolidBrush(Color.Black), new RectangleF(75, 5, p.DefaultPageSettings.PrintableArea.Width, p.DefaultPageSettings.PrintableArea.Height));
};

p.PrintPage += delegate (object sender1, PrintPageEventArgs e1)
{
e1.Graphics.DrawImage(pbx[1].Image, 121, 0);
e1.Graphics.DrawString((1).ToString(), new System.Drawing.Font("Arial", 9, FontStyle.Bold), new SolidBrush(Color.Black), new RectangleF(166, 5, p.DefaultPageSettings.PrintableArea.Width, p.DefaultPageSettings.PrintableArea.Height));
};

p.PrintPage += delegate (object sender1, PrintPageEventArgs e1)
{
e1.Graphics.DrawImage(pbx[2].Image, 212, 0);
e1.Graphics.DrawString((1).ToString(), new System.Drawing.Font("Arial", 9, FontStyle.Bold), new SolidBrush(Color.Black), new RectangleF(257, 5, p.DefaultPageSettings.PrintableArea.Width, p.DefaultPageSettings.PrintableArea.Height));
};

p.PrintPage += delegate (object sender1, PrintPageEventArgs e1)
{
e1.Graphics.DrawImage(pbx[3].Image, 303, 0);
e1.Graphics.DrawString((1).ToString(), new System.Drawing.Font("Arial", 9, FontStyle.Bold), new SolidBrush(Color.Black), new RectangleF(348, 5, p.DefaultPageSettings.PrintableArea.Width, p.DefaultPageSettings.PrintableArea.Height));
};

p.Print();

and it printed the 4 images perfectly!!!

[ddanbe]

When you debugged, what was the value of QRLoop?

[hatem.ib]

QRLoop Valued 16, but it could be changed, it's dynamic