C# Datagridview hide first column

dataGridView1.RowHeadersVisible = false;

Remove duplicate strings from a string or int array in C#

string[] spdfIn =

{ "abc", "xyz","abc", "def", "ghi", "asdf", "ghi","xd", "abc" };

spdfIn = spdfIn.Distinct().ToArray(); 

int[] int1={1,2,3,4,4,5,1};

int1=int1.Distinct().ToArray(); 

Panel printing

private void btnPrint_Click(object sender, EventArgs e)
        {           
            System.Drawing.Printing.PrintDocument doc = new PrintDocument();
            doc.PrintPage += this.Doc_PrintPage1;
            PrintDialog dlgSettings = new PrintDialog();
            dlgSettings.Document = doc;
            //if (dlgSettings.ShowDialog() == DialogResult.OK) // hide this line default Printer is select
            {
                doc.Print();
            }
        }
        private void Doc_PrintPage1(object sender, PrintPageEventArgs e)
        {
            float x = e.MarginBounds.Left;
            float y = e.MarginBounds.Top;
            Bitmap bmp = new Bitmap(this.pnlPrint.Width, this.pnlPrint.Height);
            this.pnlPrint.DrawToBitmap(bmp, new Rectangle(0, 0, this.pnlPrint.Width, this.pnlPrint.Height));
            e.Graphics.DrawImage((Image)bmp, 0, 0);
        }

Get Default Printer paper size and Printing Text

public void getPapersize() //Get Default Printer paper size
        {
            using (System.Drawing.Printing.PrintDocument PD = new System.Drawing.Printing.PrintDocument())
            {
                foreach (System.Drawing.Printing.PaperSize P in PD.PrinterSettings.PaperSizes)
                {
                    Console.Write(P.PaperName + " ");
                    double W = P.Width / 100.0;
                    double H = P.Height / 100.0;
                    double[] M = { 1, 72, 200 };
                    for (int I = 0; I <= 2; I++)
                    {
                        MessageBox.Show((W * M[I]).ToString() + " " + (H * M[I]).ToString() + " ");
                    }

                }
            }
        }
------------------------------

public void Print(string s)
        {
            System.Drawing.Printing.PrintDocument PD = new System.Drawing.Printing.PrintDocument();

            PD.PrintController = new System.Drawing.Printing.StandardPrintController();
            PD.PrintPage += delegate(object sender1, System.Drawing.Printing.PrintPageEventArgs e1)
            {
                e1.Graphics.DrawString(s, new Font("Times New Roman", 12), new SolidBrush(Color.Black), new RectangleF(0, 0, PD.DefaultPageSettings.PrintableArea.Width, PD.DefaultPageSettings.PrintableArea.Height));

            };
            try
            {
               
                PD.Print();
            }
            catch (Exception ex)
            {
                throw new Exception("Exception Occured While Printing", ex);
            }


        }