DataGridView打印类

 一下这个类专门用于打印DataGridView,但是功能不是很强大 如果有个性化需求  可在此基础上简单修改

  1public class DataGridViewPrint
  2    {
  3        private DataGridView dataGridView;
  4        private PrintDocument printDocument;
  5        private PageSetupDialog pageSetupDialog;
  6        private PrintPreviewDialog printPreviewDialog;
  7
  8        public DataGridViewPrint(DataGridView dataGridView)
  9        {
 10            this.dataGridView = dataGridView;
 11            printDocument = new PrintDocument();
 12            printDocument.PrintPage += new PrintPageEventHandler(this.printDocument_PrintPage);
 13        }
 14
 15        private void printDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
 16        {
 17            int rowCount = 0;
 18            int colCount = 0;
 19            int x = 0;
 20            int y = 0;
 21            int rowGap = 20;
 22            int colGap = 5;
 23            int leftMargin = 50;
 24            Font font = new Font("Arial", 10);
 25            Font headingFont = new Font("Arial", 11, FontStyle.Underline);
 26            Font captionFont = new Font("Arial", 10, FontStyle.Bold);
 27            Brush brush = new SolidBrush(Color.Black);
 28            string cellValue = "";
 29
 30            if (dataGridView.DataSource.GetType().ToString() == "System.Data.DataTable")
 31            {
 32                rowCount = ((DataTable)dataGridView.DataSource).Rows.Count;
 33            }
 34            else if (dataGridView.DataSource.GetType().ToString() == "System.Collections.ArrayList")
 35            {
 36                rowCount = ((ArrayList)dataGridView.DataSource).Count;
 37            }
 38            colCount = dataGridView.ColumnCount;
 39
 40            
 41           
 42
 43            //print headings 
 44            y += rowGap;
 45            x = leftMargin;
 46            for (int j = 0; j < colCount; j++)
 47            {
 48                if (dataGridView.Columns[j].Width > 0)
 49                {
 50                    cellValue = dataGridView.Columns[j].HeaderText;
 51                    e.Graphics.DrawString(cellValue, headingFont, brush, x, y);
 52                    x += dataGridView.Columns[j].Width + colGap;
 53                }
 54            }
 55
 56            //print all rows 
 57            for (int i = 0; i < rowCount; i++)
 58            {
 59                y += rowGap;
 60                x = leftMargin;
 61                for (int j = 0; j < colCount; j++)
 62                {
 63                    if (dataGridView.Columns[j].Width > 0)
 64                    {
 65                        cellValue = dataGridView[i, j].ToString();
 66                        e.Graphics.DrawString(cellValue, font, brush, x, y);
 67                        x += dataGridView.Columns[j].Width + colGap;
 68                        y = y + rowGap * (cellValue.Split(new char[] { ' ', ' ' }).Length - 1);
 69                    }
 70                }
 71            }
 72            string s = cellValue;
 73            string f3 = cellValue;
 74        }
 75
 76        public PrintDocument GetPrintDocument()
 77        {
 78            return printDocument;
 79        }
 80
 81        public void Print()
 82        {
 83            try
 84            {
 85                pageSetupDialog = new PageSetupDialog();
 86                pageSetupDialog.Document = printDocument;
 87                pageSetupDialog.ShowDialog();
 88                printPreviewDialog = new PrintPreviewDialog();
 89                printPreviewDialog.Document = printDocument;
 90                printPreviewDialog.Height = 600;
 91                printPreviewDialog.Width = 800;
 92                printPreviewDialog.ShowDialog();
 93            }
 94            catch (Exception e)
 95            {
 96                throw new Exception("Printer error." + e.Message);
 97            }
 98
 99        }
    }