1.先創(chuàng)建一個(gè)類文件PrintDataGridView代碼如下：

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using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Drawing;

using System.Data;

using System.Data.SqlClient;

using System.Drawing.Printing;

using System.Windows.Forms;

namespace MyText

{

  class PrintDataGridView

  {

    private static List CellPrintList = new List();

    private static PageSetupDialog pageSetup =null;

    private static int printRowCount = 0;

    private static bool IsPrint = true;

    private static bool IsRole = true;

    private static int PoXTmp = 0;

    private static int PoYTmp = 0;

    private static int WidthTmp = 0;

    private static int HeightTmp = 0;

    private static int RowIndex = 0;

    ///

    /// 打印DataGridView控件

    ///

    /// DataGridView控件

    /// 是否包括列標(biāo)題

    /// 為 System.Drawing.Printing.PrintDocument.PrintPage 事件提供數(shù)據(jù)。

    /// 起始X坐標(biāo)

    /// 起始Y坐標(biāo)

    public static void Print(DataGridView dataGridView, bool includeColumnText, PrintPageEventArgs eValue, ref int PoX, ref int PoY)

    {

      pageSetup = new PageSetupDialog();

      pageSetup.PageSettings = eValue.PageSettings;

      //pageSetup.Document;

      pageSetup.ShowDialog();

      try

      {

        if (PrintDataGridView.IsPrint)

        {

          PrintDataGridView.printRowCount = 0;

          PrintDataGridView.IsPrint = false;

          PrintDataGridView.DataGridViewCellVsList(dataGridView, includeColumnText);

          if (PrintDataGridView.CellPrintList.Count==0)

            return;

          if (PoX > eValue.MarginBounds.Left)

            PrintDataGridView.IsRole = true;

          else

            PrintDataGridView.IsRole = false;

          PrintDataGridView.PoXTmp = PoX;

          PrintDataGridView.PoYTmp = PoY;

          PrintDataGridView.RowIndex = 0;

          WidthTmp = 0;

          HeightTmp = 0;

        }

        if (PrintDataGridView.printRowCount!=0)

        {

          if (IsRole)

          {

            PoX = PoXTmp = eValue.MarginBounds.Left;

            PoY = PoYTmp = eValue.MarginBounds.Top;

          }

          else

          {

            PoX = PoXTmp;

            PoY = PoYTmp;

          }

        }

        while (PrintDataGridView.printRowCount < PrintDataGridView.CellPrintList.Count)

        {

          DataGridViewCellPrint CellPrint = CellPrintList[PrintDataGridView.printRowCount];

          if (RowIndex == CellPrint.RowIndex)

            PoX = PoX + WidthTmp;

          else

          {

            PoX = PoXTmp;

            PoY = PoY + HeightTmp;

            if (PoY + HeightTmp > eValue.MarginBounds.Bottom)

            {

              HeightTmp = 0;

              eValue.HasMorePages = true;

              return;

            }

          }

          using (SolidBrush solidBrush = new SolidBrush(CellPrint.BackColor))

          {

            RectangleF rectF1 = new RectangleF(PoX, PoY, CellPrint.Width, CellPrint.Height);

            eValue.Graphics.FillRectangle(solidBrush, rectF1);

            using (Pen pen = new Pen(Color.Black, 1))

              eValue.Graphics.DrawRectangle(pen, Rectangle.Round(rectF1));

            solidBrush.Color = CellPrint.ForeColor;

            eValue.Graphics.DrawString(CellPrint.FormattedValue, CellPrint.Font, solidBrush, new Point(PoX + 2, PoY + 3));

          }

          WidthTmp = CellPrint.Width;

          HeightTmp = CellPrint.Height;

          RowIndex = CellPrint.RowIndex;

          PrintDataGridView.printRowCount++;

        }

        PoY = PoY + HeightTmp;

        eValue.HasMorePages = false;

        PrintDataGridView.IsPrint = true;

      }

      catch(Exception ex)

      {

        eValue.HasMorePages = false;

        PrintDataGridView.IsPrint = true;

        throw ex;

      }

    }

    ///

    /// 將DataGridView控件內(nèi)容轉(zhuǎn)變到 CellPrintList

    ///

    /// DataGridView控件

    /// 是否包括列標(biāo)題

    private static void DataGridViewCellVsList(DataGridView dataGridView, bool includeColumnText)

    {

      CellPrintList.Clear();

      try

      {

        int rowsCount = dataGridView.Rows.Count;

        int colsCount = dataGridView.Columns.Count;

        //最后一行是供輸入的行時(shí)，不用讀數(shù)據(jù)。

        if (dataGridView.Rows[rowsCount - 1].IsNewRow)

          rowsCount--;

        //包括列標(biāo)題

        if (includeColumnText)

        {

          for (int columnsIndex = 0; columnsIndex < colsCount; columnsIndex++)

          {

            if (dataGridView.Columns[columnsIndex].Visible)

            {

              DataGridViewCellPrint CellPrint = new DataGridViewCellPrint();

              CellPrint.FormattedValue = dataGridView.Columns[columnsIndex].HeaderText;

              CellPrint.RowIndex = 0;

              CellPrint.ColumnIndex = columnsIndex;

              CellPrint.Font = dataGridView.Columns[columnsIndex].HeaderCell.Style.Font;

              CellPrint.BackColor = Color.Orange;// dataGridView.ColumnHeadersDefaultCellStyle.BackColor;

              CellPrint.ForeColor = dataGridView.ColumnHeadersDefaultCellStyle.ForeColor;

              CellPrint.Width = dataGridView.Columns[columnsIndex].Width;

              CellPrint.Height = dataGridView.ColumnHeadersHeight;

              CellPrintList.Add(CellPrint);

            }

          }

        }

        //讀取單元格數(shù)據(jù)

        for (int rowIndex = 0; rowIndex < rowsCount; rowIndex++)

        {

          for (int columnsIndex = 0; columnsIndex < colsCount; columnsIndex++)

          {

            if (dataGridView.Columns[columnsIndex].Visible)

            {

              DataGridViewCellPrint CellPrint = new DataGridViewCellPrint();

              CellPrint.FormattedValue = dataGridView.Rows[rowIndex].Cells[columnsIndex].FormattedValue.ToString();

              if (includeColumnText)

                CellPrint.RowIndex = rowIndex + 1;//假如包括列標(biāo)題則從行號(hào)1開(kāi)始

              else

                CellPrint.RowIndex = rowIndex;

              CellPrint.ColumnIndex = columnsIndex;

              CellPrint.Font = dataGridView.Rows[rowIndex].Cells[columnsIndex].Style.Font;

              System.Drawing.Color TmpColor = System.Drawing.Color.Empty;

              if (System.Drawing.Color.Empty != dataGridView.Rows[rowIndex].Cells[columnsIndex].Style.BackColor)

                TmpColor = dataGridView.Rows[rowIndex].Cells[columnsIndex].Style.BackColor;

              else if (System.Drawing.Color.Empty != dataGridView.Rows[rowIndex].DefaultCellStyle.BackColor)

                TmpColor = dataGridView.Rows[rowIndex].DefaultCellStyle.BackColor;

              else

                TmpColor = dataGridView.DefaultCellStyle.BackColor;

              CellPrint.BackColor = TmpColor;

              TmpColor = System.Drawing.Color.Empty;

              if (System.Drawing.Color.Empty != dataGridView.Rows[rowIndex].Cells[columnsIndex].Style.ForeColor)

                TmpColor = dataGridView.Rows[rowIndex].Cells[columnsIndex].Style.ForeColor;

              else if (System.Drawing.Color.Empty != dataGridView.Rows[rowIndex].DefaultCellStyle.ForeColor)

                TmpColor = dataGridView.Rows[rowIndex].DefaultCellStyle.ForeColor;

              else

                TmpColor = dataGridView.DefaultCellStyle.ForeColor;

              CellPrint.ForeColor = TmpColor;

              CellPrint.Width = dataGridView.Columns[columnsIndex].Width;

              CellPrint.Height = dataGridView.Rows[rowIndex].Height;

              CellPrintList.Add(CellPrint);

            }

          }

        }

      }

      catch { throw; }

    }

private class DataGridViewCellPrint

    {

      private string _FormattedValue = "";

      private int _RowIndex = -1;

      private int _ColumnIndex = -1;

      private System.Drawing.Color _ForeColor = System.Drawing.Color.Black;

      private System.Drawing.Color _BackColor = System.Drawing.Color.White;

      private int _Width = 100;

      private int _Height = 23;

      private System.Drawing.Font _Font = new System.Drawing.Font("宋體", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));

      ///

      /// 獲取或設(shè)置單元格的字體。

      ///

      public System.Drawing.Font Font

      {

        set { if (null != value) _Font = value; }

        get { return _Font; }

      }

      ///

      /// 獲取為顯示進(jìn)行格式化的單元格的值。

      ///

      public string FormattedValue

      {

        set { _FormattedValue = value; }

        get { return _FormattedValue; }

      }

      ///

      /// 獲取或設(shè)置列的當(dāng)前寬度 （以像素為單位）。默認(rèn)值為 100。

      ///

      public int Width

      {

        set { _Width = value; }

        get { return _Width; }

      }

      ///

      /// 獲取或設(shè)置列標(biāo)題行的高度（以像素為單位）。默認(rèn)值為 23。

      ///

      public int Height

      {

        set { _Height = value; }

        get { return _Height; }

      }

      ///

      /// 獲取或設(shè)置行號(hào)。

      ///

      public int RowIndex

      {

        set { _RowIndex = value; }

        get { return _RowIndex; }

      }

      ///

      /// 獲取或設(shè)置列號(hào)。

      ///

      public int ColumnIndex

      {

        set { _ColumnIndex = value; }

        get { return _ColumnIndex; }

      }

      ///

      /// 獲取或設(shè)置前景色。

      ///

      public System.Drawing.Color ForeColor

      {

        set { _ForeColor = value; }

        get { return _ForeColor; }

      }

      ///

      /// 獲取或設(shè)置背景色。

      ///

      public System.Drawing.Color BackColor

      {

        set { _BackColor = value; }

        get { return _BackColor; }

      }

    }

  }

}

2.在窗體中添加PrintDocument和PriintPreviewDialog控件，同時(shí)將PriintPreviewDialog屬性中的Document屬性設(shè)為PrintDocument的名稱，否則不能實(shí)現(xiàn)打印。 再在窗體中添加一個(gè)按鈕，實(shí)現(xiàn)打印預(yù)覽功能。

雙擊PrintDocument其中的代碼如下：

 private void PrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
       {
           Font font = new Font("宋體", 12);
           e.Graphics.DrawString("菜單信息", font, Brushes.Red, 400, 20);
           e.Graphics.DrawString("時(shí)間" + DateTime.Now.ToLongDateString(), font, Brushes.Black, 20, 40);
           int x = 10;
           int y = 70;
           PrintDataGridView.Print(dgvInfo2, true, e, ref x, ref y);    //注意：PrintDataGridView該類位于上面所寫的業(yè)務(wù)邏輯層之中
       }

打印預(yù)覽按鈕的單擊事件中的代碼如下：

       private void btnPrint_Click(object sender, EventArgs e)
       {
           this.printPreviewDialog1.ShowDialog();
       }

至此 運(yùn)行程序點(diǎn)打印就可以出現(xiàn)打印預(yù)覽

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文章名稱：在WinForm中打印DataGridView操作代碼-創(chuàng)新互聯(lián)
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