在WinForm中打印DataGridView操作代码-创新互联

1.先创建一个类文件PrintDataGridView代码如下：

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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

/// 是否包括列标题

/// 为 System.Drawing.Printing.PrintDocument.PrintPage 事件提供数据。

/// 起始X坐标

/// 起始Y坐标

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;

}

///

/// 将DataGridView控件内容转变到 CellPrintList

///

/// DataGridView控件

/// 是否包括列标题

private static void DataGridViewCellVsList(DataGridView dataGridView, bool includeColumnText)

{

CellPrintList.Clear();

try

{

int rowsCount = dataGridView.Rows.Count;

int colsCount = dataGridView.Columns.Count;

//最后一行是供输入的行时，不用读数据。

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

rowsCount--;

//包括列标题

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);

}

//读取单元格数据

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;//假如包括列标题则从行号1开始

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("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));

///

/// 获取或设置单元格的字体。

///

public System.Drawing.Font Font

{

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

get { return _Font; }

}

///

/// 获取为显示进行格式化的单元格的值。

///

public string FormattedValue

{

set { _FormattedValue = value; }

get { return _FormattedValue; }

}

///

/// 获取或设置列的当前宽度（以像素为单位）。默认值为 100。

///

public int Width

{

set { _Width = value; }

get { return _Width; }

}

///

/// 获取或设置列标题行的高度（以像素为单位）。默认值为 23。

///

public int Height

{

set { _Height = value; }

get { return _Height; }

}

///

/// 获取或设置行号。

///

public int RowIndex

{

set { _RowIndex = value; }

get { return _RowIndex; }

}

///

/// 获取或设置列号。

///

public int ColumnIndex

{

set { _ColumnIndex = value; }

get { return _ColumnIndex; }

}

///

/// 获取或设置前景色。

///

public System.Drawing.Color ForeColor

{

set { _ForeColor = value; }

get { return _ForeColor; }

}

///

/// 获取或设置背景色。

///

public System.Drawing.Color BackColor

{

set { _BackColor = value; }

get { return _BackColor; }

}

2.在窗体中添加PrintDocument和PriintPreviewDialog控件，同时将PriintPreviewDialog属性中的Document属性设为PrintDocument的名称，否则不能实现打印。在WinForm中打印DataGridView操作代码再在窗体中添加一个按钮，实现打印预览功能。

双击PrintDocument其中的代码如下：

private void PrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
       {
           Font font = new Font("宋体", 12);
           e.Graphics.DrawString("菜单信息", font, Brushes.Red, 400, 20);
           e.Graphics.DrawString("时间" + 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该类位于上面所写的业务逻辑层之中
       }

打印预览按钮的单击事件中的代码如下：

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

至此运行程序点打印就可以出现打印预览

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在WinForm中打印DataGridView操作代码-创新互联

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