C# DataGridView 打印代码

2024-11-22 技术教程

初衷：由于之前遇到了这个问题在网上搜索了许久才把代码给调试好了感觉有必要自己整理一下方便“在路上”的IT们……

//打印按钮为:button6

//命名空间：（只能比我的多，不能比我的少，有时候会忘记这个最重要的地方，这是最…的…）

//三个控件：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO;

using System.Drawing.Printing;

//第一种：

#region***打印代码简洁版***

private void button6_Click(object sender, EventArgs e)

{

if (dataGridView1.Rows.Count != 0)

{

printDialog1.Document = this.printDocument1;

printDialog1.ShowDialog(); //设置打印文档

printPreviewDialog1.Document = this.printDocument1;

printPreviewDialog1.ClientSize = new System.Drawing.Size(800, 500);//设置打印预览时的页面大小

printPreviewDialog1.PrintPreviewControl.Zoom = 1; //显示百分比为 100%

printPreviewDialog1.ShowDialog();

}

else

{

MessageBox.Show("打印内容为空");

}

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)

{

int r = 50; // 设置横坐标的位置

int c = 20; // 设置纵坐标的间隔

for (int i = 0; i < dataGridView1.Rows.Count; i++)

{

for (int j = 0; j < dataGridView1.Columns.Count; j++)

{

e.Graphics.DrawString(dataGridView1.Rows[i].Cells[j].Value.ToString(), new Font("宋体", 8, FontStyle.Regular), Brushes.Black, r, c);

r = r + 100;

}

r = 50;

c += 20;

}

#endregion

//第二种，在以上命名空间的基础上：

#region***打印代码强大版***

private void button6_Click(object sender, EventArgs e)

{

printDialog1.Document = this.printDocument1;

printDialog1.ShowDialog();

PrintDataGridView pdgv = new PrintDataGridView();

pdgv.myPrint(dataGridView1, "King公司考勤时间表", "详情");

}

#endregion

//还要建一个名为PrintDataGridView类

using System;

using System.Collections.Generic;

using System.Text;

using System.Drawing.Printing;

using System.Windows.Forms;

using System.Drawing;

namespace King公司考勤时间表// 命名空间别忘了改成自己的

{

public class PrintDataGridView

{

public PrintDataGridView()

{

}

static DataGridView dgv;

//标题名称

static string titleName = "";

//第二标题名称

static string titleName2 = "";

//当前行

static int rowIndex = 0;

//当前页

static int page = 1;

//每页显示多少行

static int rowsPerPage = 0;

/// <summary>

/// 打印DataGridView

/// </summary>

/// <param name="dataGridView">要打印的DataGridView</param>

/// <param name="title">标题</param>

/// /// <param name="title2">第二标题,可以为null</param>

public void myPrint(DataGridView dataGridView, string title, string title2)

{

try

{

if (dataGridView == null)

{

return;

}

titleName = title;

titleName2 = title2;

dgv = dataGridView;

PrintPreviewDialog ppvw = new PrintPreviewDialog();

//显示比例为100%

ppvw.PrintPreviewControl.Zoom = 1.0;

PrintDocument printDoc = new PrintDocument();

//A4纸

printDoc.DefaultPageSettings.PaperSize = new PaperSize("A4", 850, 1000);

//设置边距

printDoc.DefaultPageSettings.Margins = new Margins(60, 60, 60, 60);

//设置要打印的文档

ppvw.Document = printDoc;

//最大化

((Form)ppvw).WindowState = FormWindowState.Maximized;

//当前行

rowIndex = 0;

//当前页

page = 1;

//打印事件

printDoc.PrintPage += new PrintPageEventHandler(printDoc_PrintPage);

printDoc.EndPrint += new PrintEventHandler(printDoc_EndPrint);

//打开预览

ppvw.ShowDialog();

}

catch (Exception ex)

{

MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);

}

static void printDoc_EndPrint(object sender, PrintEventArgs e)

{

//当前行

rowIndex = 0;

//当前页

page = 1;

//每页显示多少行

rowsPerPage = 0;

}

private static void printDoc_PrintPage(object sender, PrintPageEventArgs e)

{

//标题字体

Font titleFont = new Font("宋体", 16, FontStyle.Bold);

//标题尺寸

SizeF titleSize = e.Graphics.MeasureString(titleName, titleFont, e.MarginBounds.Width);

//x坐标

int x = e.MarginBounds.Left;

//y坐标

int y = Convert.ToInt32(e.MarginBounds.Top - titleSize.Height);

//边距以内纸张宽度

int pagerWidth = e.MarginBounds.Width;

//画标题

e.Graphics.DrawString(titleName, titleFont, Brushes.Black, x + (pagerWidth - titleSize.Width) / 2, y);

y += (int)titleSize.Height;

if (titleName2 != null && titleName2 != "")

{

//画第二标题

e.Graphics.DrawString(titleName2, dgv.Font, Brushes.Black, x, y);

//第二标题尺寸

SizeF titleSize2 = e.Graphics.MeasureString(titleName2, dgv.Font, e.MarginBounds.Width);

y += (int)titleSize2.Height; ;

}

//表头高度

int headerHeight = 0;

//纵轴上内容与线的距离

int padding = 6;

//所有显示列的宽度

int columnsWidth = 0;

//计算所有显示列的宽度

foreach (DataGridViewColumn column in dgv.Columns)

{

//隐藏列返回

if (!column.Visible) continue;

//所有显示列的宽度

columnsWidth += column.Width;

}

//计算表头高度

foreach (DataGridViewColumn column in dgv.Columns)

{

//列宽

int columnWidth = (int)(Math.Floor((double)column.Width / (double)columnsWidth * (double)pagerWidth));

//表头高度

int temp = (int)e.Graphics.MeasureString(column.HeaderText, column.InheritedStyle.Font, columnWidth).Height + 2 * padding;

if (temp > headerHeight) headerHeight = temp;

}

//画表头

foreach (DataGridViewColumn column in dgv.Columns)

{

//隐藏列返回

if (!column.Visible) continue;

//列宽

int columnWidth = (int)(Math.Floor((double)column.Width / (double)columnsWidth * (double)pagerWidth));

//内容居中要加的宽度

float cenderWidth = (columnWidth - e.Graphics.MeasureString(column.HeaderText, column.InheritedStyle.Font, columnWidth).Width) / 2;

if (cenderWidth < 0) cenderWidth = 0;

//内容居中要加的高度

float cenderHeight = (headerHeight + padding - e.Graphics.MeasureString(column.HeaderText, column.InheritedStyle.Font, columnWidth).Height) / 2;

if (cenderHeight < 0) cenderHeight = 0;

//画背景

e.Graphics.FillRectangle(new SolidBrush(Color.LightGray), new Rectangle(x, y, columnWidth, headerHeight));

//画边框

e.Graphics.DrawRectangle(Pens.Black, new Rectangle(x, y, columnWidth, headerHeight));

////画上边线

//e.Graphics.DrawLine(Pens.Black, x, y, x + columnWidth, y);

////画下边线

//e.Graphics.DrawLine(Pens.Black, x, y + headerHeight, x + columnWidth, y + headerHeight);

////画右边线

//e.Graphics.DrawLine(Pens.Black, x + columnWidth, y, x + columnWidth, y + headerHeight);

//if (x == e.MarginBounds.Left)

//{

// //画左边线

// e.Graphics.DrawLine(Pens.Black, x, y, x, y + headerHeight);

//}

//画内容

e.Graphics.DrawString(column.HeaderText, column.InheritedStyle.Font, new SolidBrush(column.InheritedStyle.ForeColor), new RectangleF(x + cenderWidth, y + cenderHeight, columnWidth, headerHeight));

x += columnWidth;

}

x = e.MarginBounds.Left;

y += headerHeight;

//遍历行

while (rowIndex < dgv.Rows.Count)

{

//当前行

DataGridViewRow row = dgv.Rows[rowIndex];

if (row.Visible)

{

//行高

int rowHeight = 0;

//计算行高

foreach (DataGridViewCell cell in row.Cells)

{

//当前列

DataGridViewColumn column = dgv.Columns[cell.ColumnIndex];

//隐藏列返回

if (!column.Visible || cell.Value == null) continue;

//列宽

int tmpWidth = (int)(Math.Floor((double)column.Width / (double)columnsWidth * (double)pagerWidth));

//行高

int temp = (int)e.Graphics.MeasureString(cell.Value.ToString(), column.InheritedStyle.Font, tmpWidth).Height + 2 * padding;

if (temp > rowHeight) rowHeight = temp;

}

//遍历列

foreach (DataGridViewCell cell in row.Cells)

{

//当前列

DataGridViewColumn column = dgv.Columns[cell.ColumnIndex];

//隐藏列返回

if (!column.Visible) continue;

//列宽

int columnWidth = (int)(Math.Floor((double)column.Width / (double)columnsWidth * (double)pagerWidth));

//画边框

e.Graphics.DrawRectangle(Pens.Black, new Rectangle(x, y, columnWidth, rowHeight));

if (cell.Value != null)

{

//内容居中要加的宽度

float cenderWidth = (columnWidth - e.Graphics.MeasureString(cell.Value.ToString(), cell.InheritedStyle.Font, columnWidth).Width) / 2;

if (cenderWidth < 0) cenderWidth = 0;

//内容居中要加的高度

float cenderHeight = (rowHeight + padding - e.Graphics.MeasureString(cell.Value.ToString(), cell.InheritedStyle.Font, columnWidth).Height) / 2;

if (cenderHeight < 0) cenderHeight = 0;

////画下边线

//e.Graphics.DrawLine(Pens.Black, x, y + rowHeight, x + columnWidth, y + rowHeight);

////画右边线

//e.Graphics.DrawLine(Pens.Black, x + columnWidth, y, x + columnWidth, y + rowHeight);

//if (x == e.MarginBounds.Left)

//{

// //画左边线

// e.Graphics.DrawLine(Pens.Black, x, y, x, y + rowHeight);

//}

//画内容

e.Graphics.DrawString(cell.Value.ToString(), column.InheritedStyle.Font, new SolidBrush(cell.InheritedStyle.ForeColor), new RectangleF(x + cenderWidth, y + cenderHeight, columnWidth, rowHeight));

}

x += columnWidth;

}

x = e.MarginBounds.Left;

y += rowHeight;

if (page == 1) rowsPerPage++;

//打印下一页

if (y + rowHeight > e.MarginBounds.Bottom)

{

e.HasMorePages = true;

break;

}

rowIndex++;

}

//页脚

string footer = " 第 " + page + " 页，共 " + Math.Ceiling(((double)dgv.Rows.Count / rowsPerPage)).ToString() + " 页";

//画页脚

e.Graphics.DrawString(footer, dgv.Font, Brushes.Black, x + (pagerWidth - e.Graphics.MeasureString(footer, dgv.Font).Width) / 2, e.MarginBounds.Bottom);

page++;

}

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