win打印.doc

Winform 打印报表（从网上看到的代码，感觉不错，上传以做备忘）winform 打印原理.1.先在画布上面画好表格2.然后传入要打印的数据代码如下：using System;using System.Collections.Generic;using System.Text;using System.Windows.Forms;using System.Drawing.Printing;using System.Drawing;namespace Etaocn.Util public class Printer private DataGridView dataview; private PrintDocument printDoc; /打印有效区域的宽度 int width; int height; int columns; double Rate; bool hasMorePage = false; int currRow = 0; int rowHeight = 20; /打印页数 int PageNumber; /当前打印页的行数 int pageSize = 20; /当前打印的页码 int PageIndex; int AreaHeight; private int PageWidth; /打印纸的宽度 private int PageHeight; /打印纸的高度 private int LeftMargin; /有效打印区距离打印纸的左边大小 private int TopMargin;/有效打印区距离打印纸的上面大小 private int RightMargin;/有效打印区距离打印纸的右边大小 private int BottomMargin;/有效打印区距离打印纸的下边大小 int rows; private string footer; /*/ / 构造函数 / / 要打印的DateGridView / PrintDocument用于获取打印机的设置 public Printer(DataGridView dataview, PrintDocument printDoc,string footer) this.footer = footer; this.dataview = dataview; this.printDoc = printDoc; PageIndex = 0; /获取打印数据的具体行数 this.rows = dataview.RowCount; this.columns = dataview.ColumnCount; /判断打印设置是否是横向打印 if (!printDoc.DefaultPageSettings.Landscape) PageWidth = printDoc.DefaultPageSettings.PaperSize.Width; PageHeight = printDoc.DefaultPageSettings.PaperSize.Height; else PageHeight = printDoc.DefaultPageSettings.PaperSize.Width; PageWidth = printDoc.DefaultPageSettings.PaperSize.Height; LeftMargin = printDoc.DefaultPageSettings.Margins.Left-50; TopMargin = printDoc.DefaultPageSettings.Margins.Top+60; RightMargin = printDoc.DefaultPageSettings.Margins.Right; BottomMargin = printDoc.DefaultPageSettings.Margins.Bottom-100; height = PageHeight - TopMargin - BottomMargin - 2; width = PageWidth - LeftMargin - RightMargin - 2; double tempheight = height; double temprowHeight = rowHeight; while (true) string temp = Convert.ToString(tempheight / Math.Round(temprowHeight, 3); int i = temp.IndexOf(.); double tt = 100; if (i != -1) tt = Math.Round(Convert.ToDouble(temp.Substring(temp.IndexOf(.), 3); if (tt = 0.01) rowHeight = Convert.ToInt32(temprowHeight); break; else temprowHeight = temprowHeight + 0.01; pageSize = height / rowHeight; if (rows + 1) = pageSize) pageSize = rows + 1; PageNumber = 1; else PageNumber = rows / (pageSize - 1); if (rows % (pageSize - 1) != 0) PageNumber = PageNumber + 1; /*/ / 初始化打印 / private void InitPrint() PageIndex = PageIndex + 1; if (PageIndex = PageNumber) hasMorePage = false; if (PageIndex != 1) pageSize = rows % (pageSize - 1) + 1; else hasMorePage = true; /打印头 private void DrawHeader(Graphics g) Font font = new Font(宋体, 11, FontStyle.Regular); int temptop = (rowHeight / 2) + TopMargin + 1; int templeft = LeftMargin + 1; for (int i = 0; i this.columns; i+) string headString = this.dataview.Columnsi.HeaderText; float fontHeight = g.MeasureString(headString, font).Height; float fontwidth = g.MeasureString(headString, font).Width; float temp = temptop - (fontHeight) / 3; g.DrawString(headString, font, Brushes.Black, new PointF(templeft, temp); templeft = templeft + (int)(this.dataview.Columnsi.Width / Rate) + 1; /画表格 private void DrawTable(Graphics g) Rectangle border = new Rectangle(LeftMargin, TopMargin, width, (pageSize) * rowHeight); g.DrawRectangle(new Pen(Brushes.Black, 1), border); for (int i = 1; i pageSize; i+) if (i != 1) g.DrawLine(new Pen(Brushes.Black, 1), new Point(LeftMargin + 1, (rowHeight * i) + TopMargin + 1), new Point(width + LeftMargin, (rowHeight * i) + TopMargin + 1); else g.DrawLine(new Pen(Brushes.Black, 1), new Point(LeftMargin + 1, (rowHeight * i) + TopMargin + 1), new Point(width + LeftMargin, (rowHeight * i) + TopMargin + 1); /计算出列的总宽度和打印纸比率 Rate = Convert.ToDouble(GetDateViewWidth() / Convert.ToDouble(width); int tempLeft = LeftMargin + 1; int endY = (pageSize) * rowHeight + TopMargin; for (int i = 1; i columns; i+) tempLeft = tempLeft + 1 + (int)(this.dataview.Columnsi - 1.Width / Rate); g.DrawLine(new Pen(Brushes.Black, 1), new Point(tempLeft, TopMargin), new Point(tempLeft, endY); /*/ / 获取打印的列的总宽度 / / private int GetDateViewWidth() int total = 0; for (int i = 0; i this.columns; i+) total = total + this.dataview.Columnsi.Width; return total; /打印行数据 private void DrawRows(Graphics g) Font font = new Font(宋体, 11, FontStyle.Regular); int temptop = (rowHeight / 2) + TopMargin + 1 + rowHeight; for (int i = currRow; i pageSize + currRow - 1; i+) int templeft = LeftMargin + 1; for (int j = 0; j columns; j+) string headString = this.dataview.Rowsi.Cellsj.Value.ToString(); float fontHeight = g.MeasureString(headString, font).Height; float fontwidth = g.MeasureString(headString, font).Width; float temp = temptop - (fontHeight) / 3; while (true) if (fontwidth = (int)(this.dataview.Columnsj.Width / Rate) break; else headString = headString.Substring(0, headString.Length - 1); fontwidth = g.MeasureString(headString, font).Width; g.DrawString(headString, font, Brushes.Black, new PointF(templeft, temp); templeft = templeft + (int)(this.dataview.Columnsj.Width / Rate) + 1; temptop = temptop + rowHeight; currRow = pageSize + currRow - 1; AreaHeight = temptop; /*/ / 在PrintDocument中的PrintPage方法中调用 / / 传入PrintPage中PrintPageEventArgs中的Graphics / 是否还有打印页 有返回true，无则返回false public bool Print(Graphics g) InitPrint(); DrawTable(g); DrawHeader(g); DrawRows(g); /打印页码 string pagestr = PageIndex + /