打印datatable代码,CSharp代码库,德仔网

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【CSharp】打印datatable
作者:Ben / 发布于2015/7/15/ 612

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Windows.Forms;
	using System.Drawing;
	using System.Drawing.Printing;
	using System.Data;
	namespace PrintDemo
	{
	 class PrintInfoExt
	 {
	 public PrintInfoExt()
	 {
	 this.dataHead = "打印标题";
	 this.headFont = new Font("黑体", 18, FontStyle.Bold);
	 this.dataFont = new Font("宋体", 10);
	 this.landscape = false;
	 }
	 ///
	 /// 获取设置标题头
	 ///
	 public String dataHead { set; get; }
	 ///
	 /// 获取或设置标题格式
	 ///
	 public Font headFont { set; get; }
	 ///
	 /// 获取或设置数据字体格式
	 ///
	 public Font dataFont { set; get; }
	 ///
	 /// 设定是否是横向打印
	 ///
	 public Boolean landscape { set; get; }
	 /// <summary>
	 /// 表内容,格式化后
	 /// </summary>
	 public string[,] datas{ set; get; }
	
	 /// <summary>
	 /// 表列数
	 /// </summary>
	 public int columns { set; get; }
	 /// <summary>
	 /// 表行数
	 /// </summary>
	 public int rows { set; get; }
	 /// <summary>
	 /// 打印的当前行
	 /// </summary>
	 public int currentRow = 0;
	 /// <summary>
	 /// 当前页号
	 /// </summary>
	 public int currentPage = 0;
	
	
	 /// <summary>
	 /// 格式化表数据
	 /// </summary>
	 public void initData(DataTable dt, int width=4, int flag=1)
	 {
	 string[,] DT_data = null;
	 switch (flag)
	 {
	 case 0:
	 columns = dt.Columns.Count;
	 rows = dt.Rows.Count + 1;
	 DT_data = new string[rows, columns];
	 for (int i = 0; i < dt.Columns.Count; i++)
	 {
	 DT_data[0, i] = dt.Columns[i].ColumnName;
	 }
	 for (int i = 0; i < dt.Rows.Count; i++)
	 {
	 for (int j = 0; j < dt.Columns.Count; j++)
	 {
	 DT_data[i + 1, j] = dt.Rows[i][j].ToString();
	 }
	 }
	 break;
	
	 case 1:
	 columns = dt.Rows.Count + 1;
	 rows = dt.Columns.Count;
	 DT_data = new string[rows, columns];
	 for (int i = 0; i < dt.Columns.Count; i++)
	 {
	 DT_data[i, 0] = dt.Columns[i].ColumnName;
	 }
	 for (int i = 0; i < dt.Rows.Count; i++)
	 {
	 for (int j = 0; j <dt.Columns.Count; j++)
	 {
	 DT_data[j, i + 1] = dt.Rows[i][j].ToString();
	 }
	 }
	 break;
	 case 2:
	 rows = dt.Rows.Count + 1;
	 if (rows > width)
	 {
	 rows = width;
	 }
	 int colPlus = (dt.Rows.Count + 1) / rows;
	 int colTail = (dt.Rows.Count + 1) % rows;
	 if (colTail > 0) colPlus++;
	 columns = dt.Columns.Count * colPlus;
	 DT_data = new string[rows, columns];
	 for (int i = 0; i < dt.Columns.Count; i++)
	 {
	
	 for (int j = 0; j < colPlus; j++)//列
	 {
	 for (int k = 0; k < rows; k++)//行
	 {
	 if (j == 0 && k == 0)
	 {
	 DT_data[k, i * colPlus] = dt.Columns[i].ColumnName;
	 continue;
	 }
	 //原所在行
	 int n = (rows - 1) * j + k - 1;
	 if (k == 0 || n >= dt.Rows.Count)
	 {
	 DT_data[k, i * colPlus + j] = " ";
	 }
	 else
	 {
	 DT_data[k, i * colPlus + j] = dt.Rows[n][i].ToString();
	 }
	
	 }
	 }
	 }
	 break;
	 default:
	 MessageBox.Show("出错", "无打印类型", MessageBoxButtons.OK, MessageBoxIcon.Error);
	 break;
	 }
	 if (DT_data != null)
	 {
	 datas = DT_data;
	 }
	 }
	
	 public void printDataTable()
	 {
	 PrintDocument pd = new System.Drawing.Printing.PrintDocument();
	 PrinterSettings pss = new System.Drawing.Printing.PrinterSettings();
	 pss.DefaultPageSettings.Landscape = landscape;
	 pd.PrinterSettings = pss;
	
	 pd.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(pd_PrintPage);
	
	 PrintPreviewDialog ppd = new PrintPreviewDialog();
	 ppd.Document = pd;
	 if (datas == null)
	 {
	 MessageBox.Show("出错", "没有可以打印的数据", MessageBoxButtons.OK, MessageBoxIcon.Error);
	 }
	 else if (ppd.ShowDialog() == DialogResult.OK)
	 {
	 try
	 {
	 //pd.Print();
	 ppd.ShowDialog();
	 }
	 catch (Exception ex)
	 {
	 MessageBox.Show("出错", ex.Message, MessageBoxButtons.OK, MessageBoxIcon.Error);
	 }
	 }
	 }
	
	 private void pd_PrintPage(object sender, PrintPageEventArgs e)
	 {
	 Graphics graphic = e.Graphics;//获取绘图对象
	 int leftMargin = e.MarginBounds.Left;//左边距
	 int topMargin = e.MarginBounds.Top;//上边距
	 int yPosition = 0;//绘制字符串的纵向位置
	 int xPosition = 0;//绘制字符串的横向位置
	 string line = string.Empty;//读取的行字符串
	 float lineHeight = dataFont.GetHeight(graphic) + 4; //行高
	 int charWidth = (int)(dataFont.GetHeight(graphic) + 1);//字符宽
	 SolidBrush brush = new SolidBrush(Color.Black);//刷子
	 Rectangle rect; //内容绘制矩形
	 int linesPerPage = (int)(e.MarginBounds.Height / lineHeight);//每页可打印的行数
	 int currentLine = 0;
	 //如果首页
	 if (currentPage < 1)
	 {
	 //首先打印标题
	 StringFormat sf = new StringFormat();
	 sf.Alignment = StringAlignment.Center;
	 rect = new Rectangle(leftMargin, topMargin, e.MarginBounds.Width, e.MarginBounds.Height);
	 graphic.DrawString(dataHead, headFont, brush, rect, sf);
	 topMargin += 60;
	 currentLine = linesPerPage - (int)((e.MarginBounds.Height - 60) / lineHeight);//当前页的当前行;由于首页有标题
	 }
	 //计算平均宽度--由于打印倒置，有行数计算平均宽度
	 int width = (int)(e.MarginBounds.Width / rows);
	 // alinnment of data
	 StringFormat sfData = new StringFormat();
	 sfData.Alignment = StringAlignment.Center;
	 sfData.LineAlignment = StringAlignment.Center;
	 //下面开始画表格
	 Point ptS;
	 Point ptE;
	 int rightMargin = leftMargin + width * rows;
	 //先划封顶横线
	 ptS = new Point(leftMargin, topMargin);
	 ptE = new Point(rightMargin, topMargin);
	 graphic.DrawLine(Pens.Black, ptS, ptE);
	 //int countNum = 0; //当前行
	 yPosition = topMargin;
	 int maxHeight = 1;
	 while (currentRow < columns) //按列打印
	 {
	 if (currentLine < linesPerPage)//linesPerPage
	 {
	 xPosition = leftMargin;
	 maxHeight = 1;
	 int height = 0;
	 //绘制当前行
	 for (int j = 0; j < rows; j++)
	 {
	 int length = 0;
	 for (int k = 0; k < rows; k++)
	 {
	 int _length = datas[k, currentRow].Length * charWidth;
	 if (length < _length)
	 {
	 length = _length;
	 }
	
	 }
	 if (length > width)
	 {
	 int l = (int)(length / width) + 1;
	 if (l > maxHeight)
	 {
	 maxHeight = l;
	 }
	 }
	 line = datas[j, currentRow];
	 height = (int)(lineHeight * maxHeight + 1);
	 if (j < 1)
	 {
	 ptS = new Point(xPosition, yPosition);
	 ptE = new Point(xPosition, yPosition + height);
	 graphic.DrawLine(Pens.Black, ptS, ptE);
	 }
	 graphic.DrawString(line, dataFont, brush, new Rectangle(xPosition, yPosition, width, height), sfData);
	 xPosition += width;
	 ptS = new Point(xPosition, yPosition);
	 ptE = new Point(xPosition, yPosition + height);
	 graphic.DrawLine(Pens.Black, ptS, ptE);
	 }
	 //当前行
	 currentRow++;
	 currentLine += maxHeight;
	 yPosition += height;
	 ptS = new Point(leftMargin, yPosition);
	 ptE = new Point(xPosition, yPosition);
	 graphic.DrawLine(Pens.Black, ptS, ptE);
	 }
	 else
	 {
	 //分页处理
	 currentPage++;
	 currentLine = 0;
	 line = null;
	 break;
	 }
	
	 }//while
	
	
	 if (line == null)
	 {
	 e.HasMorePages = true;
	 }
	 else
	 {
	 e.HasMorePages = false;
	 currentPage = 0;
	 currentRow = 0;
	 currentLine = 0;
	 }
	
	 }//func
	 }
	}
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