c# ListView打印类
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<span style="font-size:18px;">ListView打印类/*无需导入com组件，无需绑定Datatable，将 listview 声明为此类的实例，再直接调用 doprint()方法就可以进行打印了，非常方便简单。下面是原代码： */using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Drawing .Printing ; namespace UI_Form { /* * 属性： *PrintHeaderString : 设置打印的标题; *IsAlwaysPrintHeader : 设置是否在每页都打印标题; *IsPreview : 设置是否进行预览; *LineSpace : 设置打印的行距 *HeaderFont : 设置标题的字体 *BodyFont : 设置正文的字体 *TailFont : 设置页尾的字体 以下为源代码： * ----------------------------------------------------------------------------------------- * 【文件名】： PrintListView.cs * 【说 明】： 支持 ListView 的所见即所得的打印的类 * 1、整个打印的部分分为页首、正文、页尾三个部分； * 2、正文部分打印 ListView 的 ColumnHeader 以及 ListView 的 Items，通过 PrintPageBody() 实现； * 3、页首、页尾的打印自由定制，默认的行为是页首打印标题，页尾打印页码和时间，需要改变页首和页尾的默认打印方式，可以对 PrintPageHeader() 和 PrintPageTail() 函数进行重写，并进行打印区域的重新计算； * 4、支持预览 * 5、支持打印设置，如：是否每页都打印标题，设置页首、正文、页尾的打印字体，等。 * * 【作 者】： sashow ( sashow @ 163.com ) * 【日 期】： 2005.05.10 * ----------------------------------------------------------------------------------------*/ /// <summary> /// ListView 的所见即所得的打印支持类。 /// </summary> public class PrintListView : ListView { /// <summary> /// 指示是否进行打印预览，默认值为 true /// </summary> private bool m_bIsPreview; /// <summary> /// 指示是否总是打印标题，默认值为 true /// </summary> private bool m_bIsAlwaysPrintHeader; /// <summary> /// 需要打印的页首字符串 /// </summary> private string m_sPrintHeaderString; /// <summary> /// 标题的字体 /// </summary> private Font m_oHeaderFont; /// <summary> /// 正文字体 /// </summary> private Font m_oBodyFont; /// <summary> /// 页尾字体 /// </summary> private Font m_oTailFont; /// <summary> /// 正文部分的 ColumnHeader 字体，该字体为正文字体的加粗形式 /// </summary> private Font m_oColumnHeaderFont; /// <summary> /// 打印文档 /// </summary> private PrintDocument m_oPrintDoc; /// <summary> /// 行间距 /// </summary> private int m_nLineSpace ; private int m_nPrintWidth; // 打印区域宽度 private int m_nPrintHeight; // 打印区域长度 private int m_nPageCount; // 打印页数 private int m_nCurPrintPage; // 当前正在打印的页码 private int m_nTotalPage; // 共有的页数 private int m_nFromPage; // 用户选择的打印起始页 private int m_nCurPrintItem; // 当前正在打印的元素 private Rectangle m_oHeaderRect; // 打印页首的区域 private Rectangle m_oBodyRect; // 打印正文的区域 private Rectangle m_oTailRect; // 打印页尾的区域 private Brush defaultBrush; private Pen defaultPen; /// <summary> /// 设置或获取是否进行打印预览 /// </summary> public bool IsPreview { get { return m_bIsPreview;} set { m_bIsPreview = value;} } /// <summary> /// 设置或获取是否总是打印标题 /// </summary> public bool IsAlwaysPrintHeader { get { return m_bIsAlwaysPrintHeader;} set { m_bIsAlwaysPrintHeader = value;} } /// <summary> /// 设置或获取打印的页首字符串 /// </summary> public string PrintHeaderString { get { return m_sPrintHeaderString ;} set { if (value != null ) m_sPrintHeaderString = value;} } /// <summary> /// 设置或获取页首字体 /// </summary> public Font HeaderFont { set { m_oHeaderFont = value;} get { return m_oHeaderFont;} } /// <summary> /// 设置或获取正文字体 /// 如果对正文字体的 Bold 属性设置为 true ，则发生 Exception 类型的异常 /// </summary> public Font BodyFont { set{ if ( value == null ) return ; if (value.Bold == true ){ //throw new Exception ("正文字体不能进行 [加粗] 设置."); MessageBox.Show("正文字体不能进行 [加粗] 设置.","警告",MessageBoxButtons.OK,MessageBoxIcon.Warning); return; }else{ m_oBodyFont = value; } } get { return m_oBodyFont;} } /// <summary> /// 设置或获取页尾字体 /// </summary> public Font TailFont { set { m_oTailFont = value;} get { return m_oTailFont;} } /// <summary> /// 设置或获取行间距 /// </summary> public int LineSpace{ get { return m_nLineSpace;} set { if ( value < 0 ){ m_nLineSpace = 0; } m_nLineSpace = value; } } /// <summary> /// 构造函数，设置打印信息的一些默认值 /// </summary> public PrintListView() { m_bIsPreview = true; m_bIsAlwaysPrintHeader = true; IsAlwaysPrintHeader=true; m_sPrintHeaderString = ""; m_oHeaderFont = null; m_oTailFont = null; m_oBodyFont = null; m_oColumnHeaderFont = null; m_oPrintDoc = null; m_nPrintWidth = 0; m_nPrintHeight = 0; m_nPageCount = 0; m_nCurPrintPage = 1; m_nFromPage = 1; m_nLineSpace = 0; m_nCurPrintItem = 0; defaultBrush = Brushes.Black ; defaultPen = new Pen ( defaultBrush,1 ); } /// <summary> /// 初始化打印文档的属性 /// </summary> /// <returns></returns> private void InitPrintDocument () { m_oPrintDoc = new PrintDocument (); m_oPrintDoc.DocumentName = m_sPrintHeaderString; if (m_oPrintDoc.PrinterSettings.PrinterName == "<no default printer>"){ //throw new Exception ("未找到默认打印机."); MessageBox.Show("未找到默认打印机.","提示",MessageBoxButtons.OK,MessageBoxIcon.Information); return; } else { m_oPrintDoc.PrintPage +=new PrintPageEventHandler(PrintPage); m_oPrintDoc.BeginPrint +=new PrintEventHandler(BeginPrint); m_oPrintDoc.EndPrint +=new PrintEventHandler(EndPrint); } /* 设置打印字体 */ if ( m_oHeaderFont == null ){ m_oHeaderFont = new Font ("宋体",24,FontStyle.Bold,GraphicsUnit.World ); } if ( m_oBodyFont == null ) { m_oBodyFont = new Font ("宋体",20,FontStyle.Regular ,GraphicsUnit.World ); } m_oColumnHeaderFont = new Font (m_oBodyFont,FontStyle.Bold ); if ( m_oTailFont == null ) { m_oTailFont = new Font ("宋体",14,FontStyle.Regular ,GraphicsUnit.World ); } } /// <summary> /// 初始化打印纸张设置 /// </summary> private bool InitPrintPage (out Margins margins) { margins = null; /* 获取当前 listview 的分辨率 */ Graphics g = this.CreateGraphics (); float x = g.DpiX ; g.Dispose (); /* 显示纸张设置对话框 */ PageSetupDialog ps = new PageSetupDialog (); ps.Document = m_oPrintDoc; if ( ps.ShowDialog () == DialogResult.Cancel ) { return false; } else { // 根据用户设置的纸张信息计算打印区域，计算结果的单位为 1/100 Inch m_nPrintWidth = ps.PageSettings .Bounds .Width - ps.PageSettings .Margins .Left - ps.PageSettings .Margins .Right ; m_nPrintHeight = ps.PageSettings .Bounds .Height - ps.PageSettings .Margins .Top - ps.PageSettings .Margins .Bottom ; margins = ps.PageSettings .Margins ; } if ( m_nPrintWidth <= 0 || m_nPrintHeight <= 0 ) { //throw new Exception ("纸张设置错误."); MessageBox.Show("纸张设置错误.","提示",MessageBoxButtons.OK,MessageBoxIcon.Warning); return false; } /* 将当前 listview 的各column的长度和转换为英寸，判断打印范围是否越界 */ int listViewWidth = 0; for ( int i = 0 ; i < this.Columns.Count ; i ++ ) { listViewWidth += this.Columns [i].Width ; } if ( Convert.ToInt32 ( listViewWidth / x * 100 ) > m_nPrintWidth ) { //throw new Exception ("打印内容超出纸张范围 ！\r\n请尝试调整纸张或纸张边距；\r\n或缩小表格各列的宽度。"); MessageBox.Show("打印内容超出纸张范围 ！\r\n请尝试调整纸张或纸张边距；\r\n或缩小表格各列的宽度。","提示",MessageBoxButtons.OK,MessageBoxIcon.Information); return false; } m_oPrintDoc.DefaultPageSettings = ps.PageSettings ; return true; } /// <summary> /// 初始化打印页码设置 /// </summary> private bool InitPrintPageNumber(Margins margins) { /* 计算页数 */ int headerFontHeight = m_oHeaderFont.Height ; int columnHeaderFontHeight = m_oColumnHeaderFont.Height ; int bodyFontHeight = m_oBodyFont.Height ; int tailFontHeight = m_oTailFont.Height ; // 页首区域打印 页首字符串 以及一条横线 m_oHeaderRect = new Rectangle ( margins.Left ,margins.Top ,m_nPrintWidth,headerFontHeight + m_nLineSpace + 3); int tailHeight = tailFontHeight + m_nLineSpace + 3; // 页尾区域打印 一条横线，页码和打印时间（在同一行） m_oTailRect = new Rectangle ( margins.Left ,margins.Top + m_nPrintHeight - tailHeight,m_nPrintWidth,tailHeight); //正文区域为去掉页首和页尾区域的部分 m_oBodyRect = new Rectangle ( margins.Left ,m_oHeaderRect.Bottom + 2,m_nPrintWidth,m_oTailRect.Top - m_oHeaderRect.Bottom - 4 ); /* 计算第一页能打印的元素个数 */ int printItemPerPage = 0; int firstPageItem = Convert.ToInt32 ( (m_oBodyRect.Height - columnHeaderFontHeight - m_nLineSpace) /(bodyFontHeight + m_nLineSpace )); if ( firstPageItem >= this.Items .Count ){ // 需打印的元素只有一页 m_nPageCount = 1; } else { // 需要打印的元素有多页 printItemPerPage = firstPageItem; int leftItems = this.Items .Count - firstPageItem; if ( m_bIsAlwaysPrintHeader == false ){ printItemPerPage =( m_oBodyRect.Height + m_oHeaderRect.Height + 2 - columnHeaderFontHeight - m_nLineSpace) / ( bodyFontHeight + m_nLineSpace); } if ( leftItems % printItemPerPage == 0 ){ m_nPageCount = leftItems / printItemPerPage + 1; } else { m_nPageCount = leftItems / printItemPerPage + 2; } } m_nTotalPage = m_nPageCount; /* 显示打印对话框 */ PrintDialog pd = new PrintDialog (); pd.Document = m_oPrintDoc; pd.PrinterSettings .MinimumPage = 1; pd.PrinterSettings .MaximumPage = m_nPageCount; pd.PrinterSettings .FromPage = 1; pd.PrinterSettings .ToPage = m_nPageCount; pd.AllowPrintToFile = false; // 不设置打印到文件 if ( m_nPageCount > 1 ){ pd.AllowSelection = true; } else { pd.AllowSelection = false ; } pd.AllowSomePages = true; if ( pd.ShowDialog ()== DialogResult.OK ){ m_nPageCount = pd.PrinterSettings .ToPage - pd.PrinterSettings .FromPage + 1; if ( pd.PrinterSettings .FromPage > 1 ) { m_nCurPrintItem = firstPageItem + ( pd.PrinterSettings .FromPage -2 )* printItemPerPage ; } else { m_nCurPrintItem = 0 ; } m_nFromPage = pd.PrinterSettings .FromPage ; m_oPrintDoc.DocumentName = m_nPageCount.ToString (); m_oPrintDoc.PrinterSettings = pd.PrinterSettings ; return true; }else{ return false; } } /// <summary> /// 启动 ListView 的打印工作 /// </summary> public virtual void DoPrint ( ) { if ( this.Items.Count <= 0 ) { //throw new Exception ("没有需要打印的元素."); MessageBox.Show("没有需要打印的元素.","提示",MessageBoxButtons.OK,MessageBoxIcon.Information); return; } InitPrintDocument (); Margins margins = null; if (InitPrintPage( out margins ) == false ) return; if ( InitPrintPageNumber( margins )== false ) return; if ( m_bIsPreview == false ) { m_oPrintDoc.Print (); } else { PrintPreviewDialog pd = new PrintPreviewDialog(); pd.Document = m_oPrintDoc; pd.PrintPreviewControl.Zoom = 1.0; pd.WindowState = FormWindowState.Maximized; pd.ShowInTaskbar = true; pd.ShowDialog (); } } /// <summary> /// 打印页首 /// </summary> /// <param name="g"></param> protected virtual void PrintPageHeader(Graphics g){ RectangleF textRect = new RectangleF (m_oHeaderRect.X ,m_oHeaderRect.Y ,m_oHeaderRect.Width ,m_oHeaderRect.Height - 3 ); CenterText(g,m_sPrintHeaderString,m_oHeaderFont,defaultBrush,textRect ); g.DrawLine (defaultPen,m_oHeaderRect.X ,m_oHeaderRect.Bottom -2 ,m_oHeaderRect.Right ,m_oHeaderRect.Bottom - 2); } /// <summary> /// 打印正文 /// </summary> /// <param name="g"></param> protected virtual void PrintPageBody( Graphics g ) { Rectangle textRect = m_oBodyRect; if ( m_bIsAlwaysPrintHeader == false && m_nCurPrintPage != 1 ) { textRect = new Rectangle ( m_oHeaderRect.X ,m_oHeaderRect.Y ,m_oHeaderRect.Width ,m_oHeaderRect.Height + 2 + m_oBodyRect.Height ); } /* 打印标题,也就是 columnHeader */ int columnHeaderFontHeight = m_oColumnHeaderFont.Height ; int bodyFontHeight = m_oBodyFont.Height ; Rectangle columnHeaderRect = new Rectangle (textRect.X ,textRect.Y ,textRect.Width ,columnHeaderFontHeight + m_nLineSpace ); DrawColumnHeader(g,m_oColumnHeaderFont,defaultBrush,columnHeaderRect); /* 打印元素 */ int itemHeight = bodyFontHeight + m_nLineSpace; Rectangle itemRect; int yPos = columnHeaderRect.Bottom ; int printItemPerPage = ( textRect.Height - columnHeaderRect.Height ) / ( bodyFontHeight + m_nLineSpace); for ( int i = 0 ; (i < printItemPerPage) && (m_nCurPrintItem < this.Items .Count ); i ++ ) { itemRect = new Rectangle (textRect.X ,yPos,textRect.Width ,itemHeight); DrawItem(g,m_oBodyFont,defaultBrush,itemRect ); m_nCurPrintItem ++; yPos += itemHeight; } } /// <summary> /// 打印页尾 /// </summary> /// <param name="g"></param> protected virtual void PrintPageTail ( Graphics g ){ g.DrawLine (defaultPen,m_oTailRect.X,m_oTailRect.Top +1,m_oTailRect.Right ,m_oTailRect.Top +1); RectangleF textRect = new RectangleF (m_oTailRect.X ,m_oTailRect.Y+ 3 ,m_oTailRect.Width ,m_oTailRect.Height -3); string text = "第 "+ m_nFromPage.ToString ()+" 页 共 "+ m_nTotalPage.ToString () + " 页"; m_nFromPage ++ ; CenterText(g,text,m_oTailFont,defaultBrush,textRect ); string time = "打印时间："+DateTime.Now.ToLongDateString ()+" "; RightText(g,time,m_oTailFont,defaultBrush,textRect); } /// <summary> /// 打印一页 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void PrintPage(object sender, PrintPageEventArgs e) { e.Graphics.PageUnit = GraphicsUnit.Inch; e.Graphics.PageScale = .01f; if ( m_bIsAlwaysPrintHeader == true ) { PrintPageHeader ( e.Graphics ); } else { if ( m_nCurPrintPage == 1 ) { PrintPageHeader ( e.Graphics ); } } PrintPageBody( e.Graphics ); PrintPageTail ( e.Graphics ); if ( m_nCurPrintPage == m_nPageCount ){ e.HasMorePages = false; } else { e.HasMorePages = true; } m_nCurPrintPage ++; } /// <summary> /// 打印前的初始化设置 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void BeginPrint(object sender, PrintEventArgs e){ m_nCurPrintPage = 1; } /// <summary> /// 打印结束后的资源释放 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void EndPrint(object sender, PrintEventArgs e) { } /// <summary> /// 居中显示文本信息 /// </summary> private void CenterText(Graphics g, string t, Font f, Brush b, RectangleF rect) { StringFormat sf = new StringFormat(); sf.Alignment = StringAlignment.Center; sf.LineAlignment = StringAlignment.Center; g.DrawString(t, f, b, rect, sf); } /// <summary> /// 居右显示文本信息 /// </summary> private void RightText (Graphics g, string t, Font f, Brush b, RectangleF rect){ StringFormat sf = new StringFormat(); sf.Alignment = StringAlignment.Far ; sf.LineAlignment = StringAlignment.Center; g.DrawString(t, f, b, rect, sf); } /// <summary> /// 居左显示文本信息 /// </summary> private void LeftText (Graphics g, string t, Font f, Brush b, RectangleF rect){ StringFormat sf = new StringFormat(); sf.Alignment = StringAlignment.Near ; sf.LineAlignment = StringAlignment.Center; g.DrawString(t, f, b, rect, sf); } /// <summary> /// 打印 listview 的 columnheader /// </summary> private void DrawColumnHeader ( Graphics g,Font f,Brush b,Rectangle rect ){ StringFormat sf = new StringFormat (); sf.Alignment = StringAlignment.Center ; sf.LineAlignment = StringAlignment.Center ; Rectangle itemRect; Point location = new Point (rect.Location.X ,rect.Location .Y ); Size itemSize ; for ( int i = 0 ;i < this.Columns .Count ;i ++ ){ itemSize = new Size (this.Columns [i].Width ,rect.Height ); itemRect = new Rectangle ( location,itemSize ); g.DrawRectangle (defaultPen,itemRect); g.DrawString (this.Columns [i].Text ,f,b,itemRect,sf); location.X += this.Columns [i].Width ; } } /// <summary> /// 打印 listview 的 item /// </summary> private void DrawItem ( Graphics g,Font f,Brush b,Rectangle rect ) { StringFormat sf = new StringFormat (); sf.Alignment = StringAlignment.Near ; sf.LineAlignment = StringAlignment.Center ; Rectangle itemRect; Point location = new Point (rect.Location.X ,rect.Location .Y ); Size itemSize ; for ( int i = 0 ;i < this.Columns .Count ;i ++ ) { itemSize = new Size (this.Columns [i].Width ,rect.Height ); itemRect = new Rectangle ( location,itemSize ); g.DrawRectangle (defaultPen,itemRect); g.DrawString (this.Items [m_nCurPrintItem].SubItems [i].Text ,f,b,itemRect,sf); location.X += this.Columns [i].Width ; } } } </span> 1 0
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