如何利用C#打印文件
这篇文章主要介绍“如何利用C#打印文件”，在日常操作中，相信很多人在如何利用C#打印文件问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”如何利用C#打印文件”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
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C#打印文件的过程中，需要对所打印文件进行预览，对版式也有所要求。C#打印文件期间，也有可能出现错误推出，这些都是我们开发人员需要考虑的问题。
以下是C#打印文件的代码。
using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.IO; using System.Text; using System.Drawing.Printing; namespace PrintDemo ...{ /**//// /// Form1 的摘要说明。 /// public class DemoForm : System.Windows.Forms.Form ...{ private System.Windows.Forms.TextBox txtDoc; private System.Windows.Forms.MainMenu mnuMain; private System.Windows.Forms.MenuItem mnuFile; private System.Windows.Forms.MenuItem mnuFileOpen; private System.Windows.Forms.MenuItem mnuFilePrint; private System.Windows.Forms.MenuItem mnuFormat; private System.Windows.Forms.MenuItem mnuFormatFont; private System.Windows.Forms.OpenFileDialog dlgOpen; private System.Windows.Forms.FontDialog dlgFont; private System.Drawing.Printing.PrintDocument pdoc; /**//// /// 必需的设计器变量。 /// private System.ComponentModel.Container components = null; private System.Windows.Forms.MenuItem mnuFilePrintPreview; private System.Windows.Forms.MenuItem mnuFilePageSetup; private System.Windows.Forms.PrintPreviewDialog ppd; private System.Windows.Forms.PageSetupDialog dlgPageSetup; private System.Windows.Forms.PrintDialog dlgPrinterSetup; private int totalLines; public DemoForm() ...{ // // Windows 窗体设计器支持所必需的 // InitializeComponent(); // // TODO: 在 InitializeComponent 调用后添加任何构造函数代码 // } /**//// /// 清理所有正在使用的资源。 /// protected override void Dispose( bool disposing ) ...{ if( disposing ) ...{ if (components != null) ...{ components.Dispose(); } } base.Dispose( disposing ); } Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码 /**//// /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// private void InitializeComponent() ...{ System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(DemoForm)); this.txtDoc = new System.Windows.Forms.TextBox(); this.mnuMain = new System.Windows.Forms.MainMenu(); this.mnuFile = new System.Windows.Forms.MenuItem(); this.mnuFileOpen = new System.Windows.Forms.MenuItem(); this.mnuFilePrint = new System.Windows.Forms.MenuItem(); this.mnuFormat = new System.Windows.Forms.MenuItem(); this.mnuFormatFont = new System.Windows.Forms.MenuItem(); this.dlgOpen = new System.Windows.Forms.OpenFileDialog(); this.dlgFont = new System.Windows.Forms.FontDialog(); this.pdoc = new System.Drawing.Printing.PrintDocument(); this.mnuFilePrintPreview = new System.Windows.Forms.MenuItem(); this.mnuFilePageSetup = new System.Windows.Forms.MenuItem(); this.ppd = new System.Windows.Forms.PrintPreviewDialog(); this.dlgPageSetup = new System.Windows.Forms.PageSetupDialog(); this.dlgPrinterSetup = new System.Windows.Forms.PrintDialog(); this.SuspendLayout(); // // txtDoc // this.txtDoc.Dock = System.Windows.Forms.DockStyle.Fill; this.txtDoc.Location = new System.Drawing.Point(0, 0); this.txtDoc.Multiline = true; this.txtDoc.Name = "txtDoc"; this.txtDoc.ScrollBars = System.Windows.Forms.ScrollBars.Both; this.txtDoc.Size = new System.Drawing.Size(560, 309); this.txtDoc.TabIndex = 0; this.txtDoc.Text = ""; this.txtDoc.WordWrap = false; this.txtDoc.TextChanged += new System.EventHandler(this.txtDoc_TextChanged); // // mnuMain // this.mnuMain.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] ...{ this.mnuFile, this.mnuFormat}); // // mnuFile // this.mnuFile.Index = 0; this.mnuFile.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] ...{ this.mnuFileOpen, this.mnuFilePageSetup, this.mnuFilePrintPreview, this.mnuFilePrint}); this.mnuFile.Text = "文件(&F)"; // // mnuFileOpen // this.mnuFileOpen.Index = 0; this.mnuFileOpen.Text = "打开(&O)..."; this.mnuFileOpen.Click += new System.EventHandler(this.mnuFileOpen_Click); // // mnuFilePrint // this.mnuFilePrint.Index = 3; this.mnuFilePrint.Text = "打印(&P)..."; this.mnuFilePrint.Click += new System.EventHandler(this.mnuFilePrint_Click); // // mnuFormat // this.mnuFormat.Index = 1; this.mnuFormat.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] ...{ this.mnuFormatFont}); this.mnuFormat.Text = "格式(&F)"; // // mnuFormatFont // this.mnuFormatFont.Index = 0; this.mnuFormatFont.Text = "字体(&O)"; this.mnuFormatFont.Click += new System.EventHandler(this.mnuFormatFont_Click); // // dlgOpen // this.dlgOpen.Filter = "文本文件|*.txt|所有文件|*.*"; // // pdoc // this.pdoc.DocumentName = "abc"; this.pdoc.BeginPrint += new System.Drawing.Printing.PrintEventHandler(this.pdoc_BeginPrint); this.pdoc.EndPrint += new System.Drawing.Printing.PrintEventHandler(this.pdoc_EndPrint); this.pdoc.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.pdoc_PrintPage); // // mnuFilePrintPreview // this.mnuFilePrintPreview.Index = 2; this.mnuFilePrintPreview.Text = "打印预览..."; this.mnuFilePrintPreview.Click += new System.EventHandler(this.mnuFilePrintPreview_Click); // // mnuFilePageSetup // this.mnuFilePageSetup.Index = 1; this.mnuFilePageSetup.Text = "页面设置..."; this.mnuFilePageSetup.Click += new System.EventHandler(this.mnuFilePageSetup_Click); // // ppd // this.ppd.AutoScrollMargin = new System.Drawing.Size(0, 0); this.ppd.AutoScrollMinSize = new System.Drawing.Size(0, 0); this.ppd.ClientSize = new System.Drawing.Size(400, 300); this.ppd.Document = this.pdoc; this.ppd.Enabled = true; this.ppd.Icon = ((System.Drawing.Icon)(resources.GetObject("ppd.Icon"))); this.ppd.Location = new System.Drawing.Point(317, 17); this.ppd.MinimumSize = new System.Drawing.Size(375, 250); this.ppd.Name = "ppd"; this.ppd.TransparencyKey = System.Drawing.Color.Empty; this.ppd.Visible = false; // // dlgPageSetup // this.dlgPageSetup.Document = this.pdoc; // // dlgPrinterSetup // this.dlgPrinterSetup.Document = this.pdoc; // // DemoForm // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(560, 309); this.Controls.Add(this.txtDoc); this.Menu = this.mnuMain; this.Name = "DemoForm"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "打印"; this.ResumeLayout(false); } #endregion /**//// /// 应用程序的主入口点。 /// [STAThread] static void Main() ...{ Application.Run(new DemoForm()); } private void mnuFileOpen_Click(object sender, System.EventArgs e) ...{ if (dlgOpen.ShowDialog()==DialogResult.OK) ...{ StreamReader sr=null; try ...{ sr=new StreamReader(dlgOpen.FileName,Encoding.Default,true); txtDoc.Text=sr.ReadToEnd(); } catch ...{ MessageBox.Show("打开文件失败！","错误",MessageBoxButtons.OK,MessageBoxIcon.Error); } finally ...{ if (sr!=null) sr.Close(); } } } private void mnuFormatFont_Click(object sender, System.EventArgs e) ...{ dlgFont.Font=txtDoc.Font; if (dlgFont.ShowDialog()==DialogResult.OK) ...{ txtDoc.Font=dlgFont.Font; } } private void pdoc_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e) ...{ //MessageBox.Show("开始打印啦"); } private void pdoc_EndPrint(object sender, System.Drawing.Printing.PrintEventArgs e) ...{ //MessageBox.Show("打印结束"); } private void pdoc_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) ...{ Graphics g=e.Graphics; float lineHeight=txtDoc.Font.GetHeight(g); int linesPerPage=(int)(e.MarginBounds.Height/lineHeight); int count=0; //本页已打印行数 while (count到此，关于“如何利用C#打印文件”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！
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