Csharp/CSharp Tutorial/GUI Windows Forms/PrintDialog

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Версия от 15:15, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Display PrintDialog

<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; using System.IO; using System.Drawing.Printing; public class PrintDialogDemo : System.Windows.Forms.Form {

 private System.Windows.Forms.TextBox txtFile;
 private System.Windows.Forms.Button btnOpenFile;
 private System.Windows.Forms.Button btnSaveFile;
 private System.ruponentModel.Container components = null;
 private System.Windows.Forms.Button btnPageSetup;
 private System.Windows.Forms.Button btnPrint;
 private System.Windows.Forms.Button btnPrintPreview;  
 
 private String strFileName;
 private Font currentFont = null;
 private PrintDocument printDocument = new PrintDocument();
 private StringReader stringReader;
 private OpenFileDialog openFileDialog = new OpenFileDialog();
 public PrintDialogDemo()
 {
   InitializeComponent();
   
   printDocument.PrintPage += new PrintPageEventHandler(pdPrintPage);
   printDocument.BeginPrint += new PrintEventHandler(pdBeginPrint);
   printDocument.EndPrint += new PrintEventHandler(pdEndPrint);
       currentFont= Font;
 }
 private void InitializeComponent()
 {
   this.txtFile = new System.Windows.Forms.TextBox();
   this.btnOpenFile = new System.Windows.Forms.Button();
   this.btnSaveFile = new System.Windows.Forms.Button();
   this.btnPageSetup = new System.Windows.Forms.Button();
   this.btnPrint = new System.Windows.Forms.Button();
   this.btnPrintPreview = new System.Windows.Forms.Button();
   this.SuspendLayout();
   // 
   // txtFile
   // 
   this.txtFile.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
     | System.Windows.Forms.AnchorStyles.Left) 
     | System.Windows.Forms.AnchorStyles.Right);
   this.txtFile.Location = new System.Drawing.Point(40, 24);
   this.txtFile.Multiline = true;
   this.txtFile.Name = "txtFile";
   this.txtFile.Size = new System.Drawing.Size(500, 150);
   this.txtFile.TabIndex = 0;
   this.txtFile.Text = "";
   // 
   // btnOpenFile
   // 
   this.btnOpenFile.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
   this.btnOpenFile.Location = new System.Drawing.Point(48, 256);
   this.btnOpenFile.Name = "btnOpenFile";
   this.btnOpenFile.TabIndex = 1;
   this.btnOpenFile.Text = "Open File";
   this.btnOpenFile.Click += new System.EventHandler(this.btnOpenFile_Click);
   // 
   // btnSaveFile
   // 
   this.btnSaveFile.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
   this.btnSaveFile.Location = new System.Drawing.Point(144, 256);
   this.btnSaveFile.Name = "btnSaveFile";
   this.btnSaveFile.TabIndex = 2;
   this.btnSaveFile.Text = "Save File";
   this.btnSaveFile.Click += new System.EventHandler(this.btnSaveFile_Click);
   // 
   // btnPageSetup
   // 
   this.btnPageSetup.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
   this.btnPageSetup.Location = new System.Drawing.Point(240, 344);
   this.btnPageSetup.Name = "btnPageSetup";
   this.btnPageSetup.TabIndex = 8;
   this.btnPageSetup.Text = "Page Setup";
   this.btnPageSetup.Click += new System.EventHandler(this.btnPageSetup_Click);
   // 
   // btnPrint
   // 
   this.btnPrint.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
   this.btnPrint.Location = new System.Drawing.Point(48, 344);
   this.btnPrint.Name = "btnPrint";
   this.btnPrint.TabIndex = 6;
   this.btnPrint.Text = "Print";
   this.btnPrint.Click += new System.EventHandler(this.btnPrint_Click);
   // 
   // btnPrintPreview
   // 
   this.btnPrintPreview.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
   this.btnPrintPreview.Location = new System.Drawing.Point(144, 344);
   this.btnPrintPreview.Name = "btnPrintPreview";
   this.btnPrintPreview.Size = new System.Drawing.Size(80, 23);
   this.btnPrintPreview.TabIndex = 7;
   this.btnPrintPreview.Text = "Print Preview";
   this.btnPrintPreview.Click += new System.EventHandler(this.btnPrintPreview_Click);
   // 
   // PrintDialogDemo
   // 
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(592, 398);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                            this.btnPrintPreview,
                                            this.btnPrint,
                                            this.btnPageSetup,
                                            this.btnSaveFile,
                                            this.btnOpenFile,
                                            this.txtFile});
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new PrintDialogDemo());
 }
 private void btnOpenFile_Click(object sender, System.EventArgs e)
 {
   openFileDialog.InitialDirectory = @"c:\";
   openFileDialog.Filter = "Text files (*.txt)|*.txt|" +
           "All files (*.*)|*.*";
   openFileDialog.FilterIndex = 1;              //  1 based index
   
   if (openFileDialog.ShowDialog() == DialogResult.OK)
   {
     StreamReader reader = new StreamReader(openFileDialog.FileName);
     try
     {
       strFileName = openFileDialog.FileName;
       txtFile.Text = reader.ReadToEnd();
     }
     catch (Exception ex)
     {
       MessageBox.Show(ex.Message);
       return;
     }
     finally
     {
       reader.Close();
     }
   }
 }
 private void btnSaveFile_Click(object sender, System.EventArgs e)
 {
   SaveFileDialog sfd = new SaveFileDialog();
   sfd.InitialDirectory = @"c:\";
   sfd.Filter = "Text files (*.txt)|*.txt|" +
           "All files (*.*)|*.*";
   sfd.FilterIndex = 1;              //  1 based index
   if (strFileName != null)
     sfd.FileName = strFileName;
   else
     sfd.FileName = "*.txt";
   
   if (sfd.ShowDialog() == DialogResult.OK)
   {
     StreamWriter writer = new StreamWriter(strFileName,false);
     try
     {
       strFileName = sfd.FileName;
       writer.Write(txtFile.Text);
     }
     catch(Exception ex)
     {
       MessageBox.Show(ex.Message);
       return;
     }
     finally
     {
       writer.Close();
     }
   }
 }
 private void btnPageSetup_Click(object sender, System.EventArgs e)
 {
   PageSetupDialog psd = new PageSetupDialog();
   psd.Document = printDocument;
   psd.ShowDialog();
 }
 private void btnPrint_Click(object sender, System.EventArgs e)
 {
   PrintDialog pdlg = new PrintDialog();
   pdlg.Document = printDocument;
   
   if (pdlg.ShowDialog() == DialogResult.OK)
   {
     try
     {
       printDocument.Print();
     }
     catch(Exception ex)
     {
       MessageBox.Show("Print error: " + ex.Message);
     }
   }
 }
 private void btnPrintPreview_Click(object sender, System.EventArgs e)
 {
   PrintDialog ppdlg = new PrintDialog();
   ppdlg.Document = printDocument;
   ppdlg.ShowDialog();
 }
 private void pdPrintPage(object sender, PrintPageEventArgs e)
 {
   float linesPerPage = 0;
   float verticalOffset = 0;
   float leftMargin = e.MarginBounds.Left;
   float topMargin = e.MarginBounds.Top;
   int linesPrinted = 0;
   String strLine = null;
   linesPerPage = e.MarginBounds.Height / currentFont.GetHeight(e.Graphics);
   
   while (linesPrinted < linesPerPage &&
       ((strLine = stringReader.ReadLine())!= null ))
   {
     verticalOffset = topMargin + (linesPrinted * currentFont.GetHeight(e.Graphics));
     e.Graphics.DrawString(strLine, currentFont, Brushes.Black, leftMargin, verticalOffset);
     linesPrinted++;
   }
   
   if (strLine != null)
     e.HasMorePages = true;
   else
     e.HasMorePages = false;
     
 }
 private void pdBeginPrint(object sender, PrintEventArgs e)
 {
   stringReader = new StringReader(txtFile.Text);
   currentFont = txtFile.Font;
 }
 private void pdEndPrint(object sender, PrintEventArgs e)
 {
   stringReader.Close();
   MessageBox.Show("Done printing.");
 }

}</source>

Prompt PrintDialog

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; using System.Drawing.Printing; public class PrintDialogPrint : Form {

   public PrintDialogPrint()
   {
       this.cmdPrint = new System.Windows.Forms.Button();
       this.SuspendLayout();
       // 
       this.cmdPrint.Location = new System.Drawing.Point(109, 122);
       this.cmdPrint.Size = new System.Drawing.Size(75, 23);
       this.cmdPrint.Text = "Print";
       this.cmdPrint.UseVisualStyleBackColor = true;
       this.cmdPrint.Click += new System.EventHandler(this.cmdPrint_Click);
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(272, 260);
       this.Controls.Add(this.cmdPrint);
       this.Text = "Simple Print";
       this.ResumeLayout(false);
   }
   private void cmdPrint_Click(object sender, EventArgs e)
   {
       PrintDocument doc = new PrintDocument();
       doc.PrintPage += this.Doc_PrintPage;
       PrintDialog dlgSettings = new PrintDialog();
       dlgSettings.Document = doc;
       if (dlgSettings.ShowDialog() == DialogResult.OK)
       {
           doc.Print();
       }
   }
   private void Doc_PrintPage(object sender, PrintPageEventArgs e)
   {
       Font font = new Font("Arial", 30);
       
       float x = e.MarginBounds.Left;
       float y = e.MarginBounds.Top;
       float lineHeight = font.GetHeight(e.Graphics);
       for (int i = 0; i < 5; i++)
       {
           e.Graphics.DrawString("This is line " + i.ToString(),font, Brushes.Black, x, y);
           y += lineHeight;
       }
       y += lineHeight;
       e.Graphics.DrawImage(Image.FromFile("c:\\YourFile.bmp"), x, y);
       
   }
   [STAThread]
   static void Main()
   {
       Application.EnableVisualStyles();
       Application.SetCompatibleTextRenderingDefault(false);
       Application.Run(new PrintDialogPrint());
   }
   private System.Windows.Forms.Button cmdPrint;
   

}</source>