一段简单的打印代码(c#)

  

 1 //数据流   
 2 System.IO.StringReader sr;
 3       //要打印的字符串
 4         private void redstr()
 5         {
 6             StringBuilder ojbbulider = new StringBuilder();
 7             ojbbulider.Append("\n");
 8             ojbbulider.Append ("测试1");
 9             ojbbulider.Append("测试2");
10             ojbbulider.Append("------------------------------");
11             ojbbulider.Append("测试3");
12             ojbbulider.Append("\n");
13             sr = new System.IO.StringReader(ojbbulider.ToString());
14         }
15         //打印方法
16         private void button1_Click(object sender, EventArgs e)
17         {
18             try
19             {
20                 if (printDialog1.ShowDialog() == DialogResult.OK)
21                 {
22                     printDocument1.Print();
23                 }
24             }
25             catch (Exception ex)
26             {
27                 MessageBox.Show("打印时出错" + ex.Message.ToString().Trim());
28             }
29         }
30 
31         //打印预览
32         private void button2_Click(object sender, EventArgs e)
33         {
34             try
35             {
36                
37                 printPreviewDialog1.ShowDialog();
38             }
39             catch (Exception ex)
40             {
41                 MessageBox.Show("预览时出错" + ex.Message.ToString().Trim());
42             }
43         }
44 
45         //打印设置
46         private void button3_Click(object sender, EventArgs e)
47         {
48             try
49             {
50                 pageSetupDialog1.ShowDialog();
51             }
52             catch (Exception ex)
53             {
54                 MessageBox.Show("设置时出错" + ex.Message.ToString().Trim());
55             }
56         }
57         
58         private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
59         {
60             Graphics objgraphics = e.Graphics;
61             e.Graphics.DrawString("测试", new Font(new FontFamily("宋体"), 10F), Brushes.Black, 10, 2);
62             redstr();
63             Font ziti = new Font(new FontFamily("宋体"), 10F);
64             //行高
65             float h = ziti.GetHeight(objgraphics);
66             //每一面的行数
67             float hangshu = (int)(e.MarginBounds.Height/h);
68             float left = e.MarginBounds.Left;
69             float top = e.MarginBounds.Top;
70 
71             string str = "";
72             for (int i = 0; i < hangshu; i++)
73             {
74                 str = sr.ReadLine();
75                 if (str == null)
76                 {
77                     //没有下一页
78                     e.HasMorePages = false;
79                     return;
80                 }
81                 float x = left;
82                 float y = top + h*i;
83                 objgraphics.DrawString(str, ziti, new SolidBrush(Color.Black), x, y,new StringFormat());
84             }
85             //有下一页
86             e.HasMorePages = true;
87         }
88     }