WinForm将html内容转化成图片

 1 using System;  
 2 using System.Collections.Generic;  
 3 using System.ComponentModel;  
 4 using System.Data;  
 5 using System.Drawing;  
 6 using System.Linq;  
 7 using System.Text;  
 8 using System.Windows.Forms;  
 9   
10 namespace TCP  
11 {  
12     public partial class Form1 : Form  
13     {  
14         public Form1()  
15         {  
16             InitializeComponent();  
17         }  
18         WebBrowser webBrowser = null;  
19         public void ConvertToImg()  
20         {  
21             //string html = "<div><table border = \"1\" cellspacing = \"0\" cellpadding = \"3\" style = \"text-align:center;\"><tr><th style = \"width:60px;\">字段1</th><th style = \"width:60px;\">字段2</th><th style = \"width:60px;\">字段3</th></tr><tr style = \"color:green;\"><td>小明</td><td>22</td><td>185</td></tr><tr style = \"color:red;\"><td>小青</td><td>21</td><td>170</td></tr></table></div>";  
22   
23             webBrowser = new WebBrowser();  
24   
25             //是否显式滚动条  
26             webBrowser.ScrollBarsEnabled = false;  
27   
28             //加载 html  
29             webBrowser.Navigate("http://www.baidu.com");  
30   
31             //页面加载完成执行事件  
32             webBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser_DocumentCompleted);  
33         }  
34   
35         private void webBrowser_DocumentCompleted(object sender, EventArgs e)//这个就是当网页载入完毕后要进行的操作  
36         {  
37             //获取解析后HTML的大小  
38             System.Drawing.Rectangle rectangle = webBrowser.Document.Body.ScrollRectangle;  
39             int width = rectangle.Width;  
40             int height = rectangle.Height;  
41   
42             //设置解析后HTML的可视区域  
43             webBrowser.Width = width;  
44             webBrowser.Height = height;  
45   
46             Bitmap bitmap = new System.Drawing.Bitmap(width, height);  
47             webBrowser.DrawToBitmap(bitmap, new System.Drawing.Rectangle(0, 0, width, height));  
48   
49             //设置图片文件保存路径和图片格式，格式可以自定义  
50             string filePath = AppDomain.CurrentDomain.BaseDirectory + "Img\\" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".png";  
51             bitmap.Save(filePath, System.Drawing.Imaging.ImageFormat.Png);  
52         }  
53   
54         private void button1_Click(object sender, EventArgs e)  
55         {  
56             ConvertToImg();  
57         }  
58     }  
59   
60 }