1using System;
2using System.Web.UI;
3using System.Web.UI.WebControls;
4using System.ComponentModel;
5using System.Text;
6namespace FlashAdRotator
7{
8 /// <summary>
9 /// fpAdRotator 的摘要说明。
10 /// </summary>
11 [DefaultProperty("Text"),
12 ToolboxData("<{0}:fpAdRotator runat=server></{0}:fpAdRotator>")]
13 public class fpAdRotator : System.Web.UI.WebControls.AdRotator
14 {
15 private bool isflashad;
16 private string imgurl;
17 [Bindable(true),
18 Category("Appearance"),
19 DefaultValue("")]
20 /// <summary>
21 /// 将此控件呈现给指定的输出参数。
22 /// </summary>
23 /// <param name="output"> 要写出到的 HTML 编写器 </param>
24 protected override void Render(HtmlTextWriter output)
25 {
26 try
27 {
28 if(isflashad==true)
29 {
30 StringBuilder sb=new StringBuilder("<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\"");
31 sb.Append("codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0\" width={0} height={1}>");
32 sb.Append("<param name=\"movie\" value={2} />");
33 sb.Append("<param name=\"quality\" value=\"high\"/>");
34 sb.Append("<embed src={3} quality=\"high\"");
35 sb.Append("pluginspage=\"http://www.macromedia.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" width={4} height={5}></embed></object>");
36 StringBuilder outstr=new StringBuilder();
37 outstr.AppendFormat(sb.ToString(),this.Width,this.Height,this.imgurl,this.imgurl,this.Width,this.Height);
38 output.Write(outstr);
39 }
40 if(isflashad==false)
41 {
42 //this.Render(output);
43 base.Render (output);
44 }
45 }
46 catch
47 {
48 StringBuilder sb=new StringBuilder("<table><tr>广告媒体不存在<td></td></tr><table>");
49 output.Write(sb);
50 }
51 }
52 protected override void OnAdCreated(AdCreatedEventArgs e)
53 {
54 if(e.ImageUrl.ToLower().IndexOf(".swf")!=-1)
55 {
56 this.isflashad=true;
57 this.imgurl=e.ImageUrl;
58 }
59 else
60 {
61 this.isflashad=false;
62 }
63 }
64 }
65}
66
vs自带的AdRotator 不支持flash显示,而我又要用到这个功能,在网上搜罗了一阵,找到一个老外写的vb版本的,地址为:http://www.dnzone.com/ShowDetail.asp?NewsId=901。但我的项目都是用C#做的,索性自己改成C#的,思路是按照老外的走的,很简单的东西,这也是我第一个控件,谈不上原创,但是C#版的这个网上我还是没有找到。呵呵。编译环境 vs2003+window server 2003 。源码我已经测试通过。2using System.Web.UI;
3using System.Web.UI.WebControls;
4using System.ComponentModel;
5using System.Text;
6namespace FlashAdRotator
7{
8 /// <summary>
9 /// fpAdRotator 的摘要说明。
10 /// </summary>
11 [DefaultProperty("Text"),
12 ToolboxData("<{0}:fpAdRotator runat=server></{0}:fpAdRotator>")]
13 public class fpAdRotator : System.Web.UI.WebControls.AdRotator
14 {
15 private bool isflashad;
16 private string imgurl;
17 [Bindable(true),
18 Category("Appearance"),
19 DefaultValue("")]
20 /// <summary>
21 /// 将此控件呈现给指定的输出参数。
22 /// </summary>
23 /// <param name="output"> 要写出到的 HTML 编写器 </param>
24 protected override void Render(HtmlTextWriter output)
25 {
26 try
27 {
28 if(isflashad==true)
29 {
30 StringBuilder sb=new StringBuilder("<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\"");
31 sb.Append("codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0\" width={0} height={1}>");
32 sb.Append("<param name=\"movie\" value={2} />");
33 sb.Append("<param name=\"quality\" value=\"high\"/>");
34 sb.Append("<embed src={3} quality=\"high\"");
35 sb.Append("pluginspage=\"http://www.macromedia.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" width={4} height={5}></embed></object>");
36 StringBuilder outstr=new StringBuilder();
37 outstr.AppendFormat(sb.ToString(),this.Width,this.Height,this.imgurl,this.imgurl,this.Width,this.Height);
38 output.Write(outstr);
39 }
40 if(isflashad==false)
41 {
42 //this.Render(output);
43 base.Render (output);
44 }
45 }
46 catch
47 {
48 StringBuilder sb=new StringBuilder("<table><tr>广告媒体不存在<td></td></tr><table>");
49 output.Write(sb);
50 }
51 }
52 protected override void OnAdCreated(AdCreatedEventArgs e)
53 {
54 if(e.ImageUrl.ToLower().IndexOf(".swf")!=-1)
55 {
56 this.isflashad=true;
57 this.imgurl=e.ImageUrl;
58 }
59 else
60 {
61 this.isflashad=false;
62 }
63 }
64 }
65}
66
关于怎么使用的问题我就不说了,希望大家多多探讨!