01.using System;
02.using System.Collections;
03.using System.Configuration;
04.using System.Data;
05.using System.Linq;
06.using System.Web;
07.using System.Web.Security;
08.using System.Web.UI;
09.using System.Web.UI.HtmlControls;
10.using System.Web.UI.WebControls;
11.using System.Web.UI.WebControls.WebParts;
12.using System.Xml.Linq;
13.
14.public partial class MyPage : System.Web.UI.Page
15.{
16. protected void Page_Load(object sender, EventArgs e)
17. {
18. CheckBox1.Attributes.Add("OnClick", "ck_frm()");
19. AddJavaScript();
20. }
21.
22. private void AddJavaScript()
23. {
24.
25. System.Text.StringBuilder sb = new System.Text.StringBuilder();
26. sb.Append("<script language=\"javascript\">\n");
27. sb.Append("function ck_frm()\n");
28. sb.Append("{\n");
29. sb.Append("\t var ck = document.getElementById('");
30. sb.Append(CheckBox1.ClientID);
31. sb.Append("');\n");
32. sb.Append("\t var dv = document.getElementById('");
33. sb.Append(Panel1.ClientID);
34. sb.Append("');\n\n");
35. sb.Append("\t if (ck.checked == true)\n");
36. sb.Append("\t {\n");
37. sb.Append("\t\t dv.style.display = '';\n");
38. sb.Append("\t }\n");
39. sb.Append("\t else\n");
40. sb.Append("\t {\n");
41. sb.Append("\t\t dv.style.display = 'none';\n");
42. sb.Append("\t }\n}\n");
43. sb.Append("</script>\n\n");
44.
45.
46. ClientScriptManager cs = Page.ClientScript;
47.
48. if (!cs.IsClientScriptBlockRegistered(this.GetType(), "ck_frm"))
49. cs.RegisterClientScriptBlock(this.GetType(), "ck_frm", sb.ToString(), false);
50. }
51.}
