当前文件路径：HeroBeastControlsNavMenu/NavMenu/NavMenu.cs 
1
using System;
2using System.Collections.Generic;
3using System.ComponentModel;
4using System.Drawing.Design;
5using System.Text;
6using System.Web;
7using System.Web.UI;
8using System.Web.UI.WebControls;
9using System.Web.UI.HtmlControls;
10using System.Collections;
11using System.Drawing;
12//该源码下载自www.51aspx.com(５1ａｓｐｘ．ｃｏｍ)
13
14namespace HeroBeastControls.NavMenu
15
...{
16
17 [DesignerAttribute(typeof(NavMenuDesigner))]
18 [DefaultProperty("Text")]
19 [ToolboxData("<{0}:NavMenu runat=server></{0}:NavMenu>")]
20 [ParseChildren(true, "ListItems")]
21 public class NavMenu : WebControl, INamingContainer
22
...{
23 bool _supportJS = true;
24 属性#region 属性
25 /**//// <summary>
26 /// 定义项集合属性
27
/// </summary>
28 private NavMenuItems _ListItems;
29 [
30 Category("Behavior"),
31 Description("项集合"),
32 DesignerSerializationVisibility(
33 DesignerSerializationVisibility.Content),
34 PersistenceMode(PersistenceMode.InnerDefaultProperty),
35 Editor(typeof(NavMenuItemEditor), typeof(UITypeEditor))
36 ]
37 public NavMenuItems ListItems
38 ...{
39 get
40 ...{
41 if (_ListItems == null)
42 ...{
43 _ListItems = new NavMenuItems();
44
45 }
46 return _ListItems;
47 }
48 }
49
50
51 [UrlProperty("*.css")]
52 [Category("Behavior")]
53 [DefaultValue(CssFilePathConverter.EmbeddedCss)]
54 [Editor(typeof(CssUrlEditor), typeof(UITypeEditor))]
55 [Description("通过指定外部CSS文件定制控件的样式。")]
56 public string CssFilePath
57 ...{
58 get
59 ...{
60 if (ViewState["CssFilePath"] == null)
61 return CssFilePathConverter.EmbeddedCss;
62 else
63 return (string)ViewState["CssFilePath"];
64 }
65 set
66 ...{
67 ViewState["CssFilePath"] = value;
68 }
69 }
70
71
72 public override Unit Height
73 ...{
74 get
75 ...{
76 return base.Height;
77 }
78 set
79 ...{
80 base.Height = value;
81 }
82 }
83 [DefaultValue("100%")]
84 public override Unit Width
85 ...{
86 get
87 ...{
88 return base.Width;
89 }
90 set
91 ...{
92 base.Width = value;
93 }
94 }
95 #endregion
96
97 构造函数#region 构造函数
98 public NavMenu()
99 : base(HtmlTextWriterTag.Div)
100 ...{
101
102 }
103 #endregion
104
105 RenderContents#region RenderContents
106 protected override void RenderContents(HtmlTextWriter writer)
107 ...{
108 System.Text.StringBuilder sb = new StringBuilder();
109 //sb.Append("<div id=\"MenuAll\">");
110 sb.Append("</br>");
111 sb.Append(" <div class=\"NavMenuContainer\" id=\"" + this.ClientID + "_Container" + "\" style=\"float:left\">");
112 //NavMenuItems
113 //<div class="collapsed">
114 // <span class="sys">系统设置中心</span>
115 // <a title="站点基础信息" href="#">站点基础信息</a>
116 // <a title="搜索引擎优化" href="#">搜索引擎优化</a>
117 // <a title="相关功能设置" href="#">相关功能设置</a>style=" background-image:url()"
118 // </div>
119 if (_ListItems != null)
120 ...{
121 foreach (NavMenuItem item in _ListItems)
122 ...{
123 sb.Append("<div class=\"collapsed\">");
124 sb.Append(string.Format("<span class=\"{0}\">{1}</span> ", item.CssClass, item.Text));
125
126 if (item.Items != null)
127 ...{
128 foreach (NavMenuSubItem li in item.Items)
129 ...{
130 sb.Append(string.Format("<a title=\"{0}\" href=\"{1}\" target=\"{2}\" class=\"{3}\">{4}</a> ",
131 li.Title, li.NavigationURL, li.Target, li.CssClass, li.Text));
132 //sb.Append("</br>");
133 }
134 }
135 sb.Append("</div>");
136 // sb.Append("</br>");
137 }
138 }
139 //
140 sb.Append("</div>");
141 // sb.Append("</div>");
142
143 writer.Write(sb.ToString());
144
145 base.RenderContents(writer);
146 }
147 #endregion
148
149 AddAttributesToRender#region AddAttributesToRender
150 protected override void AddAttributesToRender(HtmlTextWriter writer)
151 ...{
152 writer.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClass);
153 base.AddAttributesToRender(writer);
154 }
155 #endregion
156
157
158 OnPreRender#region OnPreRender
159 protected override void OnPreRender(EventArgs e)
160 ...{
161 EnsureID();
162 if (!DesignMode)
163 ...{
164 if (Page.Request.Browser.EcmaScriptVersion.Major < 1
165 || Page.Request.Browser.W3CDomVersion.Major < 1)
166 ...{
167 _supportJS = false;
168 }
169 }
170 if (_supportJS)
171 ...{
172 RegisterCSSFile(this);
173 RegisterJavascriptFile();
174 RegisterJavascript();
175 }
176 }
177 #endregion
178
179 注册CSS文件#region 注册CSS文件
180 public bool RegisterCSSFile(NavMenu control)
181 ...{
182 if (!DesignMode)
183 ...{
184 string cssFile = control.CssFilePath;
185 if (cssFile == CssFilePathConverter.EmbeddedCss)
186 cssFile = control.GetWebResourceCSSPath();
187 return control.RegisterCSSFile(control.Page.Header, cssFile);
188 }
189 return false;
190 }
191
192 string GetWebResourceCSSPath()
193 ...{
194 return Page.ClientScript.GetWebResourceUrl(typeof(NavMenu), "NavMenu.CSS.NavMenu.css");
195 }
196 bool RegisterCSSFile(HtmlHead head, string cssFile)
197 ...{
198 bool added = false;
199 foreach (Control c in head.Controls)
200 ...{
201 HtmlLink link = c as HtmlLink;
202 if (link != null)
203 ...{
204 if (link.Href == cssFile)
205 ...{
206 added = true;
207 break;
208 }
209 }
210 }
211 if (!added)
212 ...{
213 HtmlLink link = new HtmlLink();
214 link.Href = cssFile;
215 link.Attributes["type"] = "text/css";
216 link.Attributes["rel"] = "Stylesheet";
217 link.Attributes["rev"] = "Stylesheet";
218 head.Controls.Add(link);
219 added = true;
220 }
221 return added;
222 }
223 #endregion
224
225 注册JS#region 注册JS
226 public void RegisterJavascriptFile()
227 ...{
228 Page.ClientScript.RegisterClientScriptResource(typeof(NavMenu), "NavMenu.Javascript.NavMenu.js");
229
230 }
231 public void RegisterJavascript()
232 ...{
233 string strContainer = this.ClientID + "_Container";
234 System.Text.StringBuilder sb = new StringBuilder();
235
236 sb.Append("\n");
237 sb.Append("\n\t");
238 sb.Append("var " + strContainer + ";");
239 sb.Append("\n\t");
240 sb.Append("window.onload = function() { " + strContainer + " = new NavMenu(\"" + strContainer + "\");");
241 sb.Append(strContainer + ".init();}\n\t");
242 sb.Append("\n");
243
244 Page.ClientScript.RegisterStartupScript(typeof(NavMenu), strContainer, sb.ToString(), true);
245
246
247 }
248 #endregion
249
250
251
252 }
253
}
254
打包下载该项目完整源码：HeroBeastControls的NavMenu导航控件Demo及源码
