比较好看吧.
根据书上例子自己写了一下,用VS2005写,特别方便,代码如下
using System;
using System.ComponentModel;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
namespace ClingingBoy
{
[DefaultProperty("text"),
ToolboxData("<{0}:Cingmenu runat=server>")]
///
/// cingmenu 的摘要说明
///
public class Cingmenu:WebControl
{
#region 定义变量
private string text = "";
private string href = "";
private string width = "20%";
private string height = "";
private string fontfamily = "宋体";
private string fontsize = "12px";
private string target = "_self";
private bool displayPipe = true;
#endregion
#region 构造函数
public Cingmenu():base(HtmlTextWriterTag.Div)
{
}
#endregion
#region 定义属性
[Description("该属性用于表示控件显示的文字内容"),
Bindable(true),
Category("Appearance"),
DefaultValue("")]
public string Text
{
get
{
return text;
}
set
{
text = value;
}
}
[Description("该属性用于表示控件的链接地址"),
Bindable(true),
Category("Appearance"),
DefaultValue("")]
public string Href
{
get
{
return href;
}
set
{
href = value;
}
}
[Description("该属性用于表示控件显示的文字大小"),
Bindable(true),
Category("Appearance"),
DefaultValue("12px")]
public string FontSize
{
get
{
return fontsize;
}
set
{
fontsize = value;
}
}
[Description("该属性用于表示控件显示的文字字体类型"),
Bindable(true),
Category("Appearance"),
DefaultValue("宋体")]
public string FontFamily
{
get
{
return fontfamily;
}
set
{
fontfamily = value;
}
}
[Description("该属性用于表示控件的链接的目标框架"),
Bindable(true),
Category("Appearance"),
DefaultValue("宋体")]
public string Target
{
get
{
return target;
}
set
{
target = value;
}
}
[Description("该属性用于表示控件是否显示分隔符 | "),
Bindable(true),
Category("Appearance"),
DefaultValue("true")]
public bool DisplayPipe
{
get
{
return displayPipe;
}
set
{
displayPipe = value;
}
}
#endregion
protected override void AddAttributesToRender(HtmlTextWriter output)
{
//定义控件div的样式style="WHITE-SPACE: nowrap;BORDER-TOP: #999 1px solid;BACKGROUND: #f1f1f1; PADDING-BOTTOM: 2px; PADDING-TOP: 1px; BORDER-BOTTOM: #999 1px solid"
output.AddStyleAttribute(HtmlTextWriterStyle.BackgroundColor, "#f1f1f1");
output.AddStyleAttribute("white-space", "nowrap");
output.AddStyleAttribute("BORDER-TOP", "#999 1px solid");
output.AddStyleAttribute("BORDER-BOTTOM", "#999 1px solid");
output.AddStyleAttribute("PADDING-BOTTOM", "2px");
output.AddStyleAttribute("PADDING-TOP", "2px");
output.AddStyleAttribute("WIDTH", width);
output.AddStyleAttribute("HEIGHT", height);
base.AddAttributesToRender(output);
}
///
/// 呈现控件的方法RenderContents
///
protected override void RenderContents(HtmlTextWriter output)
{
//定义样式
output.AddStyleAttribute(HtmlTextWriterStyle.Width, "10px");
output.AddStyleAttribute(HtmlTextWriterStyle.FontSize, fontsize);
output.AddStyleAttribute(HtmlTextWriterStyle.FontFamily, fontfamily);
output.RenderBeginTag(HtmlTextWriterTag.Span);
//定义样式
////onmouseover="this.style.cssText=’color:black;text-decoration:none;BORDER: #999 1px solid; DISPLAY: block; PADDING-RIGHT: 6px; PADDING-LEFT: 6px; PADDING-BOTTOM: 2px; PADDING-TOP: 2px;BACKGROUND: #ccc; ’"
//style="color:black;text-decoration:none;BORDER: #f1f1f1 1px solid;DISPLAY: block; PADDING-RIGHT: 6px; PADDING-LEFT: 6px; PADDING-BOTTOM: 2px;PADDING-TOP: 2px;" href="http://localhost">文字内容
output.AddStyleAttribute(HtmlTextWriterStyle.Color, "black");
output.AddStyleAttribute(HtmlTextWriterStyle.TextDecoration, "none");
output.AddStyleAttribute("BORDER", "#f1f1f1 1px solid");
output.AddStyleAttribute("DISPLAY", "block");
output.AddStyleAttribute("PADDING-RIGHT", "6px");
output.AddStyleAttribute("PADDING-LEFT", "6px");
output.AddStyleAttribute("PADDING-BOTTOM", "2px");
output.AddStyleAttribute("PADDING-TOP", "2px");
output.AddAttribute("onmouseout", "this.style.cssText=’color:black;text-decoration:none;BORDER: #f1f1f1 1px solid; DISPLAY: block; PADDING-RIGHT: 6px;PADDING-LEFT: 6px; PADDING-BOTTOM: 2px; PADDING-TOP: 2px; ’");
output.AddAttribute("onmouseover", "this.style.cssText=’color:black;text-decoration:none;BORDER: #999 1px solid; DISPLAY: block; PADDING-RIGHT: 6px; PADDING-LEFT: 6px; PADDING-BOTTOM: 2px; PADDING-TOP: 2px;BACKGROUND: #ccc; ’");
//定义属性Href,Target
output.AddAttribute(HtmlTextWriterAttribute.Href, href);
output.AddAttribute(HtmlTextWriterAttribute.Target, target);
output.RenderBeginTag(HtmlTextWriterTag.A);
output.Write(text);
if (displayPipe)
{
output.AddStyleAttribute(HtmlTextWriterStyle.Color, "#a9a9a9");
output.AddStyleAttribute("FONT", "70%");
output.AddStyleAttribute(HtmlTextWriterStyle.FontSize, fontsize);
output.AddStyleAttribute("PADDING-RIGHT", "3px");
output.AddStyleAttribute("PADDING-LEFT", "3px");
output.RenderBeginTag(HtmlTextWriterTag.Span);
output.Write("|");
output.RenderEndTag();
}
else
{
output.RenderBeginTag(HtmlTextWriterTag.Span);
output.Write(" ");
output.RenderEndTag();
}
output.RenderEndTag();
output.RenderEndTag();
//定义分隔符及样式
//使用默认逻辑来呈现子控件
base.RenderContents(output);
}
}
}
前台的
@ Page Language="C#" %>
@ Register Assembly="CingMenu" Namespace="ClingingBoy" TagPrefix="cc2" %>
DOCTYPE html PUBLIC "-//W3C//DTD