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在Asp.net中使用JQuery插件之jTip代码

默认支持两个参数：
width宽度，default value :250px
link 要link的URL
对应的Source code是:
复制代码 代码如下:

var params = parseQuery( queryString );
if(params[width] === undefined){params[width] = 250};
if(params[link] !== undefined){
$(# + linkId).bind(click,function(){window.location = params[link]});
$(# + linkId).css(cursor,pointer);
}

然后我们看到初始化时，是选择所有class=jTip的<a>标签，然后给它们加上hover方法，让click方法失效
复制代码 代码如下:

//on page load (as soon as its ready) call JT_init
$(document).ready(JT_init);
function JT_init(){
$("a.jTip")
.hover(function(){JT_show(this.href,this.id,this.name)},function(){$(#JT).remove()})
.click(function(){return false});
}

接着取得当前id的位置计算将要显示DIV的位置，code也不复杂：
复制代码 代码如下:

if(hasArea>((params[width]*1)+75)){
$("body").append("<div id=JT style=width:"+params[width]*1+"px><div id=JT_arrow_left></div><div id=JT_close_left>"+title+"</div><div id=JT_copy><div class=JT_loader><div></div></div>");//right side
var arrowOffset = getElementWidth(linkId) + 11;
var clickElementx = getAbsoluteLeft(linkId) + arrowOffset; //set x position
}else{
$("body").append("<div id=JT style=width:"+params[width]*1+"px><div id=JT_arrow_right style=left:"+((params[width]*1)+1)+"px></div><div id=JT_close_right>"+title+"</div><div id=JT_copy><div class=JT_loader><div></div></div>");//left side
var clickElementx = getAbsoluteLeft(linkId) - ((params[width]*1) + 15); //set x position
}
$(#JT).css({left: clickElementx+"px", top: clickElementy+"px"});
$(#JT).show();
$(#JT_copy).load(url);

其它的一些help function可以参看source code，你可以从这里下载它.
如何使用呢？我们引入它与相应的CSS：
复制代码 代码如下:

<script type="text/javascript" src="http://ajax.microsoft.com/ajax/jQuery/jquery-1.3.2.min.js"></script>
<script src="js/jtip.js" type="text/javascript"></script>

在asp.net webform中使用Handler,asp.net mvc 可以用action.这个用Handler演示：
复制代码 代码如下:

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class DataHandler : IHttpHandler
{
#region Properties (1)
public bool IsReusable
{
get
{
return false;
}
}
#endregion Properties
#region Methods (2)
// Public Methods (1)
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
context.Response.Write(GetData(Convert.ToInt32(context.Request.QueryString["id"])));
}
// Private Methods (1)
private string GetData(int key)
{
Dictionary<int, string> mydatadic = new Dictionary<int, string>();
mydatadic.Add(0, "Nothing in life is to be feared. It is only to be understood,this is id equal 0");
mydatadic.Add(1, "<strong>A man</strong> is not old as long as he is seeking something. A man is not old until regrets take the place of dreams. ,this is id equal 1");
mydatadic.Add(2, "A man can succeed at almost anything for which he has unlimited enthusiasm.,this is id equal 2");
mydatadic.Add(3, "To live is to function. That is all there is in living. ,this is id equal 3");
return mydatadic[key];
}
#endregion Methods
}

好的，在最终的HTML中这么写：
复制代码 代码如下:

<span class="formInfo"><a href="DataHandler.ashx?id=0&width=375" class="jTip" id="one" name="Password must follow these rules:">?</a></span>
<br>
<p><a href="DataHandler.ashx?id=3&width=175&link=http://www.google.com" name="Before You Click..." id="googleCopy" class="jTip">Go To Google</a></p>
<a href="DataHandler.ashx?id=3" class="jTip" id="three">Tip No Caption</a>

默认是取name attribute value为Caption，上面是三种典型的link 。id是我们自己传给Handler的QueryString,最终效果如下图所示：

jtip_1

希望这篇POST对您有帮助 。