网页播放器更改播放地址（高分求解）
我现在在网页中加上一个播放器，代码如下：
<object id= "MediaPlayer " height= "65 " width= "500 " classid= "CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6 " VIEWASTEXT>
<param name= "URL " value= "E:/document of nick/My Music/茶汤.mp3 " />
<param name= "rate " value= "1 " />
<param name= "balance " value= "0 " />
<param name= "currentPosition " value= "0 " />
<param name= "playCount " value= "1 " />
<param name= "autoStart " value= "1 " />
<param name= "currentMarker " value= "0 " />
<param name= "invokeURLs " value= "-1 " />
<param name= "volume " value= "50 " />
<param name= "mute " value= "0 " />
<param name= "uiMode " value= "mini " />
<param name= "stretchToFit " value= "0 " />
<param name= "windowlessVideo " value= "0 " />
<param name= "enabled " value= "1 " />
<param name= "enableContextMenu " value= "0 " />
</object>
用的WMP，在这个代码中我的播放地址参数 <param name= "URL " value= "E:/document of nick/My Music/茶汤.mp3 " /> 是硬编码上去的，但是我现在想将value值的值在后端动态的更改（后端代码用的C#)，请问有什么方法可以达到这个目的？？
[解决办法]
在后端的cs文件中加一个public变量，如public string playurl；
然后在aspx文件中直接引用就可以了：
<param name= "URL " value= " <%=playurl%> " />
改成这样比较合理
<param name= "URL " value= " <%#playurl%> " />
