Onchanged没相应，为什么？
<meta   content= "Microsoft   Visual   Studio   .NET   7.1 "   name= "GENERATOR ">
<meta   content= "C# "   name= "CODE_LANGUAGE ">
<meta   content= "JavaScript "   name= "vs_defaultClientScript ">
<metacontent= "http://schemas.microsoft.com/intellisense/ie5 "name= "vs_targetSchema ">
<LINK   href= "../CSS/MainStyle.css "   type= "text/css "   rel= "stylesheet ">
<scriptlanguage= "javascript "src= "../JS/OpenWin.js "type= "text/javascript "> </script>
<script   language= "javascript ">
  function   DateCheck()
        {
var   result;
var   a   =   document.getElementById( "txtTrnQty ").value;
var   b   =   document.getElementById( "txtPrice ").value;
var   c=   document.getElementById( "txtAmount ").value;
result   =   a*b;
document.getElementById( "txtAmount ").value=result   ;
}
<tr> <td> 数量 </td> <td> <asp:textbox   id= "txtPrice "   Runat= "server "   </asp:textbox> <td> <td> 单价 </td>
<td> <asp:textbox   id= "txtPrice "Runat= "server "   OnChanged= "DateCheck(); "   AutoPostBack=False> </asp:textbox> <td>
<td> 总金额 </td>
<td> <asp:textbox   id= "txtAmount "Runat= "server "> </asp:textbox> <td>
</tr>
为什么我输入数量和单价之后不会显示总金额亚？
我这样写为什么不行，这里要实现数量×单价＝总金额怎么实现呢？

------解决方案--------------------
sf?
------解决方案--------------------
试试改成这样：
<asp:textbox id= "txtPrice " Runat= "server " AutoPostBack=False> </asp:textbox>
然后在.cs的Page_Load事件中：
if (!this.IsPostBack)
{
this.txtPrice.Attribute.Add( "onchange ", "DateCheck(); ");
}
------解决方案--------------------
觉得应该使用客户端的脚本来操作...
否则和服务器频繁的传来传去,太慢了...
------解决方案--------------------
<td> <asp:textbox id= "txtPrice "Runat= "server " OnChanged= "DateCheck(); " AutoPostBack=False> </asp:textbox> <td>
改为
<td> <asp:textbox id= "txtPrice "Runat= "server " OnChanged= "DateCheck(); " AutoPostBack=True> </asp:textbox> <td>

------解决方案--------------------
好久没写过了,不过你的javascript的function没有结束 </script>