asp.net错误 未声明名称“Label2”

我明明在网页中有错误 Label2。。（我是在VS拉过去的。为什么会出现这个?之前都不会的） 
突然出现这个。。Label都写了runat="server"...突然这样了？？
错误 1 未声明名称“Label2”。 C:\Documents and Settings\Administrator\桌面\Ro网站\Default.aspx.vb 22 13 C:\...\Ro网站\ 
错误 2 未声明名称“Label1”。 C:\Documents and Settings\Administrator\桌面\Ro网站\Default.aspx.vb 25 13 C:\...\Ro网站\ 
错误 3 未声明名称“Label3”。 C:\Documents and Settings\Administrator\桌面\Ro网站\Default.aspx.vb 28 13 C:\...\Ro网站\ 
错误 4 未声明名称“Label1”。 C:\Documents and Settings\Administrator\桌面\Ro网站\Default.aspx.vb 30 13 C:\...\Ro网站\

解决方案 »

  1.   

    估计你曾经拖进一个label控件，后来又删除了
      

  2.   

    <%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" aspcompat=true%>
    【省略……】
    <body style="background-image: url('bg.jpg')"><form id="form1" Runat="server">
    【省略……】
    </tr>
    <tr>
    <td style="width: 130px"></td>
    <td class="style7">
    <table style="width: 100%" class="style1">
    <tr>
    <td style="width: 316px">注册用户：</td>
    <td>
                                                <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
                                                &nbsp;</td>
    </tr>
    <tr>
    <td style="width: 316px">工会个数：</td>
    <td>
                                                <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>
                                                &nbsp;</td>
    </tr>
    <tr>
    <td style="width: 316px">创建人物：</td>
    <td>
                                                <asp:Label ID="Label3" runat="server" Text="Label"></asp:Label></td>
    </tr>
    <tr>
    <td style="width: 316px; height: 23px;">&nbsp;</td>
    <td style="height: 23px">&nbsp;</td>
    </tr>
    </table>
    </td>
    </tr>
    <tr>
    <td style="width: 130px">&nbsp;</td>
    <td style="text-align: center">
    <img alt="" src="down.gif" width="562" height="39" /></td>
    </tr>
    <tr>
    <td style="width: 130px">&nbsp;</td>
    <td style="text-align: center">
    <table style="width: 100%" class="style1">
    <tr>
    <td><a href="reg.aspx">注册帐号</a></td>
    <td>修改密码</td>
    </tr>
    <tr>
    <td>查看仓库</td>
    <td>领取物品</td>
    </tr>
    <tr>
    <td><a href="http://bbs.i838.cn/">论坛讨论</a></td>
    <td><a href="download.aspx">游戏下载</a></td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    <table width="726" border="0" align="right" cellpadding="0" cellspacing="0">
    <tr>
    <td><img src="title_foot.gif" width="726" height="24"></td>
    </tr>
    </table>
    </td>
    <td valign="top">
    <table width="251" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td>
    <img src="t_top.gif" width="251" height="129" title="DDTbase仙境传说官方网站"></td>
    </tr>
    <tr>
    <td height="393" valign="top" background="images/right_bg02.gif">
    <table width="235" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td align="center" valign="top" background="t_right_bg.gif">
    <img src="icon_00.gif" width="135" height="34"></td>
    </tr>
    <tr>
    <td background="t_right_bg.gif">
    <table width="138" border="0" align="center" cellpadding="0" cellspacing="0">
    <tr>
    <td>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td>
    <a href="reg.aspx" target="main">
    <img src="icon_01.gif" width="135" height="26" border="0" id="IMG1" usemap="reg.aspx"></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td><a target="main">
    <img src="icon_02.gif" width="135" height="26" border="0"></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td><a target="main">
    <img src="icon_03.gif" width="135" height="26" border="0"></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td><a target="main">
    <img src="icon_04.gif" width="135" height="26" border="0" /></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td><a target="main">
    <img src="icon_05.gif" width="135" height="26" border="0"></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td><a target="main">
    <img src="icon_06.gif" width="135" height="26" border="0"></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    <table width="138" border="0" cellspacing="0" cellpadding="4">
    <tr>
    <td><a target="main">
    <img src="icon_07.gif" width="135" height="26" border="0" /></a></td>
    </tr>
    <tr>
    <td height="1" align="center"></td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    <table width="235" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td>
    <img src="t_right_foot.gif" width="235" height="86"></td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    <table width="1002" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td align="center">
    <table width="1002" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td style="height: 21px"></td>
    </tr>
    </table>
    </td>
    </tr>
    </table>
    </form>
    <br></body></html>
      

  3.   

    原来有过一次这样的情况,明明有控件去说没有.听说是vs的bug