asp.net 项目在 IE 11 下出现 “__doPostBack”未定义的解决办法

浏览数：30 / 时间：2015年06月09日

解决方法：

在项目根目录 App_Browsers 下新建浏览器文件(.browser)，让其与IE11的 UserAgent 匹配，使 .net framework 认识这是一个已知的浏览器，可以正常地向客户端输出脚本。
在文件里输入以下内容，保存即可。

<browsers>
     <browser id="IE11" 
parentID="Mozilla">
        <identification>
         <userAgent match="Trident\/7.0; rv:(?‘version‘(?‘major‘\d+)(\.(?‘minor‘\d+)?)(?‘letters‘\w*))(?‘extra‘[^)]*)" 
/>
          <userAgent nonMatch="IEMobile" 
/>
        </identification>
        <capture>
          <userAgent match="Trident/(?‘layoutVersion‘\d+)" 
/>
       </capture>
       <capabilities>
         <capability name="browser"              
value="IE" 
/>
         <capability name="layoutEngine"         
value="Trident" 
/>
         <capability name="layoutEngineVersion"  
value="${layoutVersion}" 
/>
        <capability name="extra"                
value="${extra}" 
/>
        <capability name="isColor"              
value="true" 
/>
        <capability name="letters"              
value="${letters}" 
/>
         <capability name="majorversion"         
value="${major}" 
/>
         <capability name="minorversion"         
value="${minor}" 
/>
         <capability name="screenBitDepth"       
value="8" 
/>
         <capability name="type"                 
value="IE${major}" 
/>
         <capability name="version"              
value="${version}" 
/>
       </capabilities>
     </browser>
     
    <!-- Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11,0) like Gecko -->
    <browser id="IE110" 
parentID="IE11">
       <identification>
         <capability name="majorversion" 
match="11" 
/>
       </identification>
     
       <capabilities>
        <capability name="ecmascriptversion"    
value="3.0" 
/>
        <capability name="jscriptversion"       
value="5.6" 
/>
        <capability name="javascript"           
value="true" 
/>
        <capability name="javascriptversion"    
value="1.5" 
/>
         <capability name="msdomversion"         
value="${majorversion}.${minorversion}" 
/>
         <capability name="w3cdomversion"        
value="1.0" 
/>
        <capability name="ExchangeOmaSupported" 
value="true" 
/>
         <capability name="activexcontrols"      
value="true" 
/>
         <capability name="backgroundsounds"     
value="true" 
/>
         <capability name="cookies"              
value="true" 
/>
         <capability name="frames"               
value="true" 
/>
         <capability name="javaapplets"          
value="true" 
/>
         <capability name="supportsCallback"     
value="true" 
/>
         <capability name="supportsFileUpload"   
value="true" 
/>
         <capability name="supportsMultilineTextBoxDisplay" 
value="true" 
/>
        <capability name="supportsMaintainScrollPositionOnPostback" 
value="true" 
/>
        <capability name="supportsVCard"        
value="true" 
/>
        <capability name="supportsXmlHttp"      
value="true" 
/>
        <capability name="tables"               
value="true" 
/>
         <capability name="supportsAccessKeyAttribute"    
value="true" 
/>
         <capability name="tagwriter"            
value="System.Web.UI.HtmlTextWriter" 
/>
         <capability name="vbscript"             
value="true" 
/>
       </capabilities>
     </browser>
   </browsers>
　　