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

  最近项目在 IE 11 下<asp:LinkButton> 点击出现 “__doPostBack”未定义”,经过一番google,终于知道了原因:ASP.NET 可能无法辨识出一些浏览器的最新版本,还会经常把它们看做是低级的浏览器。(也就是: 不支持JavaScript。)

详见: http://blogs.msdn.com/b/scott_hanselman/archive/2011/10/28/asp-net-ie10-dopostback-javascript-ff5.aspx
本人按照该文所提供的解决办法始终未能得到解决,于是按提示尝试用单个站点的方式修复。
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>

 

 

自己在项目中添加的文件:

<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>

 

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