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  • 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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  • 原文地址:https://www.cnblogs.com/ysyn/p/3796150.html
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