IE11“__doPostBack”未定义”

IE 11 下<asp:LinkButton> 点击出现 “__doPostBack”未定义”

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。

[html] view plaincopyprint?在CODE上查看代码片派生到我的代码片
  1. <browsers> 
  2. <browser id="IE11" parentID="Mozilla"> 
  3. <identification> 
  4. <userAgent match="Trident/7.0; rv:(?'version'(?'major'd+)(.(?'minor'd+)?)(?'letters'w*))(?'extra'[^)]*)" /> 
  5. <userAgent nonMatch="IEMobile" /> 
  6. </identification> 
  7. <capture> 
  8. <userAgent match="Trident/(?'layoutVersion'd+)" /> 
  9. </capture> 
  10. <capabilities> 
  11. <capability name="browser" value="IE" /> 
  12. <capability name="layoutEngine" value="Trident" /> 
  13. <capability name="layoutEngineVersion" value="${layoutVersion}" /> 
  14. <capability name="extra" value="${extra}" /> 
  15. <capability name="isColor" value="true" /> 
  16. <capability name="letters" value="${letters}" /> 
  17. <capability name="majorversion" value="${major}" /> 
  18. <capability name="minorversion" value="${minor}" /> 
  19. <capability name="screenBitDepth" value="8" /> 
  20. <capability name="type" value="IE${major}" /> 
  21. <capability name="version" value="${version}" /> 
  22. </capabilities> 
  23. </browser> 
  24.  
  25. <!-- Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11,0) like Gecko --> 
  26. <browser id="IE110" parentID="IE11"> 
  27. <identification> 
  28. <capability name="majorversion" match="11" /> 
  29. </identification> 
  30.  
  31. <capabilities> 
  32. <capability name="ecmascriptversion" value="3.0" /> 
  33. <capability name="jscriptversion" value="5.6" /> 
  34. <capability name="javascript" value="true" /> 
  35. <capability name="javascriptversion" value="1.5" /> 
  36. <capability name="msdomversion" value="${majorversion}.${minorversion}" /> 
  37. <capability name="w3cdomversion" value="1.0" /> 
  38. <capability name="ExchangeOmaSupported" value="true" /> 
  39. <capability name="activexcontrols" value="true" /> 
  40. <capability name="backgroundsounds" value="true" /> 
  41. <capability name="cookies" value="true" /> 
  42. <capability name="frames" value="true" /> 
  43. <capability name="javaapplets" value="true" /> 
  44. <capability name="supportsCallback" value="true" /> 
  45. <capability name="supportsFileUpload" value="true" /> 
  46. <capability name="supportsMultilineTextBoxDisplay" value="true" /> 
  47. <capability name="supportsMaintainScrollPositionOnPostback" value="true" /> 
  48. <capability name="supportsVCard" value="true" /> 
  49. <capability name="supportsXmlHttp" value="true" /> 
  50. <capability name="tables" value="true" /> 
  51. <capability name="supportsAccessKeyAttribute" value="true" /> 
  52. <capability name="tagwriter" value="System.Web.UI.HtmlTextWriter" /> 
  53. <capability name="vbscript" value="true" /> 
  54. </capabilities> 
  55. </browser> 
  56. </browsers>  
<browsers>
<browser id="IE11" parentID="Mozilla">
<identification>
<userAgent match="Trident/7.0; rv:(?'version'(?'major'd+)(.(?'minor'd+)?)(?'letters'w*))(?'extra'[^)]*)" />
<userAgent nonMatch="IEMobile" />
</identification>
<capture>
<userAgent match="Trident/(?'layoutVersion'd+)" />
</capture>
 <capabilities>
 <capability name="browser" value="IE" />
 <capability name="layoutEngine" value="Trident" />
 <capability name="layoutEngineVersion" value="${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>

另外，用VS打开网站，打开“程序包管理器控制台”，输入install-package App_BrowsersUpdate安装更新也可以

例如：

PM> install-package App_BrowsersUpdate 正在安装“App_BrowsersUpdate 1.0”。

已成功安装“App_BrowsersUpdate 1.0”。

正在将“App_BrowsersUpdate 1.0”添加到 myWebsite。

已成功将“App_BrowsersUpdate 1.0”添加到 myWebsite。

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原文地址：https://www.cnblogs.com/yangning/p/4325240.html