• IE升级代码时邮件内容


    • TypeErrorUnable to set property 'value' of undefined or null reference.

                    但是可以进入添加页面,填完信息后,submit后跳转至 错误页面,(Unknown system error)

                    参考解决方案:

                 http://stackoverflow.com/questions/21775185/error-unable-to-set-property-value-of-undefined-or-null-reference

                 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError

      最终是因为:替换之后name要换成id.

    1 <%--var hidden = document.createElement("<input type='hidden' name='<%=myid>'>");--%>
    2     var hidden=document.createElement("input");
    3     hidden.setAttribute("type","hidden");
    4     hidden.setAttribute("id","myid");
    5     obj.appendChild(hidden);
    • Unable to get property 'substring' of undefined or null reference

      解决:  document.getElementsByName("startDate").value != '' && document.getElementsByName("endDate").value != '';

             后面要加下标,如getElementsByName("")[0].value;

    • Unable to get property 'style' of undefined or null reference

       解决:document.getElementById.iframe1.style.display='none';

    • Unable to set property 'disabled' of undefined or null reference 

       解决:document.form1.birthDayStr.disabled= true;

                PS. <form name="form1"

    • 系统中在升级前就存在的document.getElementById(),某些在IE11中并不支持
    1  IF :         
    2      form1.actionType.value = "searchResult";
    3 THEN:
    4      var form1 = document.getElementsByName("form1")[0];
    5  Other points Similar  
    • onclick()内的函数报_submitQuery is undefined
    1 function _submitQuery(){
    2  if(!_checkQuery()){
    3  alert("-----");   
    4 }       
    5     return
    6 }

          原因:_checkQuery()内的一个getElementsByName的一个下标为[],未加0;

    • 报Function expected

      原因:IE11不支持【document.frames("pendingActivities")】用法。

    function doRediary(){
    var radios=doucment.frames("pendingActivities").document.getElemntsByName("selectedActivities");
    }
    

      替换为:

    function doRediary(){
    var radios=doucment.frames["pendingActivities"].document.getElemntsByName("selectedActivities");
    }
    

      技术来源:blog.sina.com.cn/s/blog_74924f2401017t0a.html

    •  dispatchEvent-onchange,onmousedown,onblur,onclick适应IE11写法。
     1 var event1 = document.createEvent('HTMLEvents');
     2  event1.initEvent("change", true, true);
     3  obj.dispatchEvent(event1);
     4 
     5  var event1 = document.createEvent("MouseEvents");  
     6   event1.initMouseEvent("mousedown", true, true, window,0, 0, 0, 0, 0, false, false, false, false, 0, null);  
     7   document.body.dispatchEvent(event1);    
     8 
     9 var evt2 = document.createEvent("MouseEvent");
    10  evt2.initMouseEvent("blur", true, true, window,0, 0, 0, 0, 0, false, false, false, false, 0, null);
    11  document.body.dispatchEvent(evt2);
    12 
    13 var evt2 = document.createEvent("MouseEvent");
    14  evt2.initMouseEvent("click", true, true, window,0, 0, 0, 0, 0, false, false, false, false, 0, null);
    15  document.body.dispatchEvent(evt2);
    • style属性

    不支持这种写法:

    1 style='display: "none"'

    支持下面写法:

    1 style="display: none"

    持续更新;

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  • 原文地址:https://www.cnblogs.com/hoaprox/p/4788313.html
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