IE upgrade code when the message content

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

However, you can go to add page, fill out the information, submit to the error page, (Unknown system error)

Reference Solutions:

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

The end result is that the name is replaced with an 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

  Resolution: Document.getelementsbyname ("StartDate"). Value! = ' && document.getelementsbyname ("EndDate"). Value! = ';

The following should be added subscript, such as Getelementsbyname ("") [0].value;

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

Solution: document.getelementbyid.iframe1.style.display= ' none ';

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

Resolution: Document.form1.birthdaystr.disabled= true;

PS. <form name= "Form1"

• document.getElementById () that existed before the upgrade in the system, some of which are not supported in IE11

1 IF:          2      Form1.actionType.value = "SearchResult"; 3 Then : 4      var Form1 = Document.getelementsbyname ("form1") [0]; 5  Other points Similar  

• The function in the onclick () is reported _submitquery is undefined

1 function _submitquery () {2  if (! _checkquery ()) {3  alert ("-----");    4 }       5     return6 }

Cause: One of the getelementsbyname in _checkquery () is labeled [], without adding 0;

• Report function expected

Cause: IE11 does not support the "Document.frames (" pendingactivities ") usage.

function Dorediary () {var radios=doucment.frames ("Pendingactivities"). Document.getelemntsbyname (" Selectedactivities ");}

To be replaced by:

function Dorediary () {var radios=doucment.frames["pendingactivities"].document.getelemntsbyname (" Selectedactivities ");}

Technical Source: blog.sina.com.cn/s/blog_74924f2401017t0a.html

• No

continuous updating;

IE upgrade code when the message content