document.getElementById（control）.value不能与IE8一起使用 [英] document.getElementById(control).value not working with IE8

问题描述

  var tagID = document.getElementByn（<％= ddlSectionHeaderID％>）.value; 
 var tagIndex = document.getElementById（<％= ddlSectionHeaderID％>）。selectedIndex; 
 var tagName = document.getElementById（<％= ddlSectionHeaderID％>）。children（tagIndex）.innerText; 
 var exportID = document.getElementById（<％= hdnExportID％>）.value; 
  

这给了我对象不支持这个属性

解决方案

这将有助于查看呈现的输出以及在呈现的脚本中产生了哪些引用。

对象不支持此属性错误意味着您正试图访问该对象不存在的属性。也许当这个脚本被渲染时，你认为应该是一个select元素实际上是一个文本输入。如果是这样的话，selectedIndex属性将不存在（这只是一种可能性 - 如果你能看到结果字符串，你将会知道更多）。

var tagID = document.getElementByn("<%=ddlSectionHeaderID%>").value;
var tagIndex = document.getElementById("<%=ddlSectionHeaderID%>").selectedIndex;
var tagName = document.getElementById("<%=ddlSectionHeaderID%>").children(tagIndex).innerText;
var exportID = document.getElementById("<%=hdnExportID%>").value;

This gives me "Object doesn't support this property"

解决方案

It would help to see the rendered output and what references resulted in the rendered script.

The "Object doesn't support this property" error means that you are trying to access a property that does not exist for that object. perhaps when this script is rendered, what you think should be a select element is actually a text input. If that is the case, the selectedIndex property wont exist (this is just one possibility - you will know more if you were able to see the resulting string).

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