在JavaScript中出现Sel位置错误 [英] Getting Error in Sel position in javascript

问题描述

我在javascript中遇到错误，因为"Microsoft JScript运行时错误:"options"为null或不是对象"
"

Hi,

I am getting error in javascript as "Microsoft JScript runtime error: ''options'' is null or not an object "

var sel = document.forms[0].elements("Emp").value;
alert(sel);
var pos = sel.selectedIndex; //'Displaying "undefined
alert(pos);
var optText = sel.options[pos].text; //"Error in 'options' is null or not an object "

有什么问题...?

附加:

what is the problem...?

ADDITION:

function ViewAllted() {
   if(document.forms[0].Emp.value!=''){

    //var sel = document.getElementById("Emp");

    var sel = document.forms[0].elements("Emp").value;    
    alert(sel);

     var strValue = sel.options[sel.selectedIndex].value;

        alert('Sselected Value is: ' + strValue + ' and Index is: ' + sel.selectedIndex);

        var optText = sel.options[strValue ].text;

        document.forms[0].EmpName.value = optText;    
   }

	document.forms[0].action="FORMEMP.aspx?M=V"	document.forms[0].submit();
   } else {

	alert("Select an Employee!")
   }
}

<input type="button"  onclick="Javascript: ViewAlloted()" value="View Existing Allocation" />

推荐答案

嗨 使用以下代码获取所选索引

Hi Use following code to Get Selected Index

var sel = document.getElementById("Emp");
var strValue = sel.options[sel.selectedIndex].value;
alert('Selected Value is: ' + strValue +' and Index is: ' + sel.selectedIndex);

谢谢，
Imdadhusen

Thanks,
Imdadhusen

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