HTML的选择元素 [英] select element of HTML

问题描述

大家好

我想禁用onselectedindex上的一个下拉菜单中的"select"元素..如何在C#中编写代码或jAVASCRIPT ??

解决方案

不想让用户从下拉菜单中选择项目，只需禁用它即可.

尝试

 <  脚本   类型  ="  > 
函数makeDisable(){
    var x = document.getElementById("mySelect")
    x.disabled = true
} 

要获取更多参考并获得实际影响，请访问那里-[禁用并启用下拉列表] [ ^ ] onchange上调用以下函数

 功能 disabledME()
{
  如果(文档 .getElementById("  Select1").value ==  此")
    文档 .getElementById(" ) .disabled =  true ;
} 

上面的代码将禁用您对所选索引进行更改的select元素.

Hi All

I want to disable ''select'' element,on Onselectedindexchanged of a dropdown..how to write a code in C# OR jAVASCRIPT??

解决方案

If you don''t want the user to select items from within a dropdown, just disable it.

Try

<script type="text/javascript">
function makeDisable(){
    var x=document.getElementById("mySelect")
    x.disabled=true
}

for more reference and getting practical influence have a go there-[Disable and enable a dropdown list][^]

you can write Javascript. call following function on onchange of select element

function disabledME()
{
  if(document.getElementById("Select1").value == "this")
    document.getElementById("Select1").disabled = true;
}

above code will disabled your select element on selected index changed.

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