如何使用HTML onchange事件清除标签 [英] How to clear label using HTML onchange event

问题描述

我的代码如下

My code as follows

< input type =textid =EmpidPlaceholder =你好runat =server>

<input type = "text" id="Empid" Placeholder = "Hello" runat="server">

< asp：label id =lblmsgrunat =服务器>





在我的跑步模式中如下





您好（输入类型）



lblmsg数据不匹配



当我输入输入类型中的文本，我想清除数据不匹配的lblmsg文本。





我该怎么办asp.net



我的尝试：



如何更改使用html更改事件的标签

<asp:label id="lblmsg" runat="server">


In my run mode as follows


Hello (Input type)

lblmsg The data does not match

When i type the text in Input type, i want to clear the lblmsg text the data does not match.


for that how can i do in asp.net

What I have tried:

how to change the label using html change event

推荐答案

<input type = "text" onkeydown='changeValue()' id="Empid" Placeholder = "Hello" runat="server">

<asp:label id="lblmsg" runat="server"> 

在Head Tag中写下以下代码

write following code in Head Tag

<script>
function changeValue(){
document.getElementById('lblmsg').innerHTML=""

}
</script>

<input type="text" id="Empid" placeholder="Hello" onchange="funChange()" runat="server" />
     <asp:Label ID="lblmsg" runat="server"></asp:Label>

<script>

       function funChange()
       {
           // write your logic here
           document.getElementById('<%= lblmsg.ClientID%>').innerText = '';
       }
   </script>

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