Set server side text from javascript using form c#

Question

I have asp lable

<asp:Label ID="lbl_qustionID" runat="server" Text="1" />

I set lable text to 6 using javascript

<button onclick="replayFrom('6')">set label number to 6</button>

My script function is :

<script>
            function replayFrom(qustionId) {
                document.getElementById("<%=lbl_qustionID.ClientID%>").innerText = qustionId;                
            }
</script>

When I check lable text from c# code behind label text is "1" allways ! I'm using .NET 2.0 Classic and WebForms Thanks for suggesion

Answer 1

<button onclick="replayFrom('6')">set label number to 6</button>

This button tag refresh your page. First its change label when you click on button but after that it will refresh the Page.

I will recommend you please use input tag when you deal with javascript and when do not need to communicate with server

  <input type="button" onclick="replayFrom('6')" value="button"/>