Disable Postback for Linkbutton - asp.net

Question

Im using ASP.NET LinkButton.
I have a LinkButton which calls code behind from onclick:
on aspx:
<asp:LinkButton ID="LinkTest" runat="server" onclick="LinkTest_Click" OnClientClick="return false;" >LinkButton</asp:LinkButton>
on aspx.cs:
protected void LinkTest_Click(object sender, EventArgs e)
{
//code here
}
As you can see I have set OnClientClick="return false;" so that it wont do a postback.
The postback does not happens. But the code behind is not fired.
I want the code behind to fire and I want no postback when the linkbutton is clicked.
How can I do this?
Thanks.

Answer 1

Remove the OnclientClick attribute of the linkbutton. Try using an UpdatePanel like:
<asp:UpdatePanel ID="up1" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="LinkTest" EventName="Click" />
</Triggers>
<ContentTemplate>
<asp:label id="Label1" runat="server" Text="Initial Label" />
</ContentTemplate>
</asp:UpdatePanel>
Also, you will need to add a ScriptManager in your page.

Answer 2

Add the linkbutton inside updatepanel,
remove onclientclick attribute of the linkbutton:
Page:
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Label ID="lblName" runat="server" Text="Old Value"></asp:Label>
<br />
<asp:LinkButton ID="lnkbtChange" runat="server" OnClick="lnkbtChange_Click">Change</asp:LinkButton>
</ContentTemplate>
</asp:UpdatePanel>
CodeBehind:
protected void lnkbtChange_Click(object sender, EventArgs e)
{
lblName.Text = "New value";
}