如何避免在点击链接按钮时在asp.net中刷新整个页面

<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">Click Me</asp:LinkButton>
        <asp:Label ID="Label1" runat="server" Text="Initial Text"></asp:Label>
    </ContentTemplate>
</asp:UpdatePanel>

protected void LinkButton1_Click(object sender, EventArgs e)
{
    Label1.Text = "Updated Text";
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script type="text/javascript">
    $(document).ready(function () {
        $("#LinkButton1").click(function () {
            $.ajax({
                type: "POST",
                url: "YourPage.aspx/UpdateLabel",
                data: "{}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (response) {
                    $("#Label1").text(response.d);
                },
                failure: function (response) {
                    alert(response.d);
                }
            });
        });
    });
</script>

<asp:LinkButton ID="LinkButton1" runat="server">Click Me</asp:LinkButton>
<asp:Label ID="Label1" runat="server" Text="Initial Text"></asp:Label>

[System.Web.Services.WebMethod]
public static string UpdateLabel()
{
    return "Updated Text";
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script type="text/javascript">
    $(document).ready(function () {
        $("#LinkButton1").click(function () {
            $.ajax({
                type: "GET",
                url: '@Url.Action("UpdateLabel", "YourController")',
                success: function (data) {
                    $("#Label1").text(data);
                }
            });
        });
    });
</script>

<a id="LinkButton1" href="#">Click Me</a>
<span id="Label1">Initial Text</span>

public class YourController : Controller
{
    public ActionResult UpdateLabel()
    {
        return Json("Updated Text", JsonRequestBehavior.AllowGet);
    }
}