[Solved] Ajax Timer not Updating Label in ASP.Net

Hi akhter,

You have not set the OnTick event for Timer control.

Check the below code.

HTML

<asp:ScriptManager runat="server" />
<asp:UpdatePanel ID="Panel1" runat="server" UpdateMode="Conditional">
    <ContentTemplate>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        <asp:Label ID="lbitemtotal" runat="server" Font-Bold="True" Font-Size="75pt" ForeColor="#FF3300"
            Text="." Width="108px" Height="98px"></asp:Label>
    </ContentTemplate>
    <Triggers>
        <asp:AsyncPostBackTrigger ControlID="Timer1" />
    </Triggers>
</asp:UpdatePanel>
<asp:Timer ID="Timer1" runat="server" Interval="1000" OnTick="GetTime">
</asp:Timer>

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        lbitemtotal.Text = DateTime.Now.ToString("hh:mm:ss tt");
    }
}

protected void GetTime(object sender, EventArgs e)
{
    lbitemtotal.Text = DateTime.Now.ToString("hh:mm:ss tt");
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        lbitemtotal.Text = DateTime.Now.ToString("hh:mm:ss tt")
    End If
End Sub

Protected Sub GetTime(ByVal sender As Object, ByVal e As EventArgs)
    lbitemtotal.Text = DateTime.Now.ToString("hh:mm:ss tt")
End Sub

Screenshot