Button click event not firing in second click

Question

Hello All,

 

I have a issue in my asp.net project.

 

In button click event, the first button click in doing task to update records and the same function not fire when I click the same button for the second time. I did tested with putting breakpoint in Page_Load event. Not trigger this event also.

<asp:Button ID="btnUpdate" type="submit" runat="server" Text="Update" OnClick="btnUpdate_Click" />

protected void btnUpdate_Click(object sender, EventArgs e)
{
// This event not firing in second time button click
try
{
if (tbxCustomerID.Text != "" && ViewState["hasLoadedCustomerDetails"] != null)
{
UpdateLoanStatus();
}
}
catch (Exception ex)
{
ex.Message.ToString();
}
}

There are other button which is firing in multiple time without round trip.

 

I need your help on why this happen..