Hi sathya2496,
Refer below code and accordingly to your database data check condition and open popup message.
HTML
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.9/jquery-ui.js" type="text/javascript"></script>
<link href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.9/themes/start/jquery-ui.css"
rel="stylesheet" type="text/css" />
<script type="text/javascript">
function OpenModal() {
$("#dialog").dialog({
autoOpen: true,
modal: true,
title: "Expiring",
buttons: {
Ok: function () {
$(this).dialog('close');
}
}
});
}
</script>
<div id="dialog" style="display: none;">
Your Product will expire in <span runat="server" id="date"></span>
</div>
Code
C#
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
// Database Datetime.
DateTime dbDate = new DateTime(2019, 07, 23);
if (dbDate.AddDays(3).ToString("dd/MM/yyyy HH:mm") == DateTime.Now.AddDays(1).ToString("dd/MM/yyyy HH:mm"))
{
date.InnerText = DateTime.Now.AddDays(1).Subtract(dbDate).Days + " days.";
ScriptManager.RegisterStartupScript(this, this.GetType(), "", "OpenModal();", true);
}
}
}
VB.Net
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)Handle Me.Load
If Not Me.IsPostBack Then
' Database Datetime.
Dim dbDate As DateTime = New DateTime(2019, 07, 23)
If dbDate.AddDays(3).ToString("dd/MM/yyyy HH:mm") = DateTime.Now.AddDays(1).ToString("dd/MM/yyyy HH:mm") Then
date.InnerText = DateTime.Now.AddDays(1).Subtract(dbDate).Days & " days."
ScriptManager.RegisterStartupScript(Me, Me.GetType(), "", "OpenModal();", True)
End If
End If
End Sub