otp auth in asp.net

Accepted answer

you need to put your each method inside session or use session inside Page Load event ,

when you are validating the OTP put a flag like isValidated inside session and use it later in each page

protected void Page_Load(object sender, EventArgs e)
{
if (Session["IsValidated"] == null ||Session["IsValidated"].ToString() !="True")
Response.Redirect("FrmLogin.aspx");
else
{
// other code
}
}

+2

yes, you need to use session on each page like this now

+2

private void Otp()

{

Random rn = new Random();

Session["rNumber"] = rn.Next(111111, 999999);

txtotp.Text = Session["rNumber"].ToString();

}

i implement this way,is that correct

+2

please refer below URL

https://www.c-sharpcorner.com/blogs/send-otp-sms-to-user-mobile-using-c-sharp

https://www.enjoysharepoint.com/generate-otp-asp-net/

+2