There was a question asked on www.asp.net forums that how can we give only 3 tries to user login. A good way is to use Database so that we can log user attempts. But if you want just a quick solution you can always use ViewState.
Here is a simple code that checks for the username and if all three attempts fails than print a friendly message.
string userName = txtUserName.Text;
// check the viewstate
if(ViewState["Attempts"] != null)
{
if( ( (int) (ViewState["Attempts"]) ) != 3 )
{
// You should get the name from the DataSource.
if(userName.Equals("AzamSharp"))
{
Response.Write("Welcome AzamSharp");
}
PrintAttempts();
}
else
{
Response.Write("Sorry no more attempts. Please contact Administrator.");
}
}
else
{
PrintAttempts();
}
private void PrintAttempts()
{
ViewState["Attempts"] = Convert.ToInt32(ViewState["Attempts"] ) + 1;
Response.Write("Attempts:"+ ViewState["Attempts"].ToString() );
}