c# - How to close the form after 3 unsuccessful tries? -

i have login form password only. want login form closed if user enters password wrong 3 times.

i declare variable in class body:

int loginattempts = 0; 

when login wrong use:

loginattempts++; 

in login button enter event use:

private void login_bt_enter(object sender, eventargs e) {      if (loginattempts == 3)      {          login logf = new login();          logf.close();      } } 

this not seem working. doing wrong?

you closing logf instance create , don't show. think need close current form:

login_bt_enter(object sender, eventargs e) {     if (loginattempts == 3)                     close(); // close current form             }