winforms - C# - Menu Strip Duplicating for no Apparent Reason -

i'm creating windows form based multi tap (old phone keypad) type system, using timers , arrays. however, whenever click button append text text box, menu strips duplicates vertically, have no idea why seem have note referenced menu string in cs. code isn't finished, i'd stop duplication happening, , character array append rich text box. @ appreciated, thanks!

using system; using system.collections.generic; using system.componentmodel; using system.data; using system.drawing; using system.linq; using system.text; using system.windows.forms;      namespace mini_keyboard     {         public partial class minikeyboard : form         {             public minikeyboard()             {                 initializecomponent();             }              string currentmode = "multi tap"; // sets mode of app on startup "multi tap"             int intintervalrequired = 1000; // time interval in user has switch through characters             string currentkey;             string prevkey;             int currentindex = -1;             string[] keypad1 = new string[7] { ".", "~", "\"", "1", "'", ":", ";" }; // characters key 1             string[] keypad2 = new string[7] { "a", "b", "c", "2", "a", "b", "c" }; // characters key 2             string[] keypad3 = new string[7] { "d", "e", "f", "3", "d", "e", "f" }; // characters key 3             string[] keypad4 = new string[7] { "g", "h", "i", "4", "g", "h", "i;" }; // characters key 4             string[] keypad5 = new string[7] { "j", "k", "l", "5", "j", "k", "l" }; // characters key 5             string[] keypad6 = new string[7] { "m", "n", "o", "6", "m", "n", "o" }; // characters key 6             string[] keypad7 = new string[9] { "p", "q", "r", "s", "7", "p", "q", "r", "s" }; // characters key 7             string[] keypad8 = new string[7] { "t", "u", "v", "8", "t", "u", "v" }; // characters key 8             string[] keypad9 = new string[9] { "w", "x", "y", "z", "9", "w", "x", "y", "z" }; // characters key 9             string[] keypad0 = new string[2] { "0", " " }; // characters key 0             string[] keypadstar = new string[3] { "*", "-", "_" }; // characters key star             string[] keypadhash = new string[3] { "#", "-", "_" }; // characters key hash             timer timer = new timer();             public void runtimer()             {                 initializecomponent();                  timer.tick += new eventhandler(stoptimer);                 timer.interval = intintervalrequired;                 timer.enabled = true;                 timer.start();             }              public void stoptimer(object sender, eventargs e)             {                 timer.stop();                 prevkey = currentkey;                 currentkey = "";                 currentindex = -1;             }              private void btnchangemode_click(object sender, eventargs e)             {                 if (currentmode == "multi tap") // if current mode "multi tap", change "prediction"                 {                     currentmode = "prediction";                     txtcurrentmode.text = currentmode;                 }                 else // if current mode "prediction", change "multi tap"                 {                     currentmode = "multi tap";                     txtcurrentmode.text = currentmode;                 }             }              private void btnkeypadno2_click(object sender, eventargs e)             {                 currentkey = "2";                 appendchar(ref keypad2);             }              public void appendchar(ref string[] key)             {                 runtimer();                 if (currentindex == -1)                 {                     currentindex++;                     rtbcurrentstring.appendtext(key[currentindex]);                 }             }         }     } 

this recode of form made before had same bug, decided start scratch fix it, didn't.

here's link screencap of problem:

update: turns out mode button no longer working, , fine before happened.

remove initializecomponent(); in runtimer. should called once in constructor.

your current flow is:

appendchar -> runtimer -> initializecomponent