Get value of TextBox if 1s elapsed after last change c# -

how can value of textbox 1seconde after last change .

i tried stopwatch , timerstamp time between 2 change don't know how value of textbox 1 seconde after.

thanks help!

edit:

   stopwatch timerbetweenwrite = new stopwatch();      private void textbox_textchanged(object sender, textchangedeventargs e)     {         timerbetweenwrite.stop();         // elapsed time timespan value.         timespan ts = timerbetweenwrite.elapsed;          if (search.text != null && ts.seconds >= 1)         {             //doing stuff         }         timerbetweenwrite.restart();    } 

but don't work want because need change textbox 1 seconde after last change. want run function 1 seconde after last change of textbox user can continue change textbox.

final edit:

that code work thank's help!

public partial class viewerpage : page {     system.timers.timer mytimer = new system.timers.timer(1000);     public viewerpage()     {          initializecomponent();          mytimer.elapsed += new elapsedeventhandler(mytimer_elapsed);     }      private void textbox_textchanged(object sender, textchangedeventargs e)     {         mytimer.stop(); //reset timer         mytimer.start(); //restart      }       private void mytimer_elapsed(object sender, elapsedeventargs e)      {          threadcontext.invokeonuithread(          delegate()          {              // doing stuff               mytimer.stop();           });      } }  public static class threadcontext {     public static void invokeonuithread(action action)     {         if (application.current.dispatcher.checkaccess())         {             action();          }          else          {              application.current.dispatcher.invoke(action);          }      }       public static void begininvokeonuithread(action action)      {          if (application.current.dispatcher.checkaccess())          {              action();          }          else          {              application.current.dispatcher.begininvoke(action);          }      } } 

timer mytimer = new timer(1000); mytimer.elapsed += mytimer_elapsed; private void textbox_textchanged(object sender, textchangedeventargs e) {     mytimer.stop(); //reset timer     mytimer.start(); //restart }  private void mytimer_elapsed(object sender, elapsedeventargs e) {     //do stuff } 

explanation: each time text changes, timer gets reset , started again. tick if it's enabled (aka not stopped textchanged event) second. if want tick once , stop, set autoreset property true.