c# - Close Main Form -

i developing simple app using c# windows forms. main form open form, dont want both forms. want when second form opens first form closes. since first form main using

    this.close(); 

after showing second form close both. used instead

    private void btnsubmit_click(object sender, eventargs e)     {          frmdata qs = new frmdata();          qs.show();          this.windowstate = formwindowstate.minimized;          this.showintaskbar = false;     }      private void frmdata_formclosed(object sender, formclosedeventargs e)     {         application.exit();     } 

i want know if there other way this.

any appreciated.

do not pass main form argument application.run:

application.enablevisualstyles(); application.setcompatibletextrenderingdefault(false);  mainform frmmain = new mainform(); frmmain.show();  application.run(); 

thus able close when showing form:

private void btnsubmit_click(object sender, eventargs e) {      frmdata qs = new frmdata();      qs.show();      this.close(); } 

to close application should use

application.exit();