how set startposition windows forms form controlling code?

is there proceed set startposition windows forms form controlling code? seems whatever i try law startpostion being default.

here i am doing form display:

    open dealsform()
    {
        initializecomponent();
        this.startposition = formstartposition.centerparent;
    }

here i am doing arrangement form:

    private vacant nvshowdeals_linkclicked(object sender, linklabellinkclickedeventargs e)
    {
        dealsform frm = new dealsform();

        frm.datasource = this.deals;

        frm.show(this);
    }

i have attempted putting following any above methods, avail:

this.startposition = formstartposition.centerparent;

if i set around ability editor ... works perfectly, nonetheless i really around code.

should no-brainer ... nonetheless life me i can't seem figure out ... maybe i need some-more caffeine.

update:

if i showdialog() pass progenitor works ... nonetheless i unequivocally don't wish arrangement dialog.