how to print with space

hello all

how to print with space
//-----------------

e.Graphic.Drawstring(":"+ tbTotal.Text ,myfont,100,100);

//-----------------

I want the result like this  :

:  200.000

not like this

:200.000

Do I have to print with code
//--------------------------------
int aint=10;

e.Graphic.Drawstring(":",myfont,100,100);
e.Graphic.Drawstring(tbTotal.Text,myfont,100+aint,100);
//-----------------------------------

or is there any other way ?

thank you all
denny