Convert from a string of expression into a float result in C#

Anyone can help me for this problem , In Visual fox pro 9.0 , you can do very easily by using : &
For example :  you have a string : x= " (2*3+2*(2-8))"
and what you do is  : y=&x (=-6 as the result from x) .
But i do not know what I should do in c#.net , it is very difficult .
 

Thanks for your reply , the string 10*2 above is only a simply example for describing my idea , my problem is :
I have a complex string with equators like +,-,*,/ and others like "(",")" in an expression .
For example : (10*2)+((8*6-9*5+3*2)*(72*7/2)) .
Hope for your help soon . it is urgent for me . Thanks much. ( Sorry if i give the very simple in the original question )

Hi

String str="10*2";

string [] spl=str.Split(*);

float a=Convert.ToFloat(spl[0]);
float b=Convert.ToFloat(spl[1]);
float result=a * b;