string to decimal conversion

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C#

How to convert a string to decimal when the string contains an arithmetic expression?

Such as,

string str ="((1024+34)-(8*56)";

Please suggest




The convert.todecimal won't work because of the presence of parenthesis(,)
Ex:-
string str = ((((@accijns+@ecotax)/100) * @unit) +@fostplus)
I am replacing @accijns, etc by property value

below is my code

string strFormula = oPriceType.formula;
//(formula is like ((((@accijns+@ecotax)/100) * @unit) +@fostplus)
string strCalculation = strFormula.Replace("@accijns", accijnValue.ToString()).Replace("@fostplus", fostplusValue.ToString()).Replace("@cost_price", @cost_price.ToString())
.Replace("@cost_extra", @cost_extra.ToString()).Replace("@cost_fob", @cost_fob.ToString()).Replace("@cost_ship", @cost_ship.ToString()).Replace("@cost_warehouse", @cost_warehouse.ToString())
.Replace("@ecotax", ecotaxValue.ToString()).Replace("@unit", @unit.ToString()).Replace("@discount_extra", @discount_extra.ToString()).Replace("@discount_payterm", @discount_payterm.ToString())
.Replace("@discount_financial", @discount_financial.ToString()).Replace("@weight", @weight.ToString()).Replace("@import_duty", @import_duty.ToString()).Replace("@degree", @degree.ToString())
.Replace("@recom_price", @recom_price.ToString());

have you got the idea now??
please suggest
thank you
sandeep