How to calculate value with regular expression using C#.NET 2,0 Ex: (A+B) *C

How to calculate value with regular expression using C#.NET 2,0

Some time it require to calculate value with expression
For example if i write (A+B)*C in the textbox, i want some function calculate this value with formula.

For this purpose you can use two DLLs 1) Microsoft.JScript.dll and 2) Microsoft.Vsa.dll

This is available in (Visual Studio 2005 DOTNET version 2.0)

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\ folder.

Namespace
using Microsoft.JScript;
using Microsoft.JScript.Vsa;
using Microsoft.Vsa;

Variable
private static VsaEngine engine = VsaEngine.CreateEngine();

Source Code
public static object Eval(string Expression)
{
try
{
return Microsoft.JScript.Eval.JScriptEvaluate(Expression, engine);
}
catch (Exception x)
{
return "ERROR! " + Expression + x.Message;
}
}

How to Call this function

string val = "10*20+(20-8)"
Eval(val); // this will give result --> 212

val = "(10*20)+(20-8)*9-(90/40)"
Eval(val); // this will give result --> 305.75