Numeric or not

There is no IsNumeric() function in C#.  It is VB only.  You will have to write your own method to code an equivalent, as suggested above.

The following emulates the Val() function of VB.  It returns the numeric value of a string up to the first non-numeric character.  Otherwise it returns 0.  It works with positive or negative numbers and will accept a single decimal point.  However, you will probably prefer a bool method to emulate IsNumeric().

public static double Valcs(string snum)

{

double vnum = 0; int N;

snum = snum.Replace(" ", "");

N = snum.Length;

string[] anum = new string[N + 1];

for (int x = 1; x <= N; x++)

{

anum[x] = snum.Substring(0, x);

try

{

vnum = Convert.ToDouble(anum[x]);

}

catch

{

if(x != 0 && anum[x] != "-")

break;

}

}

return vnum;

}