Asp .net How to check if a string is numeric

This is the code I wrote to check if the string is numeric else it puts another value


            Dim strCapAmount = ddlCapAmount.Text
            Dim itemp As Integer
            If Integer.TryParse(strCapAmount, itemp) Then
            Else
                strCapAmount = 10000000
            End If



Here's the full example i found on the net
--------------------------------------------------------------

string numeric = "12345";
string nonNumeric = "abcde";
int value;

if (int.TryParse(numeric, out value))
{
    Console.WriteLine("Value: {0}", value);
}
else
{
    Console.WriteLine("Conversion failed.");
}

if (int.TryParse(nonNumeric, out value))
{
    Console.WriteLine("Value: {0}", value);
}
else
{
    Console.WriteLine("Conversion failed.");
}

/* OUTPUT

Value: 12345
Conversion Failed.

*/

Alternate code

public bool isNumeric
    (string val, System.Globalization.NumberStyles NumberStyle, string CultureName)
{
    Double result;
    return Double.TryParse(val,NumberStyle,new System.Globalization.CultureInfo
				(CultureName),out result);
}

call the code to check if integer

isNumeric("42000", System.Globalization.NumberStyles.Integer)