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Categories / C# / Data Types

 

Is it a double number

using System; using System.Data; using System.Text.RegularExpressions; class Class1{         static void Main(string[] args){       string IsNotNum = "111west";       string IsNum = "  +111  ";       string IsFloat = "  23.11  ";       string IsExp = "  +23 e+11  ";              Console.WriteLine(IsNumericFromTryParse(IsNum));    // True       Console.WriteLine(IsNumericFromTryParse(IsNotNum));    // False       Console.WriteLine(IsNumericFromTryParse(IsFloat));    // True       Console.WriteLine(IsNumericFromTryParse(IsExp));    // False         }     public static bool IsNumericFromTryParse(string str)     {       double result = 0;       return (double.TryParse(str, System.Globalization.NumberStyles.Float, System.Globalization.NumberFormatInfo.CurrentInfo, out result));     } }