String文字列が数値かどうか判定する方法

String文字列が数値かどうか判定する方法
VB.NET

    ''' <summary>

    ''' String文字列が数値かどうか判定する方法

    ''' </summary>

    ''' <param name="strValue"></param>

    ''' <returns></returns>

    Public Shared Function IsNumeric(strValue As String) As Boolean

        Dim dblVal As Double

        Return Double.TryParse(strValue, System.Globalization.NumberStyles.Any, Nothing, dblVal)

    End Function

C#

        /// <summary>

        /// String文字列が数値かどうか判定する方法

        /// </summary>

        /// <param name="strValue"></param>

        /// <returns></returns>

        public static bool IsNumeric(string strValue)

        {

            double dblVal;

            return double.TryParse(

                strValue,

                System.Globalization.NumberStyles.Any,

                null,

                out dblVal

            );

        }