#region 检查数字

        public bool IsNumeric(string value)

        {

            bool result;

            try

            {

                int x = int.Parse(value);

                result = true;

            }

            catch

            {

                result = false;

            }

            try

            {

                double x = double.Parse(value);

                result = true;

            }

            catch

            {

                result = false;

            }

            try

            {

                float x = float.Parse(value);

                result = true;

            }

            catch

            {

                result = false;

            }

            return result;

        }

        #endregion