RMS.Common/Tools/ObjectExtension.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RMS.Common.Tools
{
    public static class ObjectExtension
    {
        /// <summary>
        /// 对象是空
        /// </summary>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static bool IsNull(this object obj)
        {
            return obj == null;
        }

        /// <summary>
        /// 对象不为空
        /// </summary>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static bool IsNotNull(this object obj)
        {
            return obj != null;
        }
        /// <summary>
        /// 如果对象是null返回null否则做字符串转换
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public static string TryToString(this object input)
        {
            return input.IsNull() ? null : input.ToString();
        }
    }
}