C# 對象比較(實值型別、參考型別)

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        #region 引用對象比較        /// <summary>        /// 引用對象比較        /// </summary>        /// <param name="objA"></param>        /// <param name="objB"></param>        /// <returns></returns>        public static bool CompareObject(object objA, object objB)        {            bool flag = false;            if (objA == null || objB == null)            {                flag = false;            }            else if (objA == DBNull.Value && objB != DBNull.Value)            {                flag = false;            }            else if (objA != DBNull.Value && objB == DBNull.Value)            {                flag = false;            }            else if (objA == DBNull.Value && objB == DBNull.Value)            {                //objA objB 對應的列類型已經比較過 類型已判斷 值一致                flag = true;            }            else if (objA.GetType() != objB.GetType())            {                flag = false;            }            else if (objA is int || objA is short || objA is long || objA is float || objA is double || objA is decimal)            {                //int 01與1                      if (objA is int)                {                    if ((int)objA == (int)objB)                    {                        flag = true;                    }                }                else if (objA is short)                {                    if ((short)objA == (short)objB)                    {                        flag = true;                    }                }                else if (objA is long)                {                    if ((long)objA == (long)objB)                    {                        flag = true;                    }                }                else if (objA is float)                {                    if ((float)objA == (float)objB)                    {                        flag = true;                    }                }                else if (objA is double)                {                    if ((double)objA == (double)objB)                    {                        flag = true;                    }                }                else if (objA is decimal)                {                    if ((decimal)objA == (decimal)objB)                    {                        flag = true;                    }                }            }            else            {                string strA = MetadataXmlSerializer<object>.ToXMLString(objA);                string strB = MetadataXmlSerializer<object>.ToXMLString(objB);                if (strA == strB)                {                    flag = true;                }            }            return flag;        }        #endregion



小註:

如果傳入的兩個值是dataRow中儲存格的值,請先比較類型,類型一致再調用該方法

深拷貝部分代碼:

C# 實體類序列化與還原序列化一 (XmlSerializer)

C# 實體類序列化與還原序列化二 (DataContractSerializer)

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