Rumah >pembangunan bahagian belakang >Tutorial C#.Net >C# 对象比较(值类型、引用类型)
<pre class="csharp"><pre class="csharp"> #region 引用对象比较 /// <summary> /// 引用对象比较 /// </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 对应的列类型已经比较过 类型已判断 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与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
小注:
如果传入的两个值是dataRow中单元格的值,请先比较类型,类型一致再调用该方法
深拷贝部分代码:
C# 实体类序列化与反序列化一 (XmlSerializer)
C# 实体类序列化与反序列化二 (DataContractSerializer)
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