/// <summary> /// 复制数据 /// </summary> /// <typeparam name="T">实体类型</typeparam> /// <typeparam name="K">拥有索引器的实体类型</typeparam> /// <typeparam name="P">索引器参数类型,例:int</typeparam> /// <typeparam name="R">索引器返回类型,例:string</typeparam> /// <param name="originalData">原实体数据</param> /// <param name="propertyMatchList">属性匹配,例:new { ID = "UserID" }</param> /// <param name="reflectionType">反射类型</param> /// <returns></returns> public static T Copy <T, K, P, R>(K originalData, object propertyMatchList = null, ReflectionTypeEnum reflectionType = ReflectionTypeEnum.Expression) where T : class, new() where K : class { T t = ReflectionGenericHelper.New <T>(); Func <K, P, object> indexCall = ReflectionGenericHelper.PropertyIndexGetCall <K, P, R>(reflectionType); Dictionary <PropertyInfo, string> propertyMatchDict = InitPropertyMatchMapper(originalData.GetType(), typeof(T), propertyMatchList, null); foreach (var keyValueItem in propertyMatchDict) { P indexName = (P)Convert.ChangeType(keyValueItem.Value, typeof(P), CultureInfo.InvariantCulture); ReflectionHelper.SetPropertyValue(t, indexCall(originalData, indexName).ToString(), keyValueItem.Key); } return(t); }