c# 反射實現模型深拷貝
阿新 • • 發佈:2018-10-19
mode per typeof dict 類型 spa ear clone get
1.支持屬性,不支持字段,支持復雜類型屬性
2.泛型集合類支持List<T>與Dictionary<TKey,TValue>
3.如果發現有什麽問題,希望大家可以多多指教
/// <summary> /// 模型深拷貝 /// </summary> /// <param name="model"></param> /// <returns></returns> public static object Clone(this object model) {var modelType = model.GetType(); if (modelType.IsValueType) { return model; } if (modelType.Name == typeof(List<>).Name) { var genericType = modelType.GenericTypeArguments; var newObj = Activator.CreateInstance(genericType.FirstOrDefault());var newList = (IList)Activator.CreateInstance(modelType); foreach (var itemObj in (IList)model) { newList.Add(itemObj.Clone()); } return newList; } if (modelType.Name == typeof(Dictionary<,>).Name) {var genericType = modelType.GenericTypeArguments; var newkey = Activator.CreateInstance(genericType[0]); var newValue = Activator.CreateInstance(genericType[1]); var newDic = (IDictionary)Activator.CreateInstance(modelType); var modelDic = (IDictionary)model; foreach (var itemkey in (modelDic.Keys)) { newDic.Add(itemkey.Clone(), modelDic[itemkey].Clone()); } return newDic; } var pros = modelType.GetProperties(); var newModel = Activator.CreateInstance(modelType, true); var newModelType = newModel.GetType(); var newpros = newModelType.GetProperties(); foreach (var pro in pros) { var newPro = newpros.FirstOrDefault(u => u.Name == pro.Name); if (pro.PropertyType.IsValueType || pro.PropertyType == typeof(string)) { var value = pro.GetValue(model); newPro.SetValue(newModel, value); } else { var value = pro.GetValue(model); var actobj = Activator.CreateInstance(newPro.PropertyType, true); newPro.SetValue(newModel, value.Clone()); } } return newModel; }
c# 反射實現模型深拷貝