c# Deep copy objects

Hi, I am trying to deep copy a complex object. Below is code for same. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Reflection; namespace DDKOnline.Common { /// /// Utility /// public static class DeepCopyUtility { /// /// Copies the data of one object to another. The target object gets properties of the first. /// Any matching properties (by name) are written to the target. /// /// The source object to copy from/// The target object to copy topublic static void CopyObjectData(object source, object target) { CopyObjectData(source, target, String.Empty, BindingFlags.Public | BindingFlags.Instance); } /// /// Copies the data of one object to another. The target object gets properties of the first. /// Any matching properties (by name) are written to the target. /// /// The source object to copy from/// The target object to copy to/// A comma delimited list of properties that should not be copied/// Reflection binding accesspublic static void CopyObjectData(object source, object target, string excludedProperties, BindingFlags memberAccess) { string[] excluded = null; if (!string.IsNullOrEmpty(excludedProperties)) { excluded = excludedProperties.Split(new char[1] { ',' }, StringSplitOptions.RemoveEmptyEntries); } MemberInfo[] miT = target.GetType().GetMembers(memberAccess); foreach (MemberInfo Field in miT) { string name = Field.Name; // Skip over excluded properties if (string.IsNullOrEmpty(excludedProperties) == false && excluded.Contains(name)) { continue; } if (Field.MemberType == MemberTypes.Field) { FieldInfo sourcefield = source.GetType().GetField(name); if (sourcefield == null) { continue; } object SourceValue = sourcefield.GetValue(source); ((FieldInfo)Field).SetValue(target, SourceValue); } else if (Field.MemberType == MemberTypes.Property) { PropertyInfo piTarget = Field as PropertyInfo; PropertyInfo sourceField = source.GetType().GetProperty(name, memberAccess); if (sourceField == null) { continue; } if (piTarget.CanWrite && sourceField.CanRead) { object targetValue = piTarget.GetValue(target, null); object sourceValue = sourceField.GetValue(source, null); if (sourceValue == null) { continue; } if (sourceField.PropertyType.IsArray && piTarget.PropertyType.IsArray && sourceValue != null) { CopyArray(source, target, memberAccess, piTarget, sourceField, sourceValue); } else { CopySingleData(source, target, memberAccess, piTarget, sourceField, targetValue, sourceValue); } } } } } private static void CopySingleData(object source, object target, BindingFlags memberAccess, PropertyInfo piTarget, PropertyInfo sourceField, object targetValue, object sourceValue) { //instantiate target if needed if (targetValue == null && piTarget.PropertyType.IsValueType == false && piTarget.PropertyType != typeof(string)) { if (piTarget.PropertyType.IsArray) { targetValue = Activator.CreateInstance(piTarget.PropertyType.GetElementType()); } else { targetValue = Activator.CreateInstance(piTarget.PropertyType); } } if (piTarget.PropertyType.IsValueType == false && piTarget.PropertyType != typeof(string)) { CopyObjectData(sourceValue, targetValue, "", memberAccess); piTarget.SetValue(target, targetValue, null); } else { if (piTarget.PropertyType.FullName == sourceField.PropertyType.FullName) { object tempSourceValue = sourceField.GetValue(source, null); piTarget.SetValue(target, tempSourceValue, null); } else { CopyObjectData(piTarget, target, "", memberAccess); } } } private static void CopyArray(object source, object target, BindingFlags memberAccess, PropertyInfo piTarget, PropertyInfo sourceField, object sourceValue) { int sourceLength = (int)sourceValue.GetType().InvokeMember("Length", BindingFlags.GetProperty, null, sourceValue, null); Array targetArray = Array.CreateInstance(piTarget.PropertyType.GetElementType(), sourceLength); Array array = (Array)sourceField.GetValue(source, null); for (int i = 0; i < array.Length; i++) { object o = array.GetValue(i); object tempTarget = Activator.CreateInstance(piTarget.PropertyType.GetElementType()); CopyObjectData(o, tempTarget, "", memberAccess); targetArray.SetValue(tempTarget, i); } piTarget.SetValue(target, targetArray, null); } } } I want to add list copy also to this code something on below lines. if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(List<>)) { if (typeof(IList).IsAssignableFrom(type)) { var collection = (IList)Activator.CreateInstance(type); cloned[source] = collection; foreach (var element in source as IEnumerable) { collection.Add(CloneProcedure(element, cloned)); } return collection; } else if (type.IsGenericType) { var objectType = type.GetGenericArguments().Single(); if (typeof(IList<>).MakeGenericType(objectType).IsAssignableFrom(type) || typeof(ISet<>).MakeGenericType(objectType).IsAssignableFrom(type)) { var collection = Activator.CreateInstance(type); cloned[source] = collection; var addMethod = collection.GetType().GetMethod("Add"); foreach (var element in source as IEnumerable) { addMethod.Invoke(collection, new[] { CloneProcedure(element, cloned) }); } return collection; } } return source; } But each time I get "Parameter out of bounds" can someone help me with this. Reference: https://ddkonline.blogspot.com/2010/04/net-deep-copy-between-2-different.html?_sm_au_=iVV8TZZ5L71MRvZf https://stackoverflow.com/a/2266441/4583547

Started by Kavya Shetty at November 17, 2017 - 2:44 AM