在这种情况下，你有一个"object"的字典，object可以是(double, int，…或ComplexClass):

Dictionary<string, object> dictSrc { get; set; }

public class ComplexClass : ICloneable
{
    
    private Point3D ...;
    private Vector3D ....;
    [...]

    public object Clone()
    {
        ComplexClass clone = new ComplexClass();
        clone = (ComplexClass)this.MemberwiseClone();
        return clone;
    }

}


dictSrc["toto"] = new ComplexClass()
dictSrc["tata"] = 12.3
...

dictDest = dictSrc.ToDictionary(entry => entry.Key,
                                entry => ((entry.Value is ICloneable) ? (entry.Value as ICloneable).Clone() : entry.Value) );

在这种情况下，你有一个"object"的字典，object可以是(double, int，…或ComplexClass):

Dictionary<string, object> dictSrc { get; set; }

public class ComplexClass : ICloneable
{
    
    private Point3D ...;
    private Vector3D ....;
    [...]

    public object Clone()
    {
        ComplexClass clone = new ComplexClass();
        clone = (ComplexClass)this.MemberwiseClone();
        return clone;
    }

}


dictSrc["toto"] = new ComplexClass()
dictSrc["tata"] = 12.3
...

dictDest = dictSrc.ToDictionary(entry => entry.Key,
                                entry => ((entry.Value is ICloneable) ? (entry.Value as ICloneable).Clone() : entry.Value) );

如果键/值是ICloneable，试试这个:

    public static Dictionary<K,V> CloneDictionary<K,V>(Dictionary<K,V> dict) where K : ICloneable where V : ICloneable
    {
        Dictionary<K, V> newDict = null;

        if (dict != null)
        {
            // If the key and value are value types, just use copy constructor.
            if (((typeof(K).IsValueType || typeof(K) == typeof(string)) &&
                 (typeof(V).IsValueType) || typeof(V) == typeof(string)))
            {
                newDict = new Dictionary<K, V>(dict);
            }
            else // prepare to clone key or value or both
            {
                newDict = new Dictionary<K, V>();

                foreach (KeyValuePair<K, V> kvp in dict)
                {
                    K key;
                    if (typeof(K).IsValueType || typeof(K) == typeof(string))
                    {
                        key = kvp.Key;
                    }
                    else
                    {
                        key = (K)kvp.Key.Clone();
                    }
                    V value;
                    if (typeof(V).IsValueType || typeof(V) == typeof(string))
                    {
                        value = kvp.Value;
                    }
                    else
                    {
                        value = (V)kvp.Value.Clone();
                    }

                    newDict[key] = value;
                }
            }
        }

        return newDict;
    }

这对我来说很好

 // assuming this fills the List
 List<Dictionary<string, string>> obj = this.getData(); 

 List<Dictionary<string, string>> objCopy = new List<Dictionary<string, string>>(obj);

正如Tomer Wolberg在评论中所描述的，如果值类型是可变类，这是行不通的。

对我来说最好的方法是:

Dictionary<int, int> copy= new Dictionary<int, int>(yourListOrDictionary);

(注意:虽然克隆版本可能很有用，但对于简单的浅复制，我在另一篇文章中提到的构造函数是更好的选择。)

你希望拷贝的深度是多少，你使用的是什么版本的。net ?如果你使用的是。net 3.5，我认为对ToDictionary的LINQ调用，同时指定键和元素选择器将是最简单的方法。

例如，如果你不介意这个值是一个浅克隆:

var newDictionary = oldDictionary.ToDictionary(entry => entry.Key,
                                               entry => entry.Value);

如果你已经限制了T来实现ICloneable:

var newDictionary = oldDictionary.ToDictionary(entry => entry.Key, 
                                               entry => (T) entry.Value.Clone());

(这些方法未经测试，但应该有效。)