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Deserialization problem with Dictionary


By : girl93
Date : October 16 2020, 11:12 PM
Any of those help Dictionaries don't really support serialization. This is a known issue which troubles many programmers, so if you Google ".NET Dictionary Serialization" you'll get many results with "how-to"s and workarounds.
This blog post, for example, suggests you use the KeyedCollection class instead.
code :


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Json Deserialization to Dictionary .NET


By : user1777042
Date : March 29 2020, 07:55 AM
Hope that helps Why not just use one of the many JSON parsers for C#.
Personally, I think Json.NET is very nice. It supports LINQ queries against JSON data, serialization to/from JSON, etc.

ServiceStack Dictionary DTO Dictionary<string, string> Data type deserialization


By : Sonya Bouazizi
Date : March 29 2020, 07:55 AM
With these it helps Need to modify my jScript
{"APIKey":"test","APISecret":"test","APIVersion":"1.0", "Fields":"{'JobID':'2290277','CountryID':'1'}"}

Dictionary is empty on deserialization


By : Sandeep Yadav
Date : March 29 2020, 07:55 AM
Hope that helps I am assuming you are using BinaryFormatter.
BinaryFormatter is a graph serializer. Rather than objects being stored in a pure tree, they are assigned temporary object ids and stored as they are encountered. Thus when an object is deserialized, it is not guaranteed that all referenced objects have been previously deserialized. Thus it's possible the entries in your forwardMap have not been filled in yet.
code :
// It might be necessary to call OnDeserialization from a container if the container object also implements
// OnDeserialization. However, remoting will call OnDeserialization again.
// We can return immediately if this function is called twice. 
// Note we set remove the serialization info from the table at the end of this method.
public partial class BidirectionalDictionary<TKey, TValue> : IDeserializationCallback
{
    public void OnDeserialization(object sender)
    {
        this.forwardMap.OnDeserialization(sender);
        foreach (KeyValuePair<TKey, TValue> entry in forwardMap)
        {
            this.inverseMap.Add(entry.Value, entry.Key);
        }
        // inverseInstance will no longer be able to be read-only sicne it is being allocated in a post-deserialization callback.
        this.inverseInstance = new BidirectionalDictionary<TValue, TKey>(this);
    }

Deserialization Dictionary Issues


By : Pavol Varga
Date : March 29 2020, 07:55 AM
To fix the issue you can do JSON serialization does not on it's own handle complex typed (non string, int etc...) dictionaries, you would have to create your own Dictionary Serialization mechanism or do what you are doing via List<>.
I ran across this same issue when trying to make a more efficient serializer/deserializer for WCF, while JSON will be more compact it is lacking in complicated object graphs.

Dictionary is not supported for serialization/deserialization of a dictionary, keys must be strings or objects


By : Jae Angelo Biscocho
Date : March 29 2020, 07:55 AM
I wish this help you This is your dictionary: Dictionary
This is what your dictionary should be: Dictionary
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