C# Dictionary Extension [AddRange]

[distancexd]

I love dictionaries in c#. However there is no AddRange method. So I decided to create an extension for it. If you use dictionaries, this can be really helpful for you.

Make sure this code is in a static class as it's an extension.

public static void AddRange<TKey, TValue>(this Dictionary<TKey, TValue> dictionary, IEnumerable<KeyValuePair<TKey, TValue>> objects)
{
     foreach (var obj in objects)
     {
          if (dictionary.ContainsKey(obj.Key))
               dictionary[obj.Key] = obj.Value;
          else
               dictionary.Add(obj.Key, obj.Value);
     }
}

How do you use this?

var dictionary = new Dictionary<string, string>();
var list = new List<KeyValuePair<string, string>>()
{
     new KeyValuePair<string, string>("key", "value"),
     new KeyValuePair<string, string>("key1", "value"),
     new KeyValuePair<string, string>("key2", "value"),
     new KeyValuePair<string, string>("key3", "value"),
     new KeyValuePair<string, string>("key4", "value"),
     new KeyValuePair<string, string>("key5", "value")
};
dictionary.AddRange(list);

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[Harry]

Just curious, wouldn't monitoring the amount in the list and using a for method have been more efficient than having dead or not enough stuff stored?

 

[distancexd]

Just curious, wouldn't monitoring the amount in the list and using a for method have been more efficient than having dead or not enough stuff stored?

no idea what you mean by this. please explain.

 

[Harry]

no idea what you mean by this. please explain.

Never mind, late night attempts at coding... f*cked my < with my > as well. I'll look into this when I get my lappy

 

[distancexd]

Never mind, late night attempts at coding... f*cked my < with my > as well. I'll look into this when I get my lappy

Lol. I hope you enjoy 'looking into it'

 

[VerTical]

I love dictionaries in c#. However there is no AddRange method. So I decided to create an extension for it. If you use dictionaries, this can be really helpful for you.

Make sure this code is in a static class as it's an extension.

public static void AddRange<TKey, TValue>(this Dictionary<TKey, TValue> dictionary, IEnumerable<KeyValuePair<TKey, TValue>> objects)
{
     foreach (var obj in objects)
     {
          if (dictionary.ContainsKey(obj.Key))
               dictionary[obj.Key] = obj.Value;
          else
               dictionary.Add(obj.Key, obj.Value);
     }
}

How do you use this?

var dictionary = new Dictionary<string, string>();
var list = new List<KeyValuePair<string, string>>()
{
     new KeyValuePair<string, string>("key", "value"),
     new KeyValuePair<string, string>("key1", "value"),
     new KeyValuePair<string, string>("key2", "value"),
     new KeyValuePair<string, string>("key3", "value"),
     new KeyValuePair<string, string>("key4", "value"),
     new KeyValuePair<string, string>("key5", "value")
};
dictionary.AddRange(list);

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Good thread

 

[Marc Swinther]

Nice post