How to add dictionary to another dictionary?

Nitesh

2 Points

1 Posts

I have a dictionary that has some values in it, say:

Flowers <string, string>

I now receive another similar dictionary, say:

NewFlowers <string,string>

How can I append the entire NewFlowers dictionary to Flowers?

c#.netcore

Views: 2261
Total Answered: 1
Total Marked As Answer: 0
Posted On: 12-Dec-2022 06:48

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Add key-value pairs present in the given dictionary into the source dictionary.

- Rahul Maurya 12-Dec-2022 23:30

Answers

beginer

1544 Points

52 Posts

we can use extension method like

public static void AddRange<T, S>(this Dictionary<T, S> source, Dictionary<T, S> collection)
 {
        if (collection == null)
        {
            throw new ArgumentNullException("Collection is null");
        }

        foreach (var item in collection)
        {
            if(!source.ContainsKey(item.Key)){ 
               source.Add(item.Key, item.Value);
            }
            else
            {
               // handle duplicate key issue here
            }  
        } 
 }

And we can use it as:

Dictionary<string,string> flowers = new Dictionary<string,string>();
Dictionary<string,string> newflowers = new Dictionary<string,string>();

flowers.AddRange(newflowers);

Posted On: 13-Dec-2022 05:46