How to modify a KeyValuePair value?

Question

I got a problem when I try to modify the value of an item because its only a read only field.

KeyValuePair<Tkey, Tvalue> 

I've tried different alternatives like:

Dictionary<Tkey, Tvalue> 

but there I have the same problem. Is there a way to set the value field to an new value?

Answer 1

You can't modify it, you can replace it with a new one.

var newEntry = new KeyValuePair<TKey, TValue>(oldEntry.Key, newValue); 

or for dictionary:

dictionary[oldEntry.Key] = newValue; 

Answer 2

Here, if you want to make KeyValuePair mutable.

Make a custom class.

public class KeyVal<Key, Val> {     public Key Id { get; set; }     public Val Text { get; set; }      public KeyVal() { }      public KeyVal(Key key, Val val)     {         this.Id = key;         this.Text = val;     } } 

so we can make it use in wherever in KeyValuePair.