how can create my own dictionary with one key and multiple value

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hi

how can create my own dictionary with one key and multiple value

Example

C#

Dictionary<int, string,string,bool,int,string......... > dict = new Dictionary<int, string,string,bool,int,string......... >();

Posted 19-Oct-15 1:37am

murkalkiran

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BillWoodruff 19-Oct-15 8:47am

if all your values were the same Type, you could a Dictionary<int, List<string>>

Philippe Mori 27-Oct-15 12:19pm

That code is not maintanable. Uses specific objects as indicated in solutions 1and 2.

4 solutions

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CPallini · Accepted Answer · 2015-10-19T01:42:00

Solution 1

Simply group your 'multiple values' in a object and store the {key, object} pair in the standard Dictionary.

Posted 19-Oct-15 1:42am

CPallini

Comments

Maciej Los 19-Oct-15 9:22am

5ed!

Matt T Heffron 26-Oct-15 13:12pm

+5

Palash Mondal_ · Accepted Answer · 2015-10-19T02:02:00

Solution 2

You can simply create a class like:

C#

public class MultipleValues
{
    public string value1;
    public bool value2;
    public int value3;
    // add all the values you need here
}

and then you can use it in the Dictionary like:

C#

var dict = new Dictionary<int, MultipleValues>();

Posted 19-Oct-15 2:02am

Palash Mondal_

Updated 19-Oct-15 2:03am

v2

Comments

Maciej Los 19-Oct-15 9:24am

+5!

Matt T Heffron 26-Oct-15 13:12pm

+5

El_Codero · Accepted Answer · 2015-10-19T15:13:00

Solution 3

another solution could be using a tuple within your dictionary

var dictionary = new Dictionary<string, Tuple<string, int>>();

Posted 19-Oct-15 15:13pm

El_Codero

Updated 26-Oct-15 0:09am

v4

Comments

Matt T Heffron 26-Oct-15 13:11pm

OP Seems to have a pretty long list of values.
Beyond 7 values, Tuples need to be nested which will make for some pretty ugly code.
Making an application specific class to hold exactly the correct types, and giving them meaningful names is the way to go.

El_Codero 26-Oct-15 13:23pm

Hi Matt, yes your absolutely right...but "multiple" could also mean less than 8 values ;)... the meaningful names within a class are definitely a big plus. Regards

bling · Accepted Answer · 2015-10-19T16:33:00

Solution 4

Seems like most of the answers overlook the obvious.

You want your key to be an int and the value to be multiple values of any type. Why not use the boxing feature of .NET?

C#

var map = new Dictionary<int, List<object> >();

List<object> list;
if ( map.TryGetValue(5, out list) )
{
    foreach (var item in list)
        Console.WriteLine(item);
}
</object>

Posted 19-Oct-15 16:33pm

bling

Updated 19-Oct-15 16:34pm

v2

Comments

phil.o 26-Oct-15 6:39am

Except boxing/unboxing operations are really costly. Moreover, it's not really easy to get back a given value in its original type when you stored all as objects. Other solutions do not have these issues.