CODEWITHSUNDEEP
c#comboboxdatasource
Julien Powell
Julien Powell

Reputation: 176

Loading a combo box data source

SO I am wanting to load a data source for a combo box with the use of a function that receives as a string the name of the data source it needs to load and then have it load it however I cannot get this to work as I think the program is simply trying to load the variable name rather that the data source it represents. Sorry if that's badly worded hopefully my code clears up what I mean.

This is how I am doing it now

    bool TeamPlayers(string teamName, ComboBox team)//Makes the players of the selected team available for selection as scorers
    {
        if (teamName == "Canada")
        {
            string[] players = {"Johny Moonlight", "DTH Van Der Merwe", "Phil Mackenzie" };
            team.DataSource = players;
        }
        else if (teamName == "New Zealand")
        {
            string[] players = {"Dan Carter", "Richie Mccaw", "Julian Savea" };
            team.DataSource = players;
        }
        else if (teamName == "South Africa")
        {
            string[] players = {"Jean de Villiers", "Bryan Habana", "Morne Steyn" };
            team.DataSource = players;
        }
        return (true);
    }

But I would like to do something more like this

    bool TeamPlayers(string teamName, ComboBox team)//Makes the players of the selected team available for selection as scorers
    {
        string[] Canada = {"Johny Moonlight", "DTH Van Der Merwe", "Phil Mackenzie" };
        string[] NZ = {"Dan Carter", "Richie Mccaw", "Julian Savea" };
        string[] RSA = {"Jean de Villiers", "Bryan Habana", "Morne Steyn" };
        team.DataSource = teamName;
        return (true);
    }

Where teamName will be either Canada,NZ or RSA. Does anyone know of a way I can do this?

Upvotes: 0

Views: 76

Answers (3)

Shar1er80
Shar1er80

Reputation: 9041

Make a Dictionary of team names. 

Dictionary<string, string[]> teams = new Dictionary<string, string[]>();

public void PopulateTeams()
{
    teams.Add("canada", new[] { "Johny Moonlight", "DTH Van Der Merwe", "Phil Mackenzie" });
    teams.Add("nz", new[] { "Dan Carter", "Richie Mccaw", "Julian Savea" });
    teams.Add("rsa", new[] { "Jean de Villiers", "Bryan Habana", "Morne Steyn" });
}

Usage of Dictionary:

private bool TeamPlayers(string teamName, ComboBox team)
{
    team.DataSource = null;
    if (teams.ContainsKey(teamName))
    {
        team.DataSource = teams[teamName];
        return true;
    }
    return false;
}

Upvotes: 1

Praveen Paulose
Praveen Paulose

Reputation: 5771

You can use a dictionary to achieve similar functionality

bool TeamPlayers(string teamName, ComboBox team)//Makes the players of the selected team available for selection as scorers
{
    Dictionary<string, string[]> teamNames = new Dictionary<string, string[]>();

    teamNames.Add("Canada", new string[] { "Johny Moonlight", "DTH Van Der Merwe", "Phil Mackenzie" });
    teamNames.Add("New Zealand", new string[] { "Dan Carter", "Richie Mccaw", "Julian Savea" });
    teamNames.Add("South Africa", new string[] { "Jean de Villiers", "Bryan Habana", "Morne Steyn" });

    team.DataSource = teamNames[teamName];
    return (true);
}

Upvotes: 0

CodeWarrior
CodeWarrior

Reputation: 7470

You could make a dictionary like so:

dict<string, string[]> teamPlayers;

Key would be teamname, value would be players.

team.DataSource = teamPlayers[teamName];

Upvotes: 0

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