Populating a ComboBox using C#

Question

I would like to populate a combobox with the following:

Visible item / Item Value

English / En

Italian / It

Spainish / Sp 

etc...         


        

Answer 1

Create a class Language

public class Language
{
     public string Name{get;set;}
     public string Value{get;set;}
     public override string ToString() { return this.Name;}
}

Then, add as many language to the combobox that you want:

yourCombobox.Items.Add(new Language{Name="English",Value="En"});

Answer 2

but do you not just get your combo box name and then items.add("")?

For instance

Language.Items.Add("Italian");
Language.Items.Add("English");
Language.Items.Add("Spanish");

Hope this helped :D

Answer 3

Set the ValueMember/DisplayMember properties to the name of the properties of your Language objects.

class Language
{
    string text;
    string value;

    public string Text
    {
        get 
        {
            return text;
        }
    }

    public string Value
    {
        get
        {
            return value;
        }
    }

    public Language(string text, string value)
    {
        this.text = text;
        this.value = value;
    }
}

...

combo.DisplayMember= "Text";
combo.ValueMember = "Value";
combo.Items.Add(new Language("English", "en"));

Answer 4

Simple way is:

Dictionary<string, string> dict = new Dictionary<string, string>()
{
    {"English ","En" },
    {"Italian  ","It" },
    {"Spainish  ","Sp " }
};

combo.DataSource = new BindingSource(dict, null);
combo.DisplayMember = "Key";
combo.ValueMember = "Value";

Answer 5

To make it read-only, the DropDownStyle property to DropDownStyle.DropDownList.

To populate the ComboBox, you will need to have a object like Language or so containing both for instance:

public class Language {
    public string Name { get; set; }
    public string Code { get; set; }
}

Then, you may bind a IList to your ComboBox.DataSource property like so:

IList<Language> languages = new List<Language>();
languages.Add(new Language("English", "en"));
languages.Add(new Language("French", "fr"));

ComboxBox.DataSource = languages;
ComboBox.DisplayMember = "Name";
ComboBox.ValueMember = "Code";

This will do exactly what you expect.

Answer 6

No need to use a particular class Language,

Just replace it with :

KeyValuePair<string,string>