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"));