Radio Button and Drop Down List Dynamic

//We need to make DataSource first:
genderdata Data = new genderdata(); //genderdata is class obejct
List<genderdata> GenderData = new List<genderdata>();
Data.GenderName = "Male";
Data.GenderId = 1;
GenderData.Add(Data);
Data.GenderName = "Female";
Data.GenderID = 2;
GenderData.Add(Data);

//rdoGender is Radio Button List
                rdoGender.DataValueField = "GenderID";
                rdoGender.DataTextField = "GenderName";
                rdoGender.DataSource = new GenderSystem().getgender();
                rdoGender.DataBind();
--For DataSource we can use rdoGender.DataSource = GenderData (That we make before)

                DDLCountry.DataValueField = "CountryID"; //Disesuaikan dengan class datanya
                DDLCountry.DataTextField = "CountryName";//Disesuaikan dengan class datanya
                DDLCountry.DataSource = new CountrySystem().getcountry();
                DDLCountry.DataBind();
                DDLCountry.Items.Insert(0, new ListItem("--Please choose--", "0"));
--For DataSource we can do same as Radio Button List