Как правильно использовать DataSource?

            
            // Initialize an array with data to bind to the combo box.
            var daysOfWeek =
                new[] { "Monday", "Tuesday", "Wednesday", 
                        "Thursday", "Friday", "Saturday", 
                        "Sunday" };
 
            ComboBox comboBox;
 
            // Initialize combo box
            comboBox = new ComboBox
            {
                DataSource = daysOfWeek,
                Location = new System.Drawing.Point(12, 12),
                Name = "comboBox1",
                Size = new System.Drawing.Size(166, 21),
                DropDownStyle = ComboBoxStyle.DropDownList
            };
            // Add the combo box to the form.
            this.Controls.Add(comboBox);
 
            // Initialize combo box
            comboBox = new ComboBox
            {
                DataSource = daysOfWeek,
                Location = new System.Drawing.Point(12, 42),
                Name = "comboBox2",
                Size = new System.Drawing.Size(166, 21),
                DropDownStyle = ComboBoxStyle.DropDownList
            };
            // Add the combo box to the form.
            this.Controls.Add(comboBox);

comboBox.BindingContext = new BindingContext();

BindingSource bs = new BindingSource(daysOfWeek, "");
comboBox1.DataSource = bs;