Add Enumaration value into Dropdown Box using C#.Net

 First Create a Enumeration using Enum Keyword.

    enum days
        {
            Monday=1,
            Friday,
            Sunday
        }

add a enum value into Dropdown box.

Create Drop down box .
add this code in the Form loading or button click event or any where...

         comboBox1.Items.Add(days.Friday);
             comboBox1.Items.Add(days.Monday );
             comboBox1.Items.Add(days.Sunday);