winform开发中绑定combox到枚举

开发中需要根据下拉框的选择处理一些业务逻辑，使用ID值或Text值都不利于代码维护，所以可以写个扩展方法绑定到枚举上。

 public static class Extensions

    {



        /// <summary>

        /// 绑定ComboBoxEx数据源到枚举类型

        /// </summary>

        /// <param name="cmb"></param>

        /// <param name="enumType"></param>

        /// <param name="selectIndex"></param>

        public static void BindToEnumName(this ComboBox cmb, Type enumType, int selectIndex = 0)

        {

            cmb.DataSource = Enum.GetNames(enumType);

        }



        /// <summary>

        ///  获取选择项

        /// </summary>

        /// <typeparam name="T"></typeparam>

        /// <param name="cmb"></param>

        /// <returns></returns>

        public static T GetSelectedItemToEnum<T>(this ComboBox cmb)

        {

            return (T)Enum.Parse(typeof(T), cmb.SelectedItem.ToString(), false);

        }



        /// <summary>

        /// 设置选定项

        /// </summary>

        /// <typeparam name="T"></typeparam>

        /// <param name="cmb"></param>

        /// <param name="t"></param>

        public static void SetSelectedItemToEnum<T>(this ComboBox cmb, T t)

        {

            cmb.SelectedItem = t.ToString();

        }



    }

调用方法：

 

        private void button1_Click(object sender, EventArgs e)

        {

            this.comboBox1.BindToEnumName(typeof(TypeEnum));

        }



        private void button2_Click(object sender, EventArgs e)

        {

            var type = this.comboBox1.GetSelectedItemToEnum<TypeEnum>();

            this.textBox1.Text = type.ToString() + ":" + (int)type;

        }



        private void button3_Click(object sender, EventArgs e)

        {

            this.comboBox1.SetSelectedItemToEnum(this.textBox2.Text); 

        }



        private void button4_Click(object sender, EventArgs e)

        {

            this.comboBox1.SetSelectedItemToEnum<TypeEnum>((TypeEnum)(int.Parse(this.textBox3.Text)));

        }



        public enum TypeEnum

        {

            类型1 = 1,

            类型2 = 2

        }