using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
using System.Diagnostics;
using System.Text;
using System.Linq;
using System.Net;
using System.Collections.Generic;
using System.Reflection;
using System.Linq.Expressions;
using System.ComponentModel;
using System.Data;

namespace Test_1
{
    public partial class Form1 : Form
    {
        private BindingSource bindingSource1 = new BindingSource();


        public Form1()
        {
            InitializeComponent();

            this.Load += new System.EventHandler(EnumsAndComboBox_Load);

        }

        private void EnumsAndComboBox_Load(object sender, System.EventArgs e)
        {
            // Populate the data source.
            bindingSource1.Add(new Knight(Title.King, "Uther", true));
            bindingSource1.Add(new Knight(Title.King, "Arthur", true));
            bindingSource1.Add(new Knight(Title.Sir, "Mordred", false));
            bindingSource1.Add(new Knight(Title.Sir, "Gawain", true));
            bindingSource1.Add(new Knight(Title.Sir, "Galahad", true));

            // Initialize the DataGridView.
            dataGridView1.AutoGenerateColumns = false;
            dataGridView1.AutoSize = true;
            dataGridView1.DataSource = bindingSource1;

            dataGridView1.Columns.Add(CreateComboBoxWithEnums());

            // Initialize and add a text box column.
            DataGridViewColumn column = new DataGridViewTextBoxColumn();
            column.DataPropertyName = "Name";
            column.Name = "Knight";
            dataGridView1.Columns.Add(column);

            // Initialize and add a check box column.
            column = new DataGridViewCheckBoxColumn();
            column.DataPropertyName = "GoodGuy";
            column.Name = "Good";
            dataGridView1.Columns.Add(column);

            // Initialize the form.
            this.Controls.Add(dataGridView1);
            this.AutoSize = true;
            this.Text = "DataGridView object binding demo";
        }

        private static T GetAttribute<T>(Enum value)
        {
            T attribute = value.GetType()
                .GetMember(value.ToString())[0].GetCustomAttributes(typeof(T), false)
                .Cast<T>()
                .SingleOrDefault();
            return attribute;
        }

        DataGridViewComboBoxColumn CreateComboBoxWithEnums()
        {
            DataGridViewComboBoxColumn combo = new DataGridViewComboBoxColumn();
            //combo.DataSource = Enum.GetValues(typeof(Title));


            var datatable = new DataTable(); //Setup a DataTable for your ComboBox Column
            datatable.Columns.Add("col1", typeof(string));
            datatable.Columns.Add("col2", typeof(Title));

            foreach (Title item in Enum.GetValues(typeof(Title)))
            {
                datatable.Rows.Add(GetAttribute<DescriptionAttribute>(item).Description, item);
            }

            combo.DisplayMember = "col1";
            combo.ValueMember = "col2";
            combo.DataSource = datatable;

            combo.DropDownWidth = 200;

            combo.DataPropertyName = "Title";
            combo.Name = "Title";
            return combo;
        }

        private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if (e.ColumnIndex == 0)//where Column1 is your combobox column
            {
                var val = dataGridView1[e.ColumnIndex, e.RowIndex].Value;
                if (val != null)
                {
                    e.Value = ((Title)val).ToString();
                    e.FormattingApplied = true;
                }

            }
        }

        #region "business object"
        private class Knight
        {
            private string hisName;
            private bool good;
            private Title hisTitle;

            public Knight(Title title, string name, bool good)
            {
                hisTitle = title;
                hisName = name;
                this.good = good;
            }

            public Knight()
            {
                hisTitle = Title.Sir;
                hisName = "<enter name>";
                good = true;
            }

            public string Name
            {
                get
                {
                    return hisName;
                }

                set
                {
                    hisName = value;
                }
            }

            public bool GoodGuy
            {
                get
                {
                    return good;
                }
                set
                {
                    good = value;
                }
            }

            public Title Title
            {
                get
                {
                    return hisTitle;
                }
                set
                {
                    hisTitle = value;
                }
            }
        }
        #endregion

    }

    public enum Title
    {
        [Description("This better be thy king!")]
        King,

        [Description("aka wanna-be-king")]
        Sir
    };
}