Bind combobox in datagridview in editable mode in winform

 I want editable grid in my project, I  do this as below using"  dataGridView1_EditingControlShowing" event.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace DataGridViewComboBoxBinding

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

            this.dataGridView1.AutoGenerateColumns = false;

            this.ColumnPersonTypeCode.DataPropertyName = "Value";

            this.ColumnPersonTypeCode.DisplayMember = "Name";

            this.ColumnPersonTypeCode.ValueMember = "Value";

            this.ColumnPersonTypeCode.DataSource = Findingproduct();

            //this.dataGridView1.DataSource = Findingproduct();

            //Findingproduct();

        private DataTable Findingproduct()

        {

            DataTable dt = new DataTable();

            dt.Columns.Add("Name");

            dt.Columns.Add("Value");

            DataRow dr = dt.NewRow();

            dr[0] = "sanjay";

            dr[1] = "1";

            dt.Rows.Add(dr);

            dr = dt.NewRow();

            dr[0] = "Raju";

            dr[1] = "2";

            dt.Rows.Add(dr);

            return dt;

        }

        void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)

        {

            if (this.dataGridView1.CurrentCell.ColumnIndex == this.ColumnPersonTypeCode.Index)

            {

              //BindingSource bindingSource = this.dataGridView1.DataSource as BindingSource;

        }

              // Person person = bindingSource.Current as Person;

              //BindingList<PersonType> bindingList = this.FindPersonTypes(person);

                DataGridViewComboBoxEditingControl comboBox = e.Control as DataGridViewComboBoxEditingControl;

                DataGridViewTextBoxEditingControl txt=e.Control as DataGridViewTextBoxEditingControl;

                //comboBox.DataSource = Findingproduct();

                comboBox.SelectionChangeCommitted -= this.comboBox_SelectionChangeCommitted;

                comboBox.SelectionChangeCommitted += this.comboBox_SelectionChangeCommitted;

            }

        }

        void comboBox_SelectionChangeCommitted(object sender, EventArgs e)

        {

            var currentcell = dataGridView1.CurrentCellAddress;

            var sendingCB = sender as DataGridViewComboBoxEditingControl;

            DataGridViewTextBoxCell cel = (DataGridViewTextBoxCell)dataGridView1.Rows[currentcell.Y].Cells[0];

            cel.Value = sendingCB.EditingControlFormattedValue.ToString();

            this.dataGridView1.EndEdit();

        }

       

    }

  

}

After Run Result  window:

Label :winform ,c#,asp.net,combobox,datagridview