Default ข้อมูลลง ComBoBox in DataGridView แบบช่องของ สถานะ

 sql = "select * from receives_types";
            sda = new SqlDataAdapter(sql, conn);
            sda.Fill(dt);
            i9.DisplayMember = "name";
            i9.ValueMember = "id";
            i9.DataSource = dt;

  foreach (DataRow item in dt.Rows)
            {
                int n = dataGridView1.Rows.Add();
                dataGridView1.Rows[n].Cells[0].Value = item["receive_no"].ToString();
                dataGridView1.Rows[n].Cells[1].Value = item["invoice_no"].ToString();
                dataGridView1.Rows[n].Cells[2].Value = item["product_code"].ToString();
                dataGridView1.Rows[n].Cells[3].Value = item["receive_id"].ToString();
                dataGridView1.Rows[n].Cells[4].Value = item["product_name"].ToString();
                dataGridView1.Rows[n].Cells[5].Value = item["product_unit_name"].ToString();
                dataGridView1.Rows[n].Cells[6].Value = item["remark"].ToString();
                dataGridView1.Rows[n].Cells[7].Value = item["quantity"].ToString();
                dataGridView1.Rows[n].Cells[8].Value = item["receive_type_id"].ToString();
            }

private void load_default()
        {
            if (conn.State == ConnectionState.Closed)
                conn.Open();
            string sql = "select * FROM receive_details JOIN receives ON receives.id=receive_details.receive_id join stock_incomings on stock_incomings.receive_detail_id=receive_details.id";
            SqlDataAdapter sda = new SqlDataAdapter(sql
            , conn); 
            DataTable dt = new DataTable();
            sda.Fill(dt);
            dataGridView1.Rows.Clear();

            sql = "select * from receives_types";
            sda = new SqlDataAdapter(sql, conn);
            sda.Fill(dt);//// dt ถูก set ค่าใหม่ 
            i9.DisplayMember = "name";
            i9.ValueMember = "id";
            i9.DataSource = dt; // dt น่าจะมาจาก sql = "select * from receives_types";
           
            foreach (DataRow item in dt.Rows) // dt น่าจะมาจาก sql = "select * from receives_types";
            {
                int n = dataGridView1.Rows.Add();
                dataGridView1.Rows[n].Cells[0].Value = item["receive_no"].ToString();
                dataGridView1.Rows[n].Cells[1].Value = item["invoice_no"].ToString();
                dataGridView1.Rows[n].Cells[2].Value = item["product_code"].ToString();
                dataGridView1.Rows[n].Cells[3].Value = item["receive_id"].ToString();
                dataGridView1.Rows[n].Cells[4].Value = item["product_name"].ToString();
                dataGridView1.Rows[n].Cells[5].Value = item["product_unit_name"].ToString();
                dataGridView1.Rows[n].Cells[6].Value = item["remark"].ToString();
                dataGridView1.Rows[n].Cells[7].Value = item["quantity"].ToString();
                dataGridView1.Rows[n].Cells[8].Value = item["receive_type_id"].ToString();
            }

        } 

private DataTable Table(String SQL)
        {
            if (conn.State == ConnectionState.Closed)
                conn.Open();
            SqlDataAdapter sda = new SqlDataAdapter(SQL, conn); 
            DataTable dt = new DataTable();
            sda.Fill(dt);
            Return dt;
       }

dataGridView1.DataSource = Table("select * FROM receive_details JOIN receives ON receives.id=receive_details.receive_id join stock_incomings on stock_incomings.receive_detail_id=receive_details.id");

i9.DataSource = Table("select * from receives_types");

"select * FROM receive_details JOIN receives ON receives.id=receive_details.receive_id join stock_incomings on stock_incomings.receive_detail_id=receive_details.id"

"select * from receives_types"

this.dataGridViewTextBoxColumn1.DataPropertyName = "PostCodeID";
            this.dataGridViewTextBoxColumn1.HeaderText = "PostCodeID";
            this.dataGridViewTextBoxColumn1.Name = "dataGridViewTextBoxColumn1";
            // 
            // dataGridViewTextBoxColumn2
            // 
            this.dataGridViewTextBoxColumn2.DataPropertyName = "PostCode";
            this.dataGridViewTextBoxColumn2.HeaderText = "PostCode";
            this.dataGridViewTextBoxColumn2.Name = "dataGridViewTextBoxColumn2";
            // 
            // dataGridViewTextBoxColumn3
            // 
            this.dataGridViewTextBoxColumn3.DataPropertyName = "Pnv";
            this.dataGridViewTextBoxColumn3.DataSource = this.sett_Post_ProvinceBindingSource;
            this.dataGridViewTextBoxColumn3.DisplayMember = "Province";
            this.dataGridViewTextBoxColumn3.HeaderText = "Pnv";
            this.dataGridViewTextBoxColumn3.Name = "dataGridViewTextBoxColumn3";
            this.dataGridViewTextBoxColumn3.Resizable = System.Windows.Forms.DataGridViewTriState.True;
            this.dataGridViewTextBoxColumn3.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;
            this.dataGridViewTextBoxColumn3.ValueMember = "pvnID";
            // 
            // dataGridViewTextBoxColumn4
            // 
            this.dataGridViewTextBoxColumn4.DataPropertyName = "Amp";
            this.dataGridViewTextBoxColumn4.HeaderText = "Amp";
            this.dataGridViewTextBoxColumn4.Name = "dataGridViewTextBoxColumn4";
            // 
            // dataGridViewTextBoxColumn5
            // 
            this.dataGridViewTextBoxColumn5.DataPropertyName = "PosOff";
            this.dataGridViewTextBoxColumn5.HeaderText = "PosOff";
            this.dataGridViewTextBoxColumn5.Name = "dataGridViewTextBoxColumn5";
            // 
            // dataGridViewTextBoxColumn6
            // 
            this.dataGridViewTextBoxColumn6.DataPropertyName = "Note";
            this.dataGridViewTextBoxColumn6.HeaderText = "Note";
            this.dataGridViewTextBoxColumn6.Name = "dataGridViewTextBoxColumn6";


            this.sett_Post_PostCodeDataGridView.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
            this.dataGridViewTextBoxColumn1,
            this.dataGridViewTextBoxColumn2,
            this.dataGridViewTextBoxColumn3,
            this.dataGridViewTextBoxColumn4,
            this.dataGridViewTextBoxColumn5,
            this.dataGridViewTextBoxColumn6});
            this.sett_Post_PostCodeDataGridView.DataSource = this.sett_Post_PostCodeBindingSource;

private DataTable GetTable(String SQL)
        {
            if (conn.State == ConnectionState.Closed)
                conn.Open();
            SqlDataAdapter sda = new SqlDataAdapter(SQL, conn); 
            DataTable dt = new DataTable();
            sda.Fill(dt);
            Return dt;
       }

// Set Column
            DataGridViewTextBoxColumn c1 = new DataGridViewTextBoxColumn() { DataPropertyName = "receive_no", HeaderText = "receive_no" };
            DataGridViewTextBoxColumn c2 = new DataGridViewTextBoxColumn() { DataPropertyName = "invoice_no", HeaderText = "invoice_no" };
            DataGridViewTextBoxColumn c3 = new DataGridViewTextBoxColumn() { DataPropertyName = "product_code", HeaderText = "product_code" };
            DataGridViewTextBoxColumn c4 = new DataGridViewTextBoxColumn() { DataPropertyName = "receive_id", HeaderText = "receive_id" };
            DataGridViewTextBoxColumn c5 = new DataGridViewTextBoxColumn() { DataPropertyName = "product_name", HeaderText = "product_name" };
            DataGridViewTextBoxColumn c6 = new DataGridViewTextBoxColumn() { DataPropertyName = "product_unit_name", HeaderText = "product_unit_name" };
            DataGridViewTextBoxColumn c7 = new DataGridViewTextBoxColumn() { DataPropertyName = "remark", HeaderText = "remark" };
            DataGridViewTextBoxColumn c8 = new DataGridViewTextBoxColumn() { DataPropertyName = "quantity", HeaderText = "quantity" };
            DataGridViewComboBoxColumn c9 = new DataGridViewComboBoxColumn() { DataPropertyName = "receive_type_id", HeaderText = "receive_type_id", DataSource = GetTable(select * from receives_types), DisplayMember = "name", ValueMember = "id" };

// Add Column
            dataGridView1.Columns.AddRange(c1,c2,c3,c4,c5,c6,c7,c8,c9);
// Set DataSource 
            dataGridView1.DataSource =GetTable (select * FROM receive_details JOIN receives ON receives.id=receive_details.receive_id join stock_incomings on stock_incomings.receive_detail_id=receive_details.id);