cell fromtating of DataGridView need to compare two values from two cells same row, c#

I have a win form that has a gridview, and I need to change the color of the cell, based on itslef and a different cell.
If you look at the code below it works fine when changign the color of the cell besad on the current cells value.
But I need to be able to compare both values and then change the cell color.

The position of the colums can change but not the name.

        private void ECCN_CellFormatting(DataGridViewCellFormattingEventArgs ee, string case_str)
        {

            switch (case_str)
            {
                case "Y": ee.CellStyle.BackColor = Color.LawnGreen; break;
                case "N": ee.CellStyle.BackColor = Color.Red; break;
                case "0": ee.CellStyle.BackColor = Color.Red; ee.CellStyle.ForeColor = Color.Yellow; break;
                default: break;
            }
        }

        private void dataGridView_CellFormatting(object sender, DataGridViewCellFormattingEventArgs ee)
        {

            switch (dataGridView1.Columns[ee.ColumnIndex].Name)
            {
                case "eccn_available": ECCN_CellFormatting(ee, (string)ee.Value); break;
                case "eccn_value": ECCN_CellFormatting(ee, (string)ee.Value); break;
                default: break;
            }
        }


these methods are called by :
        public void InitializeGrid(DataGridView lv_StockCheckdataGridView
                                  ,string GridViewName)
        {

 
            lv_StockCheckdataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            lv_StockCheckdataGridView.ContextMenuStrip = this.contextMenuStrip1;
            lv_StockCheckdataGridView.AllowUserToAddRows = false;
            lv_StockCheckdataGridView.AllowUserToDeleteRows = false;
            lv_StockCheckdataGridView.AllowUserToOrderColumns = true;
            lv_StockCheckdataGridView.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            lv_StockCheckdataGridView.Size = new System.Drawing.Size(1074, 604);
            lv_StockCheckdataGridView.TabIndex = 5;
            lv_StockCheckdataGridView.MouseDown += new System.Windows.Forms.MouseEventHandler(this.dataGridView1_MouseDown);
            lv_StockCheckdataGridView.CellFormatting += new System.Windows.Forms.DataGridViewCellFormattingEventHandler(this.dataGridView_CellFormatting);
            lv_StockCheckdataGridView.Location = new System.Drawing.Point(12, 43);
            lv_StockCheckdataGridView.Name = GridViewName;
            lv_StockCheckdataGridView.ReadOnly = true;
            lv_StockCheckdataGridView.AllowUserToResizeColumns = true;

        }


I need a way to look at all the values for the rows I have just populated in the grid and