how to show image in datagridview in c#

private void CreateColumns()     {         var imageColumn = new DataGridViewImageColumn();           object dgvDisplayTiles;         for (var i = 0; i < dgvDisplayTiles.Rows.Count; i++)         {             var bmpImage = (Bitmap)Image.FromFile(Application.StartupPath + dgvDisplayTiles.Rows[i].Cells[3].Value.ToString(), true);             imageColumn.Image = bmpImage;             imageColumn.ImageLayout = DataGridViewImageCellLayout.Stretch;             imageColumn.Dispose();             //dgvDisplayTiles.Rows.Add();             dgvDisplayTiles.Rows[i].Cells[3].Value = bmpImage;             dgvDisplayTiles.Rows[i].Height = 100;             dgvDisplayTiles.Columns.Add(imageColumn);                      }     }