vb.net and sql flagging

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VB

SQL

SQL-Server-2008

please help im newbie in programming im using vb.net and sql

i want to highlight with color cyan the value (1) for deletion i dont want to delete data instead i use to highlight it as way of deletion in vb.net when i stop and re run again the program the highlighted data was unhighlighted

this is my code:

Private Sub dgvDoctorsList_CellDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvDoctorsList.CellDoubleClick

If MessageBox.Show("Are you sure want to delete this data ?", "CONFIRMATION", MessageBoxButtons.YesNo, MessageBoxIcon.Information) = Windows.Forms.DialogResult.Yes Then

    Dim objCmd As New SqlCommand()
    Using con As New SqlConnection("server=ACHACOSOFAMILY;database=jjasgh;integrated security=true")
        objCmd.Connection = con
        con.Open()

        For Each objRow As DataGridViewRow In dgvDoctorsList.SelectedRows
            objCmd.CommandText = "Update tbl_Doctor SET Remarks=1 where License_no=@license"

            objCmd.Parameters.AddWithValue("@license", dgvDoctorsList.CurrentRow.Cells(0).Value)
            objCmd.ExecuteNonQuery()
            objRow.DefaultCellStyle.BackColor = Color.Cyan

        Next
    End Using
 End sub
        con.Close()

can anyone help me in this kind of program thanks for consideration thanks in advance