How Can I Get Items From Database To Check List Box?

myCheckedListBox.DataSource = fillDataTable();
myCheckedListBox.DisplayMember = "DisplayColumnName";
myCheckedListBox.ValueMember = "valueColumnName";

public DataTable fillDataTable()
{
    using(SqlConnection sqlConn = new SqlConnection(conSTR))
    using(SqlCommand cmd = new SqlCommand("select DisplayColumnName,valueColumnName from MyTable" , sqlConn))
    {
        sqlConn.Open();
        DataTable dt = new DataTable();
        dt.Load(cmd.ExecuteReader());
        return dt;
    }
}