请大家帮我看一下这段代码有没有问题

Question

就是从数据库中取出值，里的值是用,来隔开的，如：中国,美国,  这种，然后写入页面的一个CHECKBOXLIST控件中，可总是显示的不对。奇怪，我看了半天也看不出来什么地方有错误，请大家帮帮忙，谢谢
                if (sdr["成果类别"].ToString() != "")
                {
                    string[] bs1 = sdr["成果类别"].ToString().Split(',');
                    for (int i = 0; i < bs1.Count() -1 ; i++)
                    {
                        for (int ii = 0; ii < this.CheckBoxList1.Items.Count -1; ii++)
                        {
                            if (bs1[i] == this.CheckBoxList1.Items[ii].Value)
                            {
                                this.CheckBoxList1.Items[ii].Selected = true;
                            }
                            else
                            {
                                this.CheckBoxList1.Items[ii].Selected = false;
                            }
                        }
                    }
                }

Answer 1

if (sdr["成果类别"].ToString() != "") 
                { 
                    string[] bs1 = sdr["成果类别"].ToString().Split(','); 
                    for (int i = 0; i < bs1.Length -1 ; i++) 
                    { 
                     //不知道这里面你要干什么,逻辑感觉不对,如果是绑定,这还没绑定,列表的count为0,肯定没用
                        for (int ii = 0; ii < this.CheckBoxList1.Items.Count -1; ii++) 
                        { 
                            if (bs1[i] == this.CheckBoxList1.Items[ii].Value) 
                            { 
                                this.CheckBoxList1.Items[ii].Selected = true; 
                            } 
                            else 
                            { 
                                this.CheckBoxList1.Items[ii].Selected = false; 
                            } 
                        } 
                    } 
                }

Answer 2

         if (sdr["成果类别"].ToString() != "") 
                { 
                    string[] bs1 = sdr["成果类别"].ToString().Split(','); 
                    for (int i = 0; i < bs1.length  ; i++) 
                    { 
                         
                            if( this.CheckBoxList1.Items.FindItemByValue( bs1[i] ) != null )
                            { 
                                this.CheckBoxList1.SelectedIndex = i
                                break;
                            } 
                                            
                    } 
                }

Answer 3

                            if (bs1[i] == this.CheckBoxList1.Items[ii].Value) 
                            { 
                                this.CheckBoxList1.Items[ii].Selected = true; 
                            } 
                            else 
                            { 
                                this.CheckBoxList1.Items[ii].Selected = false; 
                            } 自己分析了一下，问题出错在这里了，后面判断的值会把前面的全部设为FALSE，所以无论怎么读，前面的值全是FALSE，所以控件上的值也没有被选中，谢谢大家。