请教关于如何在datalist列中做循环啊

Question

我用一个datalist绑定了一表用来显示数据，分了4个列，并在每个列的数据绑定前面加了<asp:checkbox></asp:checkbox>,我就是想做一个确定按钮，只要checkbox为真，就insert这个checkbox后面的内容 请给代码谢谢

Answer 1

   foreach (DataListItem dli in DataList1.Items)  //遍历DataList1的全部项
        {
            CheckBox cb = (CheckBox)dli.FindControl("CheckBox1");
            if(cb.Checked)
            {
              //do sth
            }        }

Answer 2

if(!IsPostBack)
{}
foreach (DataListItem dl in DataList1.Items)  
        {
            CheckBox cb =dl.FindControl("CheckBox1") as CheckBox;
            if(cb.Checked)
            {
            }
        }

Answer 3

请问下“checkbox1”是什么意思啊？我每个checkbox控件名称都不一样的哦,为什么会提示我“未将对象引用设置到对象实例？”

Answer 4

                    <ItemTemplate>
                        <tr>
                            <td>
                                <asp:CheckBox ID="CHK0" runat="server" />
                                <asp:LinkButton ID="Mcarlevel" runat="server"><%# DataBinder.Eval(Container.DataItem,"McarLever")%>></asp:LinkButton>
                            </td>
                            <td>
                                <asp:CheckBox ID="CHK1" runat="server" />
                                <asp:LinkButton ID="MoffLevel" runat="server"><%# DataBinder.Eval(Container.DataItem,"MoffLever")%>></asp:LinkButton>
                            </td>
                            <td>
                                <asp:CheckBox ID="CHK2" runat="server" />
                                <asp:LinkButton ID="MinfLevel" runat="server"><%# DataBinder.Eval(Container.DataItem,"MinfLever")%>></asp:LinkButton>
                            </td>
                            <td>
                                <asp:CheckBox ID="CHK3" runat="server" />
                                <asp:LinkButton ID="OperatorManage" runat="server"><%# DataBinder.Eval(Container.DataItem,"OperatorManage")%>></asp:LinkButton>
                            </td>
                        </tr>
                    </ItemTemplate>
                </asp:DataList>
                 <asp:LinkButton ID="LBTdlopmanage1" runat="server" OnClick="LBTdlopmanage1_Click1"></asp:LinkButton>
            </td>这是我前台页面的代码：想各位能给出个代码具体实现功能就是 当这些checkbox为真时，就update一下LinkButton中绑定的值进数据库！checkbox为假时就把linkbutton绑定出来的数据库中已有的值给del掉