datalist 内绑定的数据的控件操作

Question

我在DATALIST里边的TextBox和label控件绑定完数据库数据，如何在C#里边控制这些Textbox和label的控件啊？

Answer 1

<div>
        <asp:DataList ID="DataList1" runat="server" DataKeyField="EMPID" 
            DataSourceID="SqlDataSource1">
            <ItemTemplate>
            <table>
            <tr>
              <td><span>账号：</span></td>
              <td>
                <asp:Label ID="Id" runat="server" Text='<%# Eval("EMPID") %>' />
              </td>
            </tr>
            <tr>
                <td><span>姓：</span></td>
                <td>
                <asp:TextBox ID="Ln" runat="server" Text='<%# Eval("LNAME") %>' />
                </td>
            </tr>
            <tr>
                <td><span>名：</span></td>
                <td>
                <asp:TextBox ID="Fn" runat="server" Text='<%# Eval("FNAME") %>' />
                </td>
            </tr>
                </table>
            </ItemTemplate>
        </asp:DataList>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:ConnectionString %>" 
            ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" 
            SelectCommand="SELECT EMP.EMPID,EMP.LNAME, EMP.FNAME FROM EMP WHERE (EMP.EMPID = :EMPID)">
            <SelectParameters>
                <asp:QueryStringParameter Name="EMPID" QueryStringField="empid" />
            </SelectParameters>
        </asp:SqlDataSource>
    </div>如果要再后台控制TextBox这个控件的值或隐藏要如何才能控制它？

Answer 2

前台：
        <asp:DataList ID="DataList1" runat="server">
         <ItemTemplate>
            <%# valid(Convert.ToInt32(DataBinder.Eval(Container.DataItem,"FNAME"))) %>
         </ItemTemplate>
        </asp:DataList>
后台:
       public string valid(string val)
        {
            if (val == "2")
            {
                return "<asp:TextBox ID='Fn' runat='server' Text='" + val + "' />";
            }
            else
            {
                return "<asp:TextBox ID='Fn' runat='server' Text='' />";
            }        }

Answer 3

protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
    {
       
        TextBox tb = e.Item.FindControl("Ln") as TextBox;//获取textbox
        tb.Visible = false;//设置可见性
    }

Answer 4

 Boolean boolean = false;
        foreach (DataListItem item in DataList1.Items)
        {
            CheckBox cb = (CheckBox)(item.FindControl("cbx")); 
            if (cb.Checked == true)
            {
                boolean = true;
            }
            else
            {
                
            }