Repeater套Repeater

Question

这是后台代码 protected void Page_Load(object sender, EventArgs e)
    {
          //获得最外面TypeName标题
        this.Repeater1.DataSource = BType.getTypeName().Tables[0];
        this.Repeater1.DataBind();      
    }    protected void Repeater1_ItemDataBound1(object sender, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            Repeater rpt = (Repeater)e.Item.FindControl("Repeater_1");
            DataRowView rowv = (DataRowView)e.Item.DataItem;
            int id = Convert.ToInt32(rowv["ID"]);
            rpt.DataSource = BType.getAllByStu(id).Tables[0];
            rpt.DataBind();
        }
    }前台 <div>
        <asp:Repeater ID="Repeater1" runat="server" onitemdatabound="Repeater1_ItemDataBound1" 
            >
        <HeaderTemplate>
        <table>
        <tr>
        <td>
        产品名称
        </td>
        </tr>
        </HeaderTemplate>
        <ItemTemplate>
        
        <tr><td><%#Eval("typename")%></td></tr>
        <!--分类下的产品--> 
    <asp:Repeater id="rptProduct" runat="server" > 
      <ItemTemplate> 
       <tr><td><%#Eval("proname") %></td></tr>
      </ItemTemplate> 
    </asp:Repeater> 
        </ItemTemplate>
        <FooterTemplate></table></FooterTemplate>
        </asp:Repeater>
    </div>报错ID 既不是表 Table 的 DataColumn 也不是 DataRelation  请高手解决 在线等

Answer 1

e.Item.DataItem 中没有绑定ID这一列,要在前台绑定时将ID绑定出来,后台才可以那样取值

Answer 2

请问 绑定的是最外层的ID 还是第2个repeater的ID？

Answer 3

 DataRowView rowv = (DataRowView)e.Item.DataItem;
根据你这句话来判断,是外层的rpt中绑定

Answer 4

int id = Convert.ToInt32(((DataRowView)e.Item.DataItem).Row["id"]);

Answer 5

如果绑定的是在外层的ID的话 根据外层的ID 查询出第二层的内容?

Answer 6

BType.getAllByStu(id).Tables[0];
你的这个方法不是根据当前数据前来判断?

Answer 7

没错 是根据这个方法来获得第二个repeater的内容
  

Answer 8

你的e.Item.findControl("Repeater_1");应该改成e.Item.findControl("rptProduct")

Answer 9

已经改了 但还是显示id不属于table

Answer 10

ID 不属于TABle, 是因为你在绑定rpt1的时,你的e.Item.DataItem这行是根本就没有这ID这一列

Answer 11

   
//获得最外面TypeName标题
        this.Repeater1.DataSource = BType.getTypeName().Tables[0];
        this.Repeater1.DataBind();
这个获得了最外层repeater的标题 也可以获得studid
然后是根据studid来查询第二个repeater的内容

Answer 12

我帖我的代码给你看 <asp:Repeater ID="repeater1" runat="server" 
                                                        onitemdatabound="repeater1_ItemDataBound">
                                                <HeaderTemplate>
                                                    <table width="75%" border="0" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
                                                      <tr>
                                                        <td height="30" bgcolor="#e6edf2"  align="center">角色  |   操作</td>
                                                        <asp:Repeater ID="repeater2" runat="server">
                                                            <ItemTemplate>
                                                             <td height="30" align="center" bgcolor="#e6edf2"><span class="S1"><strong><%# Eval("powerName") %></strong></span></td>
                                                            </ItemTemplate>
                                                        </asp:Repeater>
                                                        <td height="30" align="center" bgcolor="#e6edf2"><span class="S1"><strong>操作</strong></span></td>
                                                      </tr>
                                                     </HeaderTemplate>
                                                     <ItemTemplate>
                                                      <tr>
                                                      <td height="30" align="center" bgcolor="#FFFFFF"><span class="S1">
                                                      <asp:Label ID="lab" runat="server" Text='<%# Eval("roleID") %>' Visible="true"></asp:Label> | <%# Eval("roleName") %>
                                                      </span>
                                                      </td>
                                                    <asp:Repeater ID="repeater3" runat="server" onitemdatabound="repeater3_ItemDataBound">
                                                      <ItemTemplate>
                                                          <td bgcolor="#FFFFFF" align="center"><asp:Label ID="ss" runat="server"  Visible="false" /> <asp:Label ID="labpower" runat="server" Text='<%# Eval("powerID") %>' Visible="false"></asp:Label> | <asp:CheckBox ID="checkBox"    oncheckedchanged="checkBox_CheckedChanged"  AutoPostBack="true"  runat="server" /> </td>
                                                     </ItemTemplate>
                                                    </asp:Repeater>
                                                        <td bgcolor="#FFFFFF" align="center"><span class="S1">左边勾选</span></td>
                                                      </tr>
                                                      </ItemTemplate>
                                                      <FooterTemplate>
                                                    </table>
                                                    </FooterTemplate>
                                                </asp:Repeater>
cs    protected void repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            Entity.PowerEntity pw = new Entity.PowerEntity();
            pw.powerWhere = "parentID<>0";
            if (e.Item.ItemType == ListItemType.Header)//找到表头中的repeater2并为它绑定数据
            {              
                Repeater rep = (Repeater)e.Item.FindControl("repeater2");
                DataSetBind(pw, rep);
            }
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)//找到模版中的repeater3并为它绑定数据(权限操作的数据源)
            {
                Repeater rep = (Repeater)e.Item.FindControl("repeater3");
                DataSetBind(pw, rep);
            }
            
        }
        protected void repeater3_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            int rolepowerids = 0;
            int roleIDs = 0;
            int powerIds = 0;
            bool isBool = false;
            Entity.RolePowerEntity rolepowers = new Entity.RolePowerEntity();
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                roleIDs = Convert.ToInt32(((DataRowView)((RepeaterItem)((Repeater)sender).NamingContainer).DataItem)["roleID"].ToString());
                //用到内层Repeater的NamingContainer属性得到包含了它的外层Repeater的RepeaterItem,得到角色的ID号                powerIds = Convert.ToInt32(((Label)e.Item.FindControl("labpower")).Text);//找到该列的权限操作的ID号
                rolepowers.PowerID = powerIds;
                rolepowers.RoleID = roleIDs; 
                Entity.RolePowerEntity rp = logic.RolePower.Exquery_RolePower_List(rolepowers); //通过该方法返回一条数据,为下面的chbox赋值,这里是关健
                CheckBox ck = ((CheckBox)e.Item.FindControl("checkBox"));
                Label lb = (Label)e.Item.FindControl("ss");
                lb.Text = rp.RolePowerID.ToString();
                ck.Checked = rp.isRole;               //将变量保存到选框中的属性中
                ck.Attributes.Add("rolePowerID",rp.RolePowerID.ToString());
                ck.Attributes.Add("roleID", rp.RoleID.ToString());
                ck.Attributes.Add("powerID", rp.PowerID.ToString());
            }
        }

Answer 13

问题几经解决 非常感谢 你们的回答 
一个是e.Item.findControl("Repeater_1");应该改成e.Item.findControl("rptProduct")后面的repeaterID写错了
一个是 int id = Convert.ToInt32(((DataRowView)e.Item.DataItem).Row["id"]);
没有绑定自己想绑定的studid  非常感谢

Answer 14

我帮你改改,,不知道楼主要的是不是这样的效果 <div>
        <asp:Repeater ID="Repeater1" runat="server" onitemdatabound="Repeater1_ItemDataBound1" 
            >
        <HeaderTemplate>
        <table>
        <tr>
        <td>
        产品名称
        </td>
        </tr>
        </HeaderTemplate>
        <ItemTemplate>
        
<tr><td>
<%#Eval("typename")%>
<input type="hidden" id="hd_id" runat="server" value="<%# Eval(ID号) %>" />
</td></tr>
        <!--分类下的产品--> 
    <asp:Repeater id="rptProduct" runat="server" > 
      <ItemTemplate> 
       <tr><td><%#Eval("proname") %></td></tr>
      </ItemTemplate> 
    </asp:Repeater> 
        </ItemTemplate>
        <FooterTemplate></table></FooterTemplate>
        </asp:Repeater>
    </div>后台修改 protected void Page_Load(object sender, EventArgs e)
    {
          //获得最外面TypeName标题
        this.Repeater1.DataSource = BType.getTypeName().Tables[0];
        this.Repeater1.DataBind();      
    }    protected void Repeater1_ItemDataBound1(object sender, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            Repeater rpt = (Repeater)e.Item.FindControl("rptProduct");
            int id = 0;
          HtmlInputHidden hd=(HtmlInputHidden )e.item.findControl("hd_id");
          int.TryParse(hd.value,out id);
            rpt.DataSource = BType.getAllByStu(id).Tables[0];
            rpt.DataBind();
        }
    }

Answer 15

     <asp:Repeater ID="Repeater1" runat="server" OnItemDataBound="Repeater2">
            <ItemTemplate>
                <%#Eval("uname") %>
                <%#Eval("upass") %><br />               
                    <asp:Repeater ID="Repeater2" runat="server">
                        <ItemTemplate>
                         abc<%#Eval("uname") %>
                        efg<%#Eval("upass") %><br />   
                        </ItemTemplate>
                    </asp:Repeater>
            </ItemTemplate>            
        </asp:Repeater>
后台代码 protected void Page_Load(object sender, EventArgs e)
    {        Repeater1.DataSource = UserInfoManager.getUserInfoByLinq();
        Repeater1.DataBind();
        
     
        
    }
    protected void Repeater2(object sender, RepeaterItemEventArgs e)
    {
        
        Repeater rep = e.Item.FindControl("Repeater2") as Repeater;
        if (rep != null)
        {
            rep.DataSource = UserInfoManager.getUserInfoByLinq();
            rep.DataBind();
        }
     
    }