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  • Repeater嵌套Repeater并取得嵌套Repeater里面的控件

    前台代码:

       <asp:Repeater ID="RepeaterScene" runat="server" OnItemDataBound="RepeaterList_ItemDataBound">
                      <ItemTemplate>
                        <tr>
                            <td class="bg_1" style="text-align: right;  75px; height: 36px;">
                                <%#Eval("ClassName") %>:
                            </td>
                            <asp:HiddenField ID="hideClassId" runat="server" Value='<%#Eval("ClassId") %>' />
                            <asp:Repeater ID="RepeaterClassScene" runat="server">
                            <ItemTemplate>
                            <td>
                                <asp:CheckBoxList ID="CheckBoxList1"  runat="server" RepeatDirection="Horizontal">
                                </asp:CheckBoxList>
                            </td>
                               </ItemTemplate>
                           </asp:Repeater>
                        </tr>
                        </ItemTemplate>
                       </asp:Repeater>
    
    你要弄清楚,当绑定Repeater的数据源中没有值时,上面这些东西不显示在界面中,这样就可以做到添加数据后在前台动态显示。
    有数据时,显示效果

    显示效果

    后台代码:
      //显示所有景色类型
     
            private void BindScene()
            {     
                DataTable scene = new NJL.Bll.SceneTypeClass().GetScene(" where ParentId=0 and isshow=1");
                RepeaterScene.DataSource = scene;
                RepeaterScene.DataBind();
            }
    // Repeater 的ItemDataBound 方法    
            protected void RepeaterList_ItemDataBound(object sender,RepeaterItemEventArgs e)
            { 
                if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
                {
                    HiddenField hideClassId = (HiddenField)e.Item.FindControl("hideClassId");
                  
                    if(!string.IsNullOrEmpty(hideClassId.Value))
                    {
                        Repeater relist = (Repeater)e.Item.FindControl("RepeaterClassScene");
        
                        string where =string.Format(" where isshow=1 and ParentId='{0}'",hideClassId.Value);
                        DataTable cla = new NJL.Bll.SceneTypeClass().GetScene(where);
                        relist.DataSource = cla;
                         relist.DataBind();
                      
                         CheckBoxList ck = (CheckBoxList)relist.Items[0].FindControl("CheckBoxList1");
                         ck.DataValueField = "ClassId";
                         ck.DataTextField = "ClassName";
                         ck.DataSource = cla;
                         ck.DataBind();                 
                    }
                }
            }
    //获取设置选中的类型  获取Repeater内嵌的控件CheckBoxList 需要遍历                
                        if(!string.IsNullOrEmpty(m.SceneType))
                        {
                            string[] follow = m.SceneType.Split(',');
                            for (int i = 0; i < RepeaterScene.Items.Count;i++ )
                            {
                                Repeater rep2 = (Repeater)RepeaterScene.Items[i].FindControl("RepeaterClassScene");
                                for (int j = 0; j < rep2.Items.Count;j++ )
                                {
                                    CheckBoxList cbx = (CheckBoxList)rep2.Items[j].FindControl("CheckBoxList1");
                                    foreach(ListItem item in cbx.Items)
                                    {
                                        foreach(string s in follow)
                                        {
                                            if(item.Value==s)
                                            {
                                                item.Selected = true;
                                            }
                                        }
                                    }
                                }
                            }
                        }

    //保存选中的景点类型
        //旅游景点类型
                    string scenlist="";
                    for (int s = 0; s < RepeaterScene.Items.Count;s++ )
                    {
                        Repeater rep2 = (Repeater)RepeaterScene.Items[s].FindControl("RepeaterClassScene");
                        for (int x = 0; x < rep2.Items.Count;x++ )
                        {
                            CheckBoxList cbx = (CheckBoxList)rep2.Items[x].FindControl("CheckBoxList1");
                            foreach(ListItem item in cbx.Items)
                            {
                                if(item.Selected==true)
                                {
                                    scenlist += item.Value + ",";
                                }
                            }
                        }
                    }
     
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  • 原文地址:https://www.cnblogs.com/awake-insist/p/4740214.html
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