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  • repeater操作

    protected void rpRole_ItemDataBound(object sender, RepeaterItemEventArgs e)

    {

        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

        {

            DataRowView drv = e.Item.DataItem as DataRowView;

            string roleid = drv["Id"].ToString();

            CheckBox chb = e.Item.FindControl("chbId") as CheckBox;

     

            if (ht.ContainsValue(roleid))

            {

                chb.Checked = true;

            }

     

        }

    }

     

     

     

    --关于Repeater中嵌套Repeater写法,注意此时html生成二级Repeater的id是多个

    protected void rpFn1_ItemDataBound(object sender, RepeaterItemEventArgs e)

    {

        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

        {

            DataRowView drv = e.Item.DataItem as DataRowView;

            int functionId = Convert.ToInt32( drv["Id"].ToString());

     

            Repeater rp2 = (Repeater)e.Item.FindControl("rpFn2"); --如果不这样做,就报"当前上下文中不存在名称rpFn2"

     

            DataSet ds2 = new DataSet();

            ds2 = bllF.GetList(-1, "ParentId=" + functionId, "SortBy desc");

            rp2.DataSource = ds2;

            rp2.DataBind();

     

        }

    }

     

     

     

    datarow[] 绑定可以到datalist等控件

     

     

     刚开始以为不可以绑定到datalist gatagrid repeater等控件 原来是不会写

    DataRow[] dr=dt.Select();

       DataGrid1.DataSource=dr;

       DataGrid1.DataBind();

    页面得写为

    <asp:Label text='<%# DataBinder.eval_r(Container.DataItem,"["huifuName"]")%>' Runat=server></asp:Label>

    不能写为<asp:Label text='<%# DataBinder.eval_r(Container.DataItem,"huifuName")%>' Runat=server></asp:Label>

    也不能写为<%# ((DataRowView)Container.DataItem["huifuName"]%>

    当然一般我们使用选择都是在dataview上操作的 然后将dataview绑定到。。

     

    rpFn1_ItemDataBound事件中不能写DataRowView drv = e.Item.DataItem as DataRowView;

    要写成:DataRow drv = e.Item.DataItem as DataRow;

     

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  • 原文地址:https://www.cnblogs.com/huaci/p/3375892.html
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