浅析Repeater的子控件的应用

    好吧，是这个样子的，前段时间做程序时候，发现前人留下来是程序组合，与界面搭配，是一个令人不爽的，首先在一个Repeater控件中有个RadioButtonList和DropDownList控件当更改RadioButtonList的选择项时候为DropDownList重新绑定数据protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        RadioButtonList rbl = sender as RadioButtonList; //找到控件本身
        Repeater repS = rbl.Parent.Parent as Repeater;  //drop的上一级的上一级控件就是Repeater控件
        int n = ((RepeaterItem)rbl.Parent).ItemIndex; //获取当前选中行的索引
        //查找其下班的dr控件
        DropDownList drl = (DropDownList)(repS.Items[n].FindControl("ddlParent"));
    
 
        if (rbl.SelectedValue == "1")
        {
            string sqlstring = "select  i_id,s_name from tabuer where i_id=0";
            drl.DataSource = new DB().getDs(sqlstring);
            drl.DataTextField = "s_name";
            drl.DataValueField = "i_id";
            drl.DataBind();
            drl.Visible = true;
        }
        else if (rbl.SelectedValue == "2")
        {
            string sqlstring = "s elect  i_id,s_name from tabuer where i_id>0"
 
            drl.DataSource = new DB().getDs(sqlstring);
            drl.DataTextField = "s_name";
            drl.DataValueField = "i_id";
            drl.DataBind();
            drl.Visible = true;
        }
        else
        {
            drl.Visible = false;
        }
 
}

    好的，程序就是这样完成的，至于如何生成这个RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
只能你自己想办法了，我的做法是在Repeater外添加一个新的RadioButtonList1控件，并未它生成RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)，随后删除这个外边的RadioButtonList1控件，把SelectedIndexChanged绑定到Repeater里边的RadioButtonList控件上就ok了。

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