• Repeater中嵌套RadioButton和CheckBoxList


    昨天做个项目,其中有个页面,Repeater中要嵌套RadioButton和CheckBoxList,参照别人的方法,但就是取不到RadioButtonList的SelectedValue,弄了一个晚上才发现,绑定数据的时候没有放在!IsPostBack中,郁闷。代码如下
    aspx
    ----------------------------------------------------

     1<asp:repeater id="Rt_One" Runat="server">
     2                                    <ItemTemplate>
     3                                        <tr>
     4                                            <td valign="top">
     5                                                <asp:TextBox ID="txtquest" Runat="server" Text='<%# DataBinder.Eval( Container.DataItem ,"[questionid]") %>' Width="0">
     6                                                </asp:TextBox>
     7                                                <asp:Label ID="lblQuest" Runat="server">
     8                                                    <%# DataBinder.Eval( Container.DataItem ,"[Num]"%>
     9                                                </asp:Label>
    10                                                :<%# DataBinder.Eval( Container.DataItem ,"[strquestiontitle]"%>&nbsp;&nbsp;[<%# DataBinder.Eval( Container.DataItem ,"[store]"%>分]</td>
    11                                        </tr>
    12                                        <tr>
    13                                            <td>
    14                                                <asp:RadioButtonList ID="rbAnswer" Runat="server"></asp:RadioButtonList></td>
    15                                        </tr>
    16                                    </ItemTemplate>
    17                                </asp:repeater>
     1<asp:repeater id="Rt_More" Runat="server">
     2                                    <ItemTemplate>
     3                                        <tr>
     4                                            <td valign="top">
     5                                                <asp:TextBox ID="txtQuest2" Runat="server" Text='<%# DataBinder.Eval( Container.DataItem ,"[questionid]") %>' Width="0">
     6                                                </asp:TextBox>
     7                                                <asp:Label ID="lblQuest2" Runat="server">
     8                                                    <%# DataBinder.Eval( Container.DataItem ,"[Num1]"%>
     9                                                </asp:Label><%# DataBinder.Eval( Container.DataItem ,"[strquestiontitle]"%>&nbsp;&nbsp;[<%# DataBinder.Eval( Container.DataItem ,"[store]"%>分]</td>
    10                                        </tr>
    11                                        <tr>
    12                                            <td colspan="2">
    13                                                <asp:CheckBoxList ID="chkAnswer" Runat="server"></asp:CheckBoxList></td>
    14                                        </tr>
    15                                    </ItemTemplate>
    16                                </asp:repeater>

    cs
    1private void Page_Load(object sender, System.EventArgs e)
    2        {
    3            // 在此处放置用户代码以初始化页面
    4            if(!IsPostBack)
    5            {
    6                RtRt_OneBind();
    7                Rt_MoreBind();
    8            }

    9        }
     1private void RtRt_OneBind()
     2        {
     3            SqlConnection conn=new SqlConnection(strconn);
     4            SqlCommand cmd=new SqlCommand();
     5            cmd.Connection=conn;
     6            conn.Open();
     7            cmd.CommandType=CommandType.StoredProcedure;
     8            cmd.CommandText="s_TestPageQuestion_GetByPage";
     9            cmd.Parameters.Add("@id",SqlDbType.Int).Value=System.Convert.ToInt32(Request.QueryString["id"]);
    10            cmd.Parameters.Add("@type",SqlDbType.Int).Value=0;
    11            ds=new DataSet();
    12            da=new SqlDataAdapter(cmd);
    13            da.Fill(ds,"s_TestPageQuestion_GetByPage");
    14            Rt_One.DataSource=ds.Tables["s_TestPageQuestion_GetByPage"].DefaultView;
    15            Rt_One.DataBind();
    16        }
     1private void Rt_MoreBind()
     2        {
     3            SqlConnection conn=new SqlConnection(strconn);
     4            SqlCommand cmd=new SqlCommand();
     5            cmd.Connection=conn;
     6            conn.Open();
     7            cmd.CommandType=CommandType.StoredProcedure;
     8            cmd.CommandText="s_TestPageQuestion_GetByPage";
     9            cmd.Parameters.Add("@id",SqlDbType.Int).Value=System.Convert.ToInt32(Request.QueryString["id"]);
    10            cmd.Parameters.Add("@type",SqlDbType.Int).Value=0;
    11            ds=new DataSet();
    12            da=new SqlDataAdapter(cmd);
    13            da.Fill(ds,"s_TestPageQuestion_GetByPage");
    14            Rt_More.DataSource=ds.Tables["s_TestPageQuestion_GetByPage"].DefaultView;
    15            Rt_More.DataBind();
    16        }
     1override protected void OnInit(EventArgs e)
     2        {
     3            //
     4            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
     5            //
     6            InitializeComponent();
     7            Rt_One.ItemDataBound +=new RepeaterItemEventHandler(Rt_One_ItemDataBound);
     8            Rt_More.ItemDataBound +=new RepeaterItemEventHandler(Rt_More_ItemDataBound);
     9            base.OnInit(e);
    10        }

     1private void Rt_One_ItemDataBound(object sender, RepeaterItemEventArgs e)
     2        {
     3            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
     4            {
     5                RadioButtonList rbl = (RadioButtonList) e.Item.FindControl("rbAnswer");
     6                DataRowView row = (DataRowView) e.Item.DataItem;
     7                string questionid = row["questionid"].ToString() ;
     8                DataSet ands1 = new DataSet( );
     9                string sql = "S_Answer_Select";
    10                SqlConnection conn=new SqlConnection(strconn);
    11                SqlCommand ancmd = new SqlCommand( sql,conn);
    12                ancmd.CommandType = CommandType.StoredProcedure;
    13                ancmd.Parameters.Add("@questionid", SqlDbType.Int, 4).Value = questionid;
    14                SqlDataAdapter anda = new SqlDataAdapter( ancmd);
    15                anda.Fill(ands1);
    16                if(ands1!=null && ands1.Tables [0].Rows .Count >0)
    17                {
    18                    rbl.DataSource = ands1;
    19                    rbl.DataTextField = "result";
    20                    rbl.DataValueField = "id";
    21                    rbl.DataBind(); 
    22    
    23                }

    24                
    25            }
            
    26        }
     1private void Rt_More_ItemDataBound(object sender, RepeaterItemEventArgs e)
     2        {
     3            CheckBoxList chk = (CheckBoxList) e.Item.FindControl("chkAnswer");
     4            DataRowView row = (DataRowView) e.Item.DataItem;
     5            string questionid = row["questionid"].ToString() ;
     6            DataSet ands = new DataSet( );
     7            string sql = "S_Answer_Select";
     8            SqlConnection conn=new SqlConnection(strconn);
     9            SqlCommand ancmd = new SqlCommand( sql,conn);
    10            ancmd.CommandType = CommandType.StoredProcedure;
    11            ancmd.Parameters.Add("@questionid", SqlDbType.Int, 4).Value = questionid;
    12            SqlDataAdapter anda = new SqlDataAdapter( ancmd);
    13            anda.Fill(ands);
    14            if(ands!=null && ands.Tables [0].Rows .Count >0)
    15            {
    16                chk.DataSource = ands;
    17                chk.DataTextField = "result";
    18                chk.DataValueField = "id";
    19                chk.DataBind(); 
    20            }

    21        }

     1private void Button1_Click(object sender, System.EventArgs e)
     2        {
     3            
     4            SqlConnection conn=new SqlConnection(strconn);
     5            SqlCommand cmd=new SqlCommand();
     6            cmd.Connection=conn;
     7            conn.Open();
     8            sgring msg="";
     9            
    10            for(int i=0;i<Rt_One .Items .Count;i++)
    11            {
    12                TextBox questid = (TextBox) Rt_One.Items[i].FindControl("txtquest");
    13                RadioButtonList rbl = (RadioButtonList) Rt_One.Items[i].FindControl("rbAnswer");
    14                
    15                if(rbl!=null && rbl.SelectedValue !="")
    16                {
    17                    int questionid = Convert.ToInt32(questid.Text );
    18                    msg += rbl.SelectedValue.ToString ()+"|";
    19                    
    20                }

    21            }

    22            
    23            for(int m=0;m<Rt_More .Items .Count ;m++)
    24            {
    25                string msg = "";
    26                CheckBoxList mybox=(CheckBoxList)Rt_More.Items[m].FindControl("chkAnswer");
    27                TextBox questid2 = (TextBox) Rt_More.Items[m].FindControl("txtQuest2");
    28                int questid2v = Convert.ToInt32(questid2.Text );
    29                SqlCommand chkcmd = new SqlCommand( "s_Answer_GetRight",conn);
    30                
    31                    if(mybox!=null)
    32                    {
    33                        for(int n=0;n<mybox.Items .Count;n++)
    34                        {
    35                            if(mybox.Items [n].Selected )
    36                            {
    37                                msg += mybox.Items[n].Value +"|";
    38                            }

    39                        }

    40                    }

    41            }

    42
    43
    44        }

    绑定的代码不是我写的,有点乱。
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  • 原文地址:https://www.cnblogs.com/nonsuch/p/776310.html
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