Repeater控件中CheckBox

我在Repeater控件中有CheckBox控件，我怎么能选中CheckBox控件后，Repeater控件重新绑定一下？

解决方案 »

  1.   

    利用Repeater中的事件判断checkbox是否选中
      

  2.   

    Sample：<%@ Page Language="C#" %>
    <%@ Import Namespace="System.Data" %><%-- http://community.csdn.net/Expert/TopicView3.asp?id=5654641 --%><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">
        void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack) {
                // 首次加载数据一定要放在 !IsPostBack 内，
                // 避免回发的时候再次绑定数据，覆盖复选框状态
                LoadProductData();            
            }
        }    void chk_CheckedChanged(object sender, EventArgs e)
        {
            // 触发此事件的 CheckBox
            CheckBox chk = sender as CheckBox;
            // 得到 CheckBox 所在行
            RepeaterItem item = chk.NamingContainer as RepeaterItem;
            // 得到 Repeater，当然这里可以直接引用控件ID
            Repeater grd = item.NamingContainer as Repeater;        
            Label lblProductName = item.FindControl("lblProductName") as Label;
            Response.Write(item.ItemIndex);
            Response.Write(lblProductName.Text);
            // 你自己的绑定代码
            // more codes
            // ...              
        }        void LoadProductData()
        {
            DataTable dt = CreateProductTable();
            Repeater1.DataSource = dt;
            Repeater1.DataBind();
        }      #region sample data       static DataTable CreateProductTable()
        {
            DataTable tbl = new DataTable("Products");        tbl.Columns.Add("ProductID", typeof(int));
            tbl.Columns.Add("ProductName", typeof(string));
            tbl.Columns.Add("CategoryID", typeof(int));
            tbl.Columns.Add("HasPic", typeof(bool));
            tbl.Columns.Add("Reviewed", typeof(bool));
            DataRow row = tbl.NewRow();
            row[0] = 1;
            row[1] = "Chai";
            row[2] = 1;
            row[3] = true;
            row[4] = false;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 2;
            row[1] = "Chang";
            row[2] = 1;
            row[3] = false;
            row[4] = false;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 3;
            row[1] = "Aniseed Syrup";
            row[2] = 2;
            row[3] = true;
            row[4] = false;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 4;
            row[1] = "Chef Anton's Cajun Seasoning";
            row[2] = 2;
            row[3] = false;
            row[4] = true;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 5;
            row[1] = "Chef Anton's Gumbo Mix";
            row[2] = 2;
            row[3] = true;
            row[4] = true;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 47;
            row[1] = "Zaanse koeken";
            row[2] = 3;
            row[3] = true;
            row[4] = true;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 48;
            row[1] = "Chocolade";
            row[2] = 3;
            row[3] = false;
            row[4] = false;
            tbl.Rows.Add(row);        row = tbl.NewRow();
            row[0] = 49;
            row[1] = "Maxilaku";
            row[2] = 3;
            row[3] = true;
            row[4] = false;
            tbl.Rows.Add(row);       return tbl;
        }
       
        #endregion
    </script><html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <title>RepeaterCheckBoxAutoPost</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
        <asp:repeater ID="Repeater1" runat="server">
        <HeaderTemplate>
            <table border="1"><tr><td></td></tr>        
            </HeaderTemplate> 
            <ItemTemplate>
            <tr>
                <td><asp:CheckBox ID="chk" runat="server" AutoPostBack="true" OnCheckedChanged="chk_CheckedChanged" /></td>
                <td><%# Eval("ProductName") %></td>
                <td><asp:label ID="lblProductName" runat="server" text='<%# Eval("ProductName") %>' /></td>
            </tr>
            </ItemTemplate>         
            <FooterTemplate> 
            </table>
            </FooterTemplate>
            </asp:repeater>
        </div>
        </form>
    </body>
    </html>