<asp:DataList ID="dlTable" runat="server" > <ItemTemplate> <td align="center"> <asp:Label ID="lblID" runat="server" Text='<%#Eval("StudentID") %>' Visible="false"></asp:Label> <asp:CheckBox ID="Chkbox" runat="server" /> </td> <td> <%#Eval("studentname") %> </td> <td> <%#Eval("studentid") %> </td> </ItemTemplate> </asp:DataList>

//new一个stringbulider的实例sbitems StringBuilder sbitems = new StringBuilder(); foreach (DataListItem item in dlTable.Items) { //获取前台控件 CheckBox chkbox = item.FindControl("Chkbox") as CheckBox; Label lbId = item.FindControl("lblID") as Label; //如果checkbox被check了，那么将对应的label绑定的值赋给sbitems，以进行后续的操作，比如删除。 if (chkbox == null || lblID== null) { continue; } if (chkbox.Checked) { sbitems.Append(lblID.Text.ToString()); sbitems.Append(","); } } //由于多了一个逗号，所以还要remove掉逗号 if (!sbitems.ToString().Trim().Equals(string.Empty)) { sbitems.Remove(sbitems.Length - 1, 1); }