ListView应用5-数据库的增删改查及分页

郁闷了好长一段时间，做了各种各样的修改，就是“删除”无法执行，罪魁祸首竟然是 ListView 控件中少设置了一个 DataKeyNames 属性，悲哀啊！

default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="listView6._Default" %> <div> <asp:ListView ID="ListView1" runat="server" DataSourceID="AccessDataSource1" DataKeyNames="xh" ItemPlaceholderID="PlaceHolder1" InsertItemPosition="LastItem" > <LayoutTemplate> <table border="2" cellpadding="6" cellspacing="0" align="center" mce_> <tr> <th >学号</th> <th >姓名</th> <th >电话</th> <th >QQ</th> <th >管理</th> </tr> <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder> <tr> <td colspan="5" align="right"> <asp:DataPager ID="DataPager1" runat="server" PageSize="15" > <Fields> <asp:NextPreviousPagerField ShowFirstPageButton="True" ShowNextPageButton="False" /> <asp:NumericPagerField /> <asp:NextPreviousPagerField ShowLastPageButton="True" ShowPreviousPageButton="False" /> </Fields> </asp:DataPager> </td> </tr> </table> </LayoutTemplate> <ItemTemplate> <tr> <td><asp:Label ID="Label1" runat="server" Text='<%# Eval("xh") %>'></asp:Label></td> <td><%#Eval("xm") %></td> <td><%#Eval("dh") %></td> <td><%#Eval("qq") %></td> <td align="center"> <asp:LinkButton ID="btnModify" runat="server" CommandName="Edit" >修改</asp:LinkButton> <asp:LinkButton ID="btnDelete" runat="server" CommandName="Delete" >删除</asp:LinkButton> </td> </tr> </ItemTemplate> <EditItemTemplate> <tr class="edit"> <td><asp:Label ID="Label1" runat="server" Text='<%# Eval("xh") %>'></asp:Label></td> <td><asp:TextBox ID="TextBox2" runat="server" Text="<%# Bind('xm') %>" CssClass="xm"></asp:TextBox></td> <td><asp:TextBox ID="TextBox3" runat="server" Text="<%# Bind('dh') %>" CssClass="dh"></asp:TextBox></td> <td><asp:TextBox ID="TextBox4" runat="server" Text="<%# Bind('qq') %>" CssClass="qq"></asp:TextBox></td> <td align="center"> <asp:LinkButton ID="btnModify" runat="server" CommandName="Update" >确认</asp:LinkButton> <asp:LinkButton ID="btnCancel" runat="server" CommandName="Cancel" >取消</asp:LinkButton> </td> </tr> </EditItemTemplate> <InsertItemTemplate> <tr class="insert"> <td><asp:TextBox ID="TextBox1" runat="server" Text="<%# Bind('xh') %>" CssClass="xm"></asp:TextBox></td> <td><asp:TextBox ID="TextBox2" runat="server" Text="<%# Bind('xm') %>" CssClass="xm"></asp:TextBox></td> <td><asp:TextBox ID="TextBox3" runat="server" Text="<%# Bind('dh') %>" CssClass="dh"></asp:TextBox></td> <td><asp:TextBox ID="TextBox4" runat="server" Text="<%# Bind('qq') %>" CssClass="qq"></asp:TextBox></td> <td align="center"> <asp:LinkButton ID="btnInsert" runat="server" CommandName="Insert" >插入</asp:LinkButton> <asp:LinkButton ID="btnClear" runat="server" CommandName="Cancel" >清除</asp:LinkButton> </td> </tr> </InsertItemTemplate> </asp:ListView> <asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/students.mdb" SelectCommand="SELECT * FROM [students] ORDER BY [xh]" UpdateCommand="UPDATE [students] SET [xm] = ?, [dh] = ?, [qq] = ? WHERE [xh] = ?" DeleteCommand="DELETE FROM [students] WHERE (xh =?)" InsertCommand="INSERT INTO [students] ([xh], [xm], [dh], [qq]) VALUES (?, ?, ?, ?)" > <UpdateParameters> <asp:Parameter Name="xm" Type="String" /> <asp:Parameter Name="dh" Type="String" /> <asp:Parameter Name="qq" Type="String" /> <asp:Parameter Name="xh" Type="String" /> </UpdateParameters> <DeleteParameters> <asp:Parameter Name="xh" Type="String" /> </DeleteParameters> <InsertParameters> <asp:Parameter Name="xh" Type="String" /> <asp:Parameter Name="xm" Type="String" /> <asp:Parameter Name="dh" Type="String" /> <asp:Parameter Name="qq" Type="String" /> </InsertParameters> </asp:AccessDataSource> </div>