基于SqlDataSource的DataView中的删除操作

1 创建支持删除的SqlDataSource
   在配置SqlDataSource的Sql语句后，左下角的高级


点击高级选项后出现如下画面

完成后会自动生成基于主键的InsertCommand ，DeleteCommand，UpdateCommand的语句，如下

< asp:SqlDataSource ID = " SqlDataSource1 "  runat = " server "  ConnectionString = " <%$ ConnectionStrings:WHGDTempConnectionString2 %> "
            DeleteCommand = " DELETE FROM [AddrInfo] WHERE [ID] = @ID "  
            InsertCommand = " INSERT INTO [AddrInfo] ([TVNum], [HostName], [TerminalNum], [Addr]) VALUES (@TVNum, @HostName, @TerminalNum, @Addr) "
            SelectCommand = " SELECT [ID], [TVNum], [HostName], [TerminalNum], [Addr] FROM [AddrInfo] "
            UpdateCommand = " UPDATE [AddrInfo] SET [TVNum] = @TVNum, [HostName] = @HostName, [TerminalNum] = @TerminalNum, [Addr] = @Addr WHERE [ID] = @ID " >
             < DeleteParameters >
                 < asp:Parameter Name = " ID "  Type = " Decimal "   />
             </ DeleteParameters >
             < UpdateParameters >
                 < asp:Parameter Name = " TVNum "  Type = " Decimal "   />
                 < asp:Parameter Name = " HostName "  Type = " String "   />
                 < asp:Parameter Name = " TerminalNum "  Type = " String "   />
                 < asp:Parameter Name = " Addr "  Type = " String "   />
                 < asp:Parameter Name = " ID "  Type = " Decimal "   />
             </ UpdateParameters >
             < InsertParameters >
                 < asp:Parameter Name = " TVNum "  Type = " Decimal "   />
                 < asp:Parameter Name = " HostName "  Type = " String "   />
                 < asp:Parameter Name = " TerminalNum "  Type = " String "   />
                 < asp:Parameter Name = " Addr "  Type = " String "   />
             </ InsertParameters >
         </ asp:SqlDataSource >

上面的语句中，ID为主键，至此SqlDataSource
创建完成

2 生成DataView
编辑列时，添加一个绑定字段和一个删除字段


添加列完成后，为DataView的DataKeyNames属性添加值ID，这个是保证删除操作能够完成的关键
也就是和SqlDataSource中的字段相对应