最近学习Castle+IBatisNet，分页的问题困扰我很久，在网上也有一些解决IBatisNet分页的思路，但却没有详细的代码，给初学者带来不便。现在把详细代码贴出，跟大家分享！
一.项目框架参考NPetShop,整个解决方案分为：
Domain -- 业务实体层
Persistence -- 持久层，负责数据访问
Service -- 服务层，调用持久层方法并实现业务逻辑
Web -- 最终展现给客户的Web界面，调用Service层方法
Componet -- 主要包括一些通用的方法等
二.Persistence：（BaseSqlMapDao类）
1.BaseSqlMapDao.cs
/// <summary>
/// 分页方法，得到分页的列表
/// </summary>
/// <param name="statementName">操作名称</param>
/// <param name="parameterObject">参数</param>
/// <param name="pageSize">每页记录数</param>
/// <returns></returns>
protected IPaginatedList ExecuteQueryForPaginatedList(string statementName, object parameterObject, int pageSize)
{
try
{
return sqlMap.QueryForPaginatedList(statementName, parameterObject, pageSize);
}
catch (Exception e)
{
throw new DataMapperException("Error executing query '" + statementName + "' for paginated list. Cause: " + e.Message, e);
}
}
2.UsersDB.cs
#region 用于分页
public IPaginatedList GetUserPagerList(int PageSize)
{
return ExecuteQueryForPaginatedList("SelectUsers", null, PageSize);
}
#endregion
三.Component（略）
四.Model（略）
五.Service:
1.IUsersService.cs（IUsersService接口）
region 用于分页
IPaginatedList GetUserPagerList(int PageSize);
#endregion
2.UsersService.cs（UsersService类，继承IUsersService接口）
private UsersDB _users;
public UsersService(UsersDB users)
{
_users = users;
}
#region 用于分页
public IPaginatedList GetUserPagerList(int PageSize)
{
return _users.GetUserPagerList(PageSize);
}
#endregion
六.Web(UI层)
1.***.aspx:
<asp:GridView ID="GridView1" runat="server" Width="580px"
AutoGenerateColumns="False" DataKeyNames="users_ID"
onrowdatabound="GridView1_RowDataBound" onrowdeleting="GridView1_RowDeleting">
<Columns>
<asp:BoundField HeaderText="No." />
<asp:HyperLinkField DataNavigateUrlFields="users_ID"
DataNavigateUrlFormatString="UserInfo.aspx?users_ID={0}"
DataTextField="users_ID" HeaderText="用户ID" Target="_blank" />
<asp:BoundField DataField="users_Name" HeaderText="用户名" />
<asp:TemplateField HeaderText="性别">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("users_Sex") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("users_Sex").ToString()=="0"?"女":"男" %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="users_Add" HeaderText="地址" />
<asp:BoundField DataField="users_Email" HeaderText="Email" />
<asp:BoundField DataField="users_DateTime" HeaderText="开户时间" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
</asp:GridView>
<table style="580px;">
<tr>
<td align="left">
<asp:LinkButton ID="lbFrist" runat="server" CommandName="first"
oncommand="GridViewPaging">|<Frist</asp:LinkButton>
<asp:LinkButton ID="LinkbuttonPrev" runat="server" CommandName="prev"
oncommand="GridViewPaging"><<Prev</asp:LinkButton>
</td>
<td>
<asp:Label ID="Label16" runat="server" Text="Page："></asp:Label>
<asp:Label ID="lbCurrentPage" Style="text-align:left;" runat="server"></asp:Label>
<asp:Label ID="Label17" runat="server" Text="/"></asp:Label>
<asp:Label ID="lbPageCount" Style="text-align:left;" runat="server"></asp:Label>
<asp:Label ID="Label10" runat="server" Text="Totle："></asp:Label>
<asp:Label ID="lbRecordCount" Style="text-align:left;" runat="server"></asp:Label>
</td>
<td align="right">
<asp:LinkButton ID="LinkbuttonNext" runat="server" CommandName="next"
oncommand="GridViewPaging">Next>></asp:LinkButton>
<asp:LinkButton ID="lbLast" runat="server" CommandName="last"
oncommand="GridViewPaging">Last>|</asp:LinkButton>
</td>
</tr>
</table>
2.***.aspx.cs:
#region 定义分页变量
int CurrentPage;//当前页数
int PageSize=10; //每页条数
int PageCount; //总页数
int RecordCount;//总条数
#endregion
private IUsersService _org;
public IUsersService org
{
set { _org = value; }
}
#region Page_Load事件
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
#region 分页所用
CurrentPage = 0;//当前页习惯设为0
ViewState["PageIndex"] = 0;//页索引也设为0
RecordCount = _org.GetUserPageCount().PageCount;//总记录数
if (RecordCount % PageSize == 0)//计算总共有多少页
{
PageCount = RecordCount / PageSize;
}
else
{
PageCount = RecordCount / PageSize + 1;
}
ViewState["PageCount"] = PageCount;//会话session对整个application有效，而视图状态viewstate相当于某个页面的session
this.lbRecordCount.Text = RecordCount.ToString();//显示总记录数
this.lbPageCount.Text = PageCount.ToString();//显示总页数
#endregion
GridViewBind();
}
}
#endregion
#region GridView绑定
private void GridViewBind()
{
int StartIndex = CurrentPage * PageSize;//设定导入的起终地址
IPaginatedList pagerlist = _org.GetUserPagerList(PageSize);
this.GridView1.DataSource = pagerlist;
this.GridView1.DataBind();
this.LinkbuttonPrev.Enabled = true;
this.LinkbuttonNext.Enabled = true;
if (CurrentPage == (PageCount - 1)) this.LinkbuttonNext.Enabled = false;//当为最后一页时，下一页链接按钮不可用
if (CurrentPage == 0) this.LinkbuttonPrev.Enabled = false;//当为第一页时，上一页按钮不可用
this.lbCurrentPage.Text = (CurrentPage + 1).ToString();//当前页数
}
#endregion
#region 分页事件
protected void GridViewPaging(object sender, CommandEventArgs e)
{
IPaginatedList pagerlist = _org.GetUserPagerList(PageSize);
pagerlist.NextPage();
CurrentPage = (int)ViewState["PageIndex"];//获得当前页索引
PageCount = (int)ViewState["PageCount"];//获得总页数
string cmd = e.CommandName;
//判断cmd，以判定翻页方向
switch (cmd)
{
case "prev"://上一页
if (CurrentPage > 0) CurrentPage--;
break;
case "next":
if (CurrentPage < (PageCount - 1)) CurrentPage++;//下一页
break;
case "first"://第一页
CurrentPage = 0;
break;
case "last"://最后一页
CurrentPage = PageCount - 1;
break;
}
pagerlist.GotoPage(CurrentPage);//页面跳转
ViewState["PageIndex"] = CurrentPage;//获得当前页
GridViewBind();
this.GridView1.DataSource = pagerlist;
this.GridView1.DataBind();
}
#endregion
