C#调用存储过程实现分页(个人代码笔记)

分页的存储过程：
drop proc LoadPageMain

create Proc LoadPageMain
@pageIndex int,
@pageSize int,
@count int out
as
select top(@pageSize) * from dbo.MyStudent
where Fid not in
(
select top(@pageSize*(@pageIndex-1)) Fid
from dbo.MyStudent
order by Fid
)
order by Fid
select @count=COUNT(1) from dbo.MyStudent

DAL层调用分页存储过程：

public List<Model.MyStudent> getPagedList(int pageIndex, int pageSize, out int count)
{
List<Model.MyStudent> modelList = new List<Model.MyStudent>(); //创建最终要返回的model 的 List集合对象

string connStr = "server=.;database=CCDB;uid=sa;pwd=130988825";

using (SqlConnection conn = new SqlConnection(connStr))
{
using (SqlCommand cmd = new SqlCommand()) //创建command对象
{
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure; 设置command 对象的type属性
cmd.CommandText = "LoadPageMain"; //指定相应的存储过程

cmd.Parameters.Add(new SqlParameter("@pageIndex",pageIndex)); //为存储过程添加参数
cmd.Parameters.Add(new SqlParameter("@pageSize",pageSize));
SqlParameter outCount = new SqlParameter("@count",SqlDbType.Int); //创建将要输出的参数，并添加到参数集合中
outCount.Direction = ParameterDirection.Output;
cmd.Parameters.Add(outCount);

conn.Open();

using (SqlDataAdapter sda = new SqlDataAdapter(cmd)) //用SqlDataReader 对象回去数据，不用担心conn断开的问题
{
DataSet ds = new DataSet();
sda.Fill(ds); //获取存储过程返回的数据集

count = (int)outCount.Value; // 注意：获取 存储过程输出的参数值

foreach (DataRow row in ds.Tables[0].Rows )
{
Model.MyStudent model = new Model.MyStudent();

model.FName = Convert.ToString(row[1]);
model.FAge = Convert.ToInt32(row[2]);
model.FGender = Convert.ToString(row[3]);
model.FMath = row[4] is DBNull?null: (int?)Convert.ToInt32(row[4]);
model.FEnglish = Convert.ToInt32(row[5]);
model.FClassId = Convert.ToInt32(row[6]);
model.FBirthday = Convert.ToDateTime(row[7]);

modelList.Add(model);
}
}

}
}
return modelList;
}

aspx页面输出分页的方式： 在后台拼接字符串（数据输出的、分页连接的）输出到前台，后台通过前台传来的pageIndex、pageSize参数来动态改变数据

protected void Page_Load(object sender, EventArgs e)
{
int count = 0;
int pageIndex = Request["pageIndex"]==null?1:Convert.ToInt32(Request["pageIndex"]);
int pageSize = Request["pageSize"]==null?20:Convert.ToInt32(Request["pageSize"]);

BLL.MyStudent bll_mystudent = new BLL.MyStudent();
List<Model.MyStudent> modelList= bll_mystudent.getPagedList(pageIndex, pageSize, out count);

StringBuilder sb = new StringBuilder();
for (int i = 0; i < modelList.Count; i++)
{
sb.Append(string.Format("<tr> <td>" + modelList[i].FName + "</td> <td>" + modelList[i].FAge + "</td> <td>" + modelList[i].FGender + "</td> <td>" + modelList[i].FMath + "</td> <td>" + modelList[i].FEnglish + "</td> <td>" + modelList[i].FClassId + "</td> <td>" + modelList[i].FBirthday + "</td> <td>修改 删除 详情</td> </tr>"));
}
trBody = sb.ToString();

int pageCount=(count-1)/pageSize+1;
StringBuilder sbFY = new StringBuilder();
sbFY.Append("<a href='？pageSize=20&pageIndex=1'>上一页</a> ");
for (int i = 0; i < pageCount; i++)
{
sbFY.Append(string.Format("<a href='?pageSize=20&pageIndex={0}'>{0}</a>   ", i, i));
}
sbFY.Append("<a href='？pageSize=20&pageIndex=1'>下一页</a> ");
strFY = sbFY.ToString();
}