c#中调用存储过程返回表的分页数据及总记录个数

方法1：

本存储过程是用来分页显示sys.all_objects中的记录，调用本存储过程需要传递两个参数@pageSize是每页的记录数，@pageIndex的页码，存储过程返回两个datetable，第一个datatable是分页的datatable，第2个datatable是存储总记录个数。

if exists(select * from sys.all_objects where type='p' and name='usersp_p4')
drop procedure usersp_p4
go
create procedure usersp_p4
@pageSize int,@pageIndex int
as
declare @startRowIndex int,@endRowIndex int,@pageCount int,@rowCount int;
set @rowCount=(select COUNT(*) from sys.all_objects);
if @pageSize<=0
begin
set @pageSize=10
end
if @pageIndex<=0
begin
set @pageIndex=1
end
if @rowCount % @pageSize=0
begin
set @pageCount=@rowCount/@pageSize;
end
else
begin
set @pageCount=@rowCount/@pageSize+1;
end
set @startRowIndex=(@pageIndex-1)*@pageSize+1;
set @endRowIndex=@pageIndex*@pageSize;
select * from (select (ROW_NUMBER() over (order by name)) rownumber, * from sys.all_objects) t where rownumber>=@startRowIndex and rownumber<=@endRowIndex;
select @rowCount;

go

在c#中调用该存储过程
string strCon = "data source=.;initial catalog=test;user id=sa;password=sa;";
using (SqlConnection conn = new SqlConnection(strCon))
{
SqlCommand com = new SqlCommand("usersp_p4", conn);
com.CommandType = CommandType.StoredProcedure;
SqlParameter[] sqlparas={
new SqlParameter("@pageSize",SqlDbType.Int),
new SqlParameter("@pageIndex",SqlDbType.Int)
};
sqlparas[0].Value = 10;
sqlparas[1].Value = 2;
com.Parameters.AddRange(sqlparas);
SqlDataAdapter oad = new SqlDataAdapter(com);
DataSet ds = new DataSet();

oad.Fill(ds);//ds里面存着了两张表，一张表存储分页的datatable，另一页存储的是用来存储总页数的datatable，用来存储页数的datatable表格中只有一行一列
int recordCount = Convert.ToInt32( ds.Tables[1].Rows[0][0]);

}

方法2：基本实现方式和上面是一样的，不同的是存储过程携带三个参数，第三个参数是输出参数，存储过程返回的是一个datatable而不是dataset
if exists(select * from sys.all_objects where type='p' and name='usersp_p5')
drop procedure usersp_p5
go
create procedure usersp_p5
@pageSize int,@pageIndex int,@rowCount int out
as
declare @startRowIndex int,@endRowIndex int,@pageCount int;
set @rowCount=(select COUNT(*) from sys.all_objects);
if @pageSize<=0
begin
set @pageSize=10
end
if @pageIndex<=0
begin
set @pageIndex=1
end
if @rowCount % @pageSize=0
begin
set @pageCount=@rowCount/@pageSize;
end
else
begin
set @pageCount=@rowCount/@pageSize+1;
end
set @startRowIndex=(@pageIndex-1)*@pageSize+1;
set @endRowIndex=@pageIndex*@pageSize;
select * from (select (ROW_NUMBER() over (order by name)) rownumber, * from sys.all_objects) t where rownumber>=@startRowIndex and rownumber<=@endRowIndex;

go

C#中调用,其中输出参数需要设置该参数的Direction属性为ParameterDirection.Output。执行完存储过程，再读取该参数的value属性就可以获取返回的参数值。
string strCon = "data source=.;initial catalog=test;user id=sa;password=sa;";
using (SqlConnection conn = new SqlConnection(strCon))
{
SqlCommand com = new SqlCommand("usersp_p5", conn);
com.CommandType = CommandType.StoredProcedure;
SqlParameter[] sqlparas={
new SqlParameter("@pageSize",SqlDbType.Int),
new SqlParameter("@pageIndex",SqlDbType.Int),
new SqlParameter("@rowCount",SqlDbType.Int)
};
sqlparas[0].Value = 10;
sqlparas[1].Value = 2;
sqlparas[2].Direction = ParameterDirection.Output;//这是通过传递输出参数得到记录数
com.Parameters.AddRange(sqlparas);
SqlDataAdapter oad = new SqlDataAdapter(com);
DataTable dt = new DataTable();
oad.Fill(dt);//结果只有一张表
int recordCount =Convert.ToInt32( sqlparas[2].Value);
}