asp.net之DataList的使用方法，及分页（存储过程创建），编辑，更新，删除

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if(!IsPostBack)
            BindProduct("1");
    }

    private void BindProduct(string pageindex)
    {
        string str = ConfigurationManager.ConnectionStrings["studentCnn"].ConnectionString;
        using (SqlConnection sqlCnn = new SqlConnection(str))
        {
            SqlDataAdapter da = new SqlDataAdapter("sp_Student_Select_by_Page_rowNumber", sqlCnn);
            da.SelectCommand.Parameters.AddWithValue("@pageIndex", pageindex);
            da.SelectCommand.Parameters.Add("@pageCount", SqlDbType.Int).Direction = ParameterDirection.Output;
            da.SelectCommand.Parameters.AddWithValue("@pageSize", 2);
            da.SelectCommand.CommandType = CommandType.StoredProcedure;
            DataSet ds = new DataSet();
            da.Fill(ds);
            this.DataList1.DataSource = ds.Tables[0].DefaultView;
            this.DataList1.DataBind();
            this.HiddenField1.Value = pageindex;
            this.HiddenField2.Value = da.SelectCommand.Parameters["@pageCount"].Value.ToString();

        }
    }     //绑定数据
    protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
    {
        if(e.CommandName == "buy")
            Response.Write(e.CommandArgument.ToString());
    }
    protected void DataList1_EditCommand(object source, DataListCommandEventArgs e)
    {
        this.DataList1.EditItemIndex = e.Item.ItemIndex;
        this.BindProduct(this.HiddenField1.Value);
    }         //编辑
    protected void DataList1_CancelCommand(object source, DataListCommandEventArgs e)
    {
        this.DataList1.EditItemIndex = -1;
        this.BindProduct(this.HiddenField1.Value);
    }           //取消
    protected void DataList1_UpdateCommand(object source, DataListCommandEventArgs e)
    {
        string name = (e.Item.FindControl("TextBox1") as TextBox).Text;
        string sex = (e.Item.FindControl("TextBox2") as TextBox).Text;
        string age = (e.Item.FindControl("TextBox3") as TextBox).Text;
        string str = ConfigurationManager.ConnectionStrings["studentCnn"].ConnectionString;
        using (SqlConnection sqlCnn = new SqlConnection(str))
        {
            SqlCommand sqlcmm = sqlCnn.CreateCommand();
            sqlcmm.CommandText = "update student set sname=@sname,sex=@sex,age=@age where sid=@sid";
            sqlcmm.Parameters.AddWithValue("@sname", name);
            sqlcmm.Parameters.AddWithValue("@sex", sex);
            sqlcmm.Parameters.AddWithValue("@age", age);
            sqlcmm.Parameters.AddWithValue("@sid", e.CommandArgument);
            sqlCnn.Open();
            sqlcmm.ExecuteNonQuery();

        }
        this.DataList1.EditItemIndex = -1;
        this.BindProduct(this.HiddenField1.Value);
    } //更新
    protected void DataList1_DeleteCommand(object source, DataListCommandEventArgs e)
    {
        string str = ConfigurationManager.ConnectionStrings["studentCnn"].ConnectionString;
        using (SqlConnection sqlCnn = new SqlConnection(str))
        {
            SqlCommand sqlcmm = sqlCnn.CreateCommand();
            sqlcmm.CommandText = "delete from student where sid=@sid";
            sqlcmm.Parameters.AddWithValue("@sid", e.CommandArgument);
            sqlCnn.Open();
            sqlcmm.ExecuteNonQuery();
        }
        this.BindProduct(this.HiddenField1.Value);
    }    //删除
    protected void Button6_Click(object sender, EventArgs e)
    {
        this.BindProduct("1");
    }  //首页
    protected void Button9_Click(object sender, EventArgs e)
    {
        int count = Convert.ToInt32(this.HiddenField2.Value);
        this.BindProduct(count.ToString());
    }  //尾页
    protected void Button7_Click(object sender, EventArgs e)
    {
        int index = Convert.ToInt32(this.HiddenField1.Value);
        if (index > 1)
            index--;
        this.BindProduct(index.ToString());
    }  //上一页
    protected void Button8_Click(object sender, EventArgs e)
    {
        int index = Convert.ToInt32(this.HiddenField1.Value);
        int count = Convert.ToInt32(this.HiddenField2.Value);
       
        if (index < count)
            index++;
        this.BindProduct(index.ToString());
    }
}   //下一页

存储过程的创建：

ALTER PROCEDURE sp_Student_Select_by_Page_rowNumber
 @pageSize int,  --每页记录数量
 @pageCount int output,  --总页数
 @pageIndex int  --当前页索引号

 
AS
BEGIN
declare @totalRecords int
select @totalRecords = count(sid) from student
if(@totalRecords % @pageSize = 0)
 set @pageCount = @totalRecords / @pageSize;
else
 set @pageCount = @totalRecords / @pageSize +1;
with temp as (select row_number() over (order by sid) as id,* from student)
select * from temp where id between (@pageIndex -1)*@pageSize +1 and @pageIndex * @pageSize
return @totalRecords
end