c#在winform中用DataGridView实现分页效果

 

 

 

public partial class Form11 : Form
    {
        public Form11()
        {
            InitializeComponent();
        }

 

        private int Inum = 1;  //行号，规定其索引初始值为1
        int pagesize = 4;
        int allCount =0;
        int pagecount = 0;

             
        private void Form11_Load(object sender, EventArgs e)
        {
            using(SqlConnection connection = new SqlConnection("server=数服务器名称;uid=sa;pwd=sa;database=数据库名"))
            {

                SqlDataAdapter da = new SqlDataAdapter("select * from tb_Land", connection);

                DataTable dt = new DataTable();

                da.Fill(dt);

 

                allCount = dt.Rows.Count;    //获取数据表中记录的个数
                

                pagecount = allCount  % pagesize;   //页数 = 总数/显示的行数

 

                //只能显示一页,判断是否是整除
                if (pagecount == 0)
                {
                    pagecount =allCount  / pagesize;
                }
                else
                {
                    pagecount = allCount / pagesize + 1;
                }

 

                this.label1.Text = "共" + pagecount.ToString() + "页";           

     
                show(1,4);                                                              //分页显示记录

                // this.label2.Text = "当前第" + Inum.ToString() + "页";
            }
        }

 

        ///

        /// 分页显示数据表中的信息
        ///

        ///
        ///
        private void show(int start,int end)
        {
            SqlConnection connection = new SqlConnection("server=服务器名称;uid=sa;pwd=sa;database=数据库名称");

            SqlDataAdapter das = new SqlDataAdapter("select top "+pagesize+" * from tb_Land where Id not in (select top "+pagesize*(Inum-1)+" Id from

tb_Land)",connection);                    //sql语句

            DataSet ds = new DataSet();  

 

            //显示指定范围的记录
            das.Fill(ds,"one");

            this.dataGridView1.DataSource = ds.Tables["one"].DefaultView;   //绑定显示数据       
            ds = null;
        }

        //第一页
        private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            Inum = 1;
            show(Inum, pagesize);
        }

 

        //末尾页
        private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            Inum = pagecount;
            show(Inum-1, pagesize);
        }

 

        //下一页
        private void linkLabel3_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            Inum++;
            if (Inum <= pagesize)              //如果没有超出记录行数
            {
                show(Inum, pagesize);
            }
            else
            {
                MessageBox.Show("现已是最后一页记录");
                Inum = pagecount-1;     更改为       Inum = pagecount;
                return;
            }
        }

 

        //上一页
        private void linkLabel4_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
       {        
            Inum--;
            if (Inum > 0)                     //如果当前不是首记录
            {
                show(Inum, pagesize);                 //显示上一页记录
            }
            else
            {
                MessageBox.Show("现已是第一页记录");
                Inum = 1;                       

                return;
            }
        }

        
    }
}

 

当前显示的页数，实现的有点小问题。可能有些细节上的小问题，希望大家多提建议！（感谢大家提的建议，现已更改）