dataGridView和bindingNavigator相结合的例子

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace WindowsApplication8
{
    public partial class Form1 : Form
    {
        private BindingSource mybindingsource = new BindingSource();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string connstring = "database=DataReadertest;server=server;uid=sa;pwd=msnrl;";
            SqlConnection conn = new SqlConnection(connstring);
            conn.Open();
            string sqlstr="select * from DrTest";
            DataSet ds = new DataSet();
            SqlDataAdapter da = new SqlDataAdapter(sqlstr,conn);
            da.Fill(ds);
            mybindingsource.DataSource = ds.Tables[0];
            dataGridView1.DataSource = ds.Tables[0];
            this.bindingNavigator1.BindingSource = mybindingsource;
     
        }

        private void bindingNavigatorMoveFirstItem_Click(object sender, EventArgs e)
        {
    
            dataGridView1.ClearSelection();
            dataGridView1.Rows[0].Selected = true;
            dataGridView1.FirstDisplayedScrollingRowIndex = 0;
        }

        private void bindingNavigatorMovePreviousItem_Click(object sender, EventArgs e)
        {

            int rowindx = (dataGridView1.SelectedRows[0].Index - 1 + dataGridView1.RowCount) % dataGridView1.RowCount;
            dataGridView1.ClearSelection();
           
            dataGridView1.Rows[rowindx].Selected = true;
           
            dataGridView1.FirstDisplayedScrollingRowIndex = dataGridView1.SelectedRows[0].Index;
           
        }

        private void bindingNavigatorMoveNextItem_Click(object sender, EventArgs e)
        {
     
           
            int rowIndex = (dataGridView1.SelectedRows[0].Index + 1) % dataGridView1.RowCount;
            dataGridView1.ClearSelection();
            dataGridView1.Rows[rowIndex].Selected = true;
            dataGridView1.FirstDisplayedScrollingRowIndex = rowIndex;

           
        }

        private void bindingNavigatorMoveLastItem_Click(object sender, EventArgs e)
        {
      
            dataGridView1.ClearSelection();
            dataGridView1.Rows[dataGridView1.RowCount - 2].Selected = true;
            dataGridView1.FirstDisplayedScrollingRowIndex = dataGridView1.RowCount - 1;
        }
    }
}