Insert update delete navigate using textbox and display result in listview

Satyapriya Nayak
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Insert update delete navigate.rar

In this blog we will know how to Insert update delete navigate using textbox and display result in listview.

App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="dsn" value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=..\EMP.mdb" />
</appSettings>
</configuration>

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace Insert_update_delete_navigate
{
    public partial class Form1 : Form
    {
        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        OleDbDataAdapter oledbda;
        string str;
        DataSet ds;
        byte flag;
        BindingManagerBase bm;
        DataTable dt;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            listView1.Columns.Add("ID", 70, HorizontalAlignment.Center);
            listView1.Columns.Add("NAME", 70, HorizontalAlignment.Center);
            listView1.View = View.Details;
            listView1.GridLines = true;
            listView1.BackColor = Color.Aqua;
            listView1.ForeColor = Color.Blue;

            OleDbConnection con = new OleDbConnection(ConnectionString);
            con.Open();
            str = "select * from student";
            com = new OleDbCommand(str, con);
            oledbda = new OleDbDataAdapter(com);
            ds = new DataSet();
            oledbda.Fill(ds, "student");
            textBox1.DataBindings.Add("Text", ds, "student.id");
            textBox2.DataBindings.Add("Text", ds, "student.name");
            bm = this.BindingContext[ds, "student"];
            con.Close();
            listviewdisplay();
        }

        private void listviewdisplay()
        {
            listView1.Items.Clear();
            OleDbConnection con = new OleDbConnection(ConnectionString);
            con.Open();
            str = "select * from student";
            com = new OleDbCommand(str, con);
            oledbda = new OleDbDataAdapter(com);
            ds = new DataSet();
            oledbda.Fill(ds, "student");
            con.Close();
            dt = ds.Tables["student"];
            int i;
            for (i = 0; i <= dt.Rows.Count - 1; i++)
            {
                listView1.Items.Add(dt.Rows[i].ItemArray[0].ToString());
                listView1.Items[i].SubItems.Add(dt.Rows[i].ItemArray[1].ToString());
            }
        }

        private void btn_first_Click(object sender, EventArgs e)
        {
            bm.Position = 0;
        }

        private void btn_next_Click(object sender, EventArgs e)
        {
            bm.Position += 1;
        }

        private void btn_previous_Click(object sender, EventArgs e)
        {
            bm.Position -= 1;
        }

        private void btn_last_Click(object sender, EventArgs e)
        {
          bm.Position = bm.Count - 1;
        }

        private void btn_add_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            textBox2.Text = "";
            textBox1.Focus();
            flag = 1;
        }

       private void btn_modify_Click(object sender, EventArgs e)
        {
            flag = 2;
        }

        private void btn_save_Click(object sender, EventArgs e)
        {
            if (flag == 1)
            {
                OleDbConnection con = new OleDbConnection(ConnectionString);
                con.Open();
                str = "insert into student(id,name) values (@id,@name)";
                com = new OleDbCommand(str, con);
                com.Parameters.AddWithValue("@sid", textBox1.Text);
                com.Parameters.AddWithValue("@sname", textBox2.Text);
                com.ExecuteNonQuery();
                con.Close();
                MessageBox.Show("Records Successfuly Inserted");
                listviewdisplay();
            }

          if (flag == 2)
            {
                OleDbConnection con = new OleDbConnection(ConnectionString);
                con.Open();
                str = "update student set name='" + textBox2.Text.Trim() + "' where id='" + textBox1.Text.Trim() + "'";
                com = new OleDbCommand(str, con);
                com.ExecuteNonQuery();
                con.Close();
                MessageBox.Show("Records Successfuly Updated");
                listviewdisplay();
            }
        }

private void btn_delete_Click(object sender, EventArgs e)
{

            DialogResult result;
            result = MessageBox.Show("Are You sure want to Delete?", "Conformation", MessageBoxButtons.YesNo);
            if (result == System.Windows.Forms.DialogResult.Yes)
            {
                OleDbConnection con = new OleDbConnection(ConnectionString);
                str = "delete from student where id=@id";
                com = new OleDbCommand(str, con);
                com.Parameters.AddWithValue("@id", textBox1.Text);
                con.Open();
                com.ExecuteNonQuery();
                MessageBox.Show("Records Successfuly Deleted");
                listviewdisplay();
                con.Close();
            }
            else
            {
                MessageBox.Show("No action");
            }

        }
    }
}