How to Modify selected item in ListView in C#

In this article I will explain you how to modify select item in listview and update.


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.SqlClient;
namespace ListViewModify
{
    public partial class Form1 : Form
    {
stringcon = “Data Source=PC-Name;Initial Catalog=Northwind;Integrated Security=True”;
        public Form1()
        {
            InitializeComponent();
        }
        private voidForm1_Load(object sender, EventArgs e)
        {
            listView1.GridLines = true;
            listView1.View = View.Details;
            //Add Column Header
            listView1.Columns.Add(“Employee ID”, 150);
            listView1.Columns.Add(“First Name”, 150);
            listView1.Columns.Add(“Last Name”, 150);
           
        }
        private voidbutton2_Click(object sender, EventArgs e)
        {
            // Chnage sql query and table name
  string sql = “Select Employeeid,FirstName,LastName from Employees”;
            SqlConnection cnn = new SqlConnection(con);
            cnn.Open();
            SqlCommand cmd=new SqlCommand(sql,cnn);
            SqlDataReader Reader = cmd.ExecuteReader();
            listView1.Items.Clear();
            while (Reader.Read())
            {
ListViewItem lv = new ListViewItem(Reader.GetInt32(0).ToString());
                lv.SubItems.Add(Reader.GetString(1));
                lv.SubItems.Add(Reader.GetString(2));
                listView1.Items.Add(lv);
            }
            Reader.Close();
            cmd.Dispose();
            cnn.Close();
             
        }
        int sl = 0;
        //retrive select item in listview and store in textbox3 and textbox4
      private void listView1_SelectedIndexChanged(object sender, EventArgse)
        {
            var selectitem = listView1.SelectedItems;
           
           sl = Convert.ToInt32(selectitem[0].Text);
              
        ListViewItem lvitem = listView1.FindItemWithText(Convert.ToString(sl));
            if (lvitem != null)
            {
                   textBox3.Text=lvitem.SubItems[1].Text;
                   textBox4.Text = lvitem.SubItems[2].Text;
            }
        }
        private voidbutton4_Click(object sender, EventArgs e)
        {
            //update by searching for text in subitmes.
     ListViewItemlvitem = listView1.FindItemWithText( Convert.ToString(sl));
            if(lvitem!=null)
            {
                lvitem.SubItems[1].Text = textBox3.Text ;
                  lvitem.SubItems[2].Text = textBox4.Text ;
                  listView1.Items[sl-1].BackColor  = Color.BlueViolet;
    }
        }
      
    }

}

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