In this blog we will find Duplicate Records present in
ArrayList and display those to a listbox.
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.Collections;
namespace
Duplicate_Records_in_ArrayList
{
public partial class Form1 : Form
{
public
Form1()
{
InitializeComponent();
}
private
void Form1_Load(object
sender, EventArgs e)
{
var
list = new ArrayList
{ "Raj", "Raj",
"Ravi", "Rahul",
"Ravi", "Rohan",
"Rajesh", "Rahul"
};
var
clone =
(from
string item in
list select item).GroupBy(s => s).Select(
group => new { Word = group.Key, Count = group.Count()
}).Where(x => x.Count >=
2);
foreach
(var duplicate in
clone)
{
listBox1.Items.Add(duplicate.Word);
}
}
}
}
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