Remove Duplicate Element of an Array in Windows Store App

Introduction

In my previous article I have described how to separate duplicate and non-duplicate element of array and here I describe how to remove duplicate elements of an array. When an array contains more than one of the same element then that element is called a duplicate element and I want to store each element only once.

Use the following procedure to create it.

Step 1

First of all you must create a new Windows Store Application.

Open Visual Studio 2012
"File" -> "New" -> "Project..."
Choose "Template" -> "Visual C#" -> "Window Store app"
Choose "Blank App (XAML)" then rename the application

Step 2

Write the following XAML code in "Mainpage.Xaml" (that is available in Solution Explorer):

<Page

x:Class="remove_duplicate_element_of_an_array.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local="using:remove_duplicate_element_of_an_array"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d">

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

</Grid>

</Page>

Step 3

Now write the following C# code for the button within "Mainpage.Xaml.cs".

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using Windows.Foundation;

using Windows.Foundation.Collections;

using Windows.UI.Xaml;

using Windows.UI.Xaml.Controls;

using Windows.UI.Xaml.Controls.Primitives;

using Windows.UI.Xaml.Data;

using Windows.UI.Xaml.Input;

using Windows.UI.Xaml.Media;

using Windows.UI.Xaml.Navigation;

using System.Collections;

using System.Collections.Generic;

namespace remove_duplicate_element_of_an_array

{

public sealed partial class MainPage : Page

{

public MainPage()

{

this.InitializeComponent();

}

protected override void OnNavigatedTo(NavigationEventArgs e)

{

int[] arr = { 14, 14, 65, 7, 8, 7, 47, 14, 7, 8 };

for (int i = 0; i < arr.Length; i++)

{

text1.Text += arr[i] + " ";

}

int[] arr1 = arr.Distinct().ToArray();

for (int i = 0; i < arr1.Length; i++)

{

text2.Text += arr1[i] + " ";

}

Step 4

Now Run your app.