Reverse Number in Windows Store App

In this article you will learn about reversing numbers. A number with the most significant digit becoming the least significat digit and vice versa is called a reversed number. To implement the reverse number logic in a Windows Store app I use a TextBox that accepts the number as input and a Textblock to print the output and a button click for the logic.

Use the following procedure to make the reverse number app.

Step 1

First of all you have to create a new Windows Store Application.

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

Step 2

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

<Page

x:Class="reverse_number_app.MainPage"

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

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

xmlns:local="using:reverse_number_app"

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

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

mc:Ignorable="d">

<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

</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;

namespace reverse_number_app

{

public sealed partial class MainPage : Page

{

public MainPage()

{

this.InitializeComponent();

}

protected override void OnNavigatedTo(NavigationEventArgs e)

{

}

private void button1_Click(object sender, RoutedEventArgs e)

{

int num = 0, r, rev=0;

num = Convert.ToInt32(textbox1.Text);

while (num > 0)

{

r = num % 10;

num = num / 10;

rev = rev * 10 + r;

}

text1.Text = rev.ToString();

}

Step 4

Now Run your app.