In this article I describe powers of numbers. I think we are all familiar with powers of numbers in mathematics. But now you can learn about them in a programming language. So let us first all understand powers of numbers.
A number has two things, a base and an exponent. An exponent tells you how many times the base is used as a factor and their product is called the power of the number.
Use the following procedure to create a power app.
Step 1
First of all you have to create a New Window 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="Power_app.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Power_app"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="Red">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="233*"/>
<ColumnDefinition Width="142*"/>
<ColumnDefinition Width="204*"/>
<ColumnDefinition Width="787*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="78*"/>
<RowDefinition Height="49*"/>
<RowDefinition Height="43*"/>
<RowDefinition Height="40*"/>
<RowDefinition Height="38*"/>
<RowDefinition Height="520*"/>
</Grid.RowDefinitions>
<TextBlock Text="Power app" Foreground="White" FontSize="20" FontWeight="ExtraBold" Grid.Column="2" Grid.Row="1" Grid.ColumnSpan="2"></TextBlock>
<TextBlock Text="Enter Number" Foreground="White" FontSize="15" FontWeight="ExtraBold" Grid.Column="1" Grid.Row="2"></TextBlock>
<TextBox x:Name="textbox1" Grid.Column="2" Grid.Row="2" Width="200" HorizontalAlignment="Left" VerticalAlignment="Top" Height="32" ></TextBox>
<TextBlock Text="Enter Power" Foreground="White" FontSize="15" FontWeight="ExtraBold" Grid.Column="1" Grid.Row="3"></TextBlock>
<Button x:Name="button1" Content="Click" Click="Button1_Click" Grid.Column="2" Grid.Row="4" HorizontalAlignment="Left" VerticalAlignment="Bottom" Background="Yellow" Foreground="Black" Width="120" Height="38" />
<TextBox x:Name="textbox2" Grid.Column="2" Grid.Row="3" Width="200" HorizontalAlignment="Left" VerticalAlignment="Top" Height="32" ></TextBox>
<TextBlock x:Name="text1" Foreground="White" FontSize="15" FontWeight="ExtraBold" Grid.Column="3" Grid.Row="3" Width="200" HorizontalAlignment="Left" ></TextBlock>
</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 Power_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, pow = 0;
int sum = 1;
num = Convert.ToInt32(textbox1.Text);
pow = Convert.ToInt32(textbox2.Text);
for (int i = 1; i <= pow; i++)
{
sum = sum * num;
}
text1.Text = sum.ToString();
}
}
}
Step 4
Run your app