UWP Development, Screen Finishing

UWP (Universal Windows Platform) development is a way to build applications targeting Microsoft’s Windows 10 platform. UWP is designed as a framework that can run on various devices, such as mobile, tablet, and PC, providing user interface (UI), data models, and integrated features of Windows. This course covers various topics about the process of practically finishing the screen of a UWP application.

1. Understanding UWP Screen Components

The screen composition of a UWP application is made up of various UI controls. These UI controls provide ways for users to interact with the application. In UWP, the following key controls can be used:

  • Button: Used to create a clickable button.
  • TextBox: A text field for user input.
  • ListView: Can list data in a list format.
  • Grid: Used to arrange UI elements in a grid manner.
  • StackPanel: Arranges child elements vertically or horizontally.

2. Building UI with XAML

The UI of a UWP application is written in XAML (Extensible Application Markup Language), allowing the definition of the application’s structure and layout. Below is a simple example of XAML.

<Page
    x:Class="MyApp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:MyApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <Grid>
        <StackPanel>
            <TextBlock Text="Hello, UWP!" FontSize="30" HorizontalAlignment="Center" />
            <Button Content="Click Me" Click="Button_Click" />
            <TextBox x:Name="InputBox" Width="300" />
        </StackPanel>
    </Grid>
</Page>

The above example sets up a simple initial screen for a UWP application. It includes a text block, button, and text box, providing functionality for user input.

3. Event Handling and User Interaction

To handle user interaction in a UWP application, events must be defined. Let’s look at how to handle events such as button clicks. The C# code that handles the button click event in the above XAML example is as follows.

private void Button_Click(object sender, RoutedEventArgs e)
{
    string userInput = InputBox.Text;
    // Add necessary logic
    // For example, display the user's input
    MessageBox.Show($"User input: {userInput}");
}

In the click event, the value from the text box is retrieved, and information is provided to the user via a message box.

4. Optimizing Screen Layout

It is important to optimize the layout of a UWP application, considering various devices and resolutions. UWP supports Adaptive Triggers, allowing different layouts to be applied based on screen resolution or orientation. Below is a simple example of an Adaptive Trigger.

<VisualStateManager.VisualStateGroups>
    <VisualStateGroup x:Name="AdaptiveStates">
        <VisualState x:Name="NarrowState">
            <Storyboard>
                <DoubleAnimation Storyboard.TargetName="MyGrid" Storyboard.TargetProperty="Width" To="300" Duration="0:0:0.5" />
            </Storyboard>
        </VisualState>
        <VisualState x:Name="WideState">
            <Storyboard>
                <DoubleAnimation Storyboard.TargetName="MyGrid" Storyboard.TargetProperty="Width" To="600" Duration="0:0:0.5" />
            </Storyboard>
        </VisualState>
    </VisualStateGroup>
</VisualStateManager.VisualStateGroups>

The above code is an example of applying different animation effects depending on whether the screen width is wide or narrow.

5. Improving User Experience (UX)

Here are a few tips for improving user experience.

  • Consistent Colors and Fonts: Use the same fonts and colors in the user interface to create a unified feel.
  • Provide Feedback: Use effects or message boxes that appear after button clicks to provide feedback to users.
  • Consider Accessibility: Take into account elements for color-blind and visually impaired users to ensure usability for a diverse audience.

6. Preparing for Application Deployment

Once the screen is complete, the final step is to prepare the application for deployment. UWP applications can be deployed to the Windows Store.

  1. Build the project in Visual Studio.
  2. Configure the settings for app packaging.
  3. Log in with a Windows Store developer account and upload the app.

7. Bonus: Complete Example Application

Below is the complete code for a simple UWP application. This example receives input from the user and displays the input content when the button is clicked.

<Page
    x:Class="MyApp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:MyApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <Grid x:Name="MyGrid">
        <StackPanel>
            <TextBlock Text="Hello, UWP!" FontSize="30" HorizontalAlignment="Center" />
            <TextBox x:Name="InputBox" Width="300" />
            <Button Content="Click Me" Click="Button_Click" />
        </StackPanel>
    </Grid>
</Page>
private void Button_Click(object sender, RoutedEventArgs e)
{
    string userInput = InputBox.Text;
    MessageBox.Show($"User input: {userInput}");
}

The above example application allows for a multifaceted understanding of the basics of screen composition in UWP applications through basic UI and event handling. By appropriately utilizing the various techniques and concepts discussed here, it is possible to create a more complete application.

Conclusion

UWP development offers the advantage of easy usability through various features and UI controls. It is hoped that this course enables you to understand and utilize the fundamental techniques and examples necessary to complete the screen composition of a UWP application.

Every aspect of UWP development should prioritize the user experience, and it is important to continuously improve the application through various user feedbacks. After the project is completed, create a more advanced application through user communication and ongoing updates.

UWP Development, Specifying Initial Values for Rows and Columns

UWP (Universal Windows Platform) development is a powerful way to create applications for Windows 10 and later versions. UWP apps can run on a variety of devices and provide useful tools and libraries needed for developing these apps. In this article, we will take a closer look at specifying default values for rows and columns in UWP development.

1. Understanding the Concepts of Rows and Columns

Rows and columns are two important elements that organize data. In particular, in UWP, it is crucial to specify rows and columns when placing elements on the screen using layout controls like Grid or StackPanel. Grid is the most commonly used layout control, allowing for a precise arrangement of UI elements through rows and columns.

2. Using Grid

Let’s explore the process of specifying default values for rows and columns and designing the UI using Grid. Grid is defined using XAML, and the size of each row and column can also be adjusted individually.

2.1. Creating a Basic Grid

<Grid Width="400" Height="300">
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
        <RowDefinition Height="2*" />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="2*" />
        <ColumnDefinition Width="*" />
    </Grid.ColumnDefinitions>

    <TextBlock Grid.Row="0" Grid.Column="0" Text="Row 0, Column 0" />
    <TextBlock Grid.Row="0" Grid.Column="1" Text="Row 0, Column 1" />
    <TextBlock Grid.Row="1" Grid.Column="0" Text="Row 1, Column 0" />
    <TextBlock Grid.Row="1" Grid.Column="1" Text="Row 1, Column 1" />
</Grid>

In the example above, we created a Grid with 2 rows and 2 columns. The first row is divided into two columns, and the second row is also divided into two columns. Each TextBlock is positioned in its respective row and column.

2.2. Adjusting the Size of Rows and Columns

In Grid, the size of rows and columns can be adjusted using * and Auto. * allows for resizing in a variable ratio, while Auto adjusts the size to fit the content of the element.

<Grid.RowDefinitions>
    <RowDefinition Height="Auto" />
    <RowDefinition Height="2*" />
</Grid.RowDefinitions>

In the code above, the height of the first row is adjusted automatically, while the height of the second row is twice that of the first row.

2.3. Placing Various Default Values

In UWP, you can specify default values for rows and columns in various ways beyond just Grid. You can align elements vertically or horizontally using StackPanel and make the UI more attractive through margins and padding.

<StackPanel Orientation="Vertical">
    <TextBlock Text="First Content" Margin="10" />
    <TextBlock Text="Second Content" Margin="10" />
</StackPanel>

3. Integrating XAML and C# Code

In UWP development, XAML and C# code are integrated and used together, allowing you to implement logic in C# for the UI designed in XAML. This makes dynamic data binding and event handling easier.

3.1. Basic Data Binding

Using data binding, you can connect XAML elements to C# data sources to update the UI dynamically. Here is a basic data binding example.

<TextBlock Text="{Binding Name}" />

In the code above, the Name property is defined in the ViewModel and displayed in the UI through binding.

3.2. Setting Up ViewModel and Model

public class ViewModel
{
    public string Name { get; set; } = "John Doe";
}

3.3. Connecting ViewModel in XAML

<Page.DataContext>
    <local:ViewModel />
</Page.DataContext>

4. Implementing Responsive Design

UWP supports responsive design that automatically adjusts to various screen sizes and ratios. To define different views, it is recommended to use Visual State Manager and AdaptiveTrigger, following a structure like the one below.

<VisualStateManager.VisualStateGroups>
    <VisualStateGroup x:Name="AdaptiveStates">
        <VisualState x:Name="Narrow">
            <Storyboard> ... </Storyboard>
        </VisualState>
        <VisualState x:Name="Wide">
            <Storyboard> ... </Storyboard>
        </VisualState>
    </VisualStateGroup>
</VisualStateManager.VisualStateGroups>

5. Applying Templates and Styling

To make designs easy to reuse, UWP allows for the use of templates and styles. In particular, ControlTemplate and DataTemplate help to extend functionality while maintaining the UI.

5.1. ControlTemplate Example

<Button Template="{StaticResource MyButtonTemplate}" />

5.2. DataTemplate Example

<DataTemplate x:Key="MyDataTemplate">
    <StackPanel>
        <TextBlock Text="{Binding Name}" />
        <TextBlock Text="{Binding Age}" />
    </StackPanel>
</DataTemplate>

6. Conclusion

In this article, we learned about specifying default values for rows and columns in UWP development, as well as how to structure the UI using Grid and StackPanel. We also explored how to integrate XAML and C# code to implement data binding and create responsive designs. All of these processes greatly contribute to providing an intuitive user experience.

UWP allows you to design applications that deliver a unified user experience across various devices. I hope this article has been helpful in learning UWP development. Explore the diverse features in the ever-evolving UWP ecosystem to make your apps even more attractive.

UWP Development, Outputting the Values of Rows and Columns in the Given Format

Universal Windows Platform (UWP) development aims to create apps that can run on various devices. In this course, we will explain in detail how to output the values of rows and columns in a UWP application in a given format, and provide practical example code for this.

Understanding the Basic Structure of UWP

UWP applications are fundamentally made up of XAML (Extensible Application Markup Language) and C# or VB.NET. XAML is used to define the UI, while C# is used to implement the business logic of the application. Our goal is to set the format of the data and output it to the UI.

Row and Column Data Structure

There can be various ways to represent row and column data, but the most commonly used methods are to use controls like DataGrid and ListView. In this example, we will output the data of rows and columns using the ListView control.

XAML UI Design

First, let’s define the UI in XAML. The code below sets up the basic UI for outputting row and column data.

<Page
    x:Class="MyApp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:MyApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid>
        <StackPanel>
            <TextBlock Text="Data Output Example" FontSize="24" Margin="10" />
            <ListView x:Name="dataListView">
                <ListView.View>
                    <GridView>
                        <GridViewColumn Header="ID" Width="100" DisplayMemberBinding="{Binding Id}" />
                        <GridViewColumn Header="Name" Width="200" DisplayMemberBinding="{Binding Name}" />
                        <GridViewColumn Header="Age" Width="100" DisplayMemberBinding="{Binding Age}" />
                    </GridView>
                </ListView.View>
            </ListView>
        </StackPanel>
    </Grid>
    </Page>
    

Defining the Data Model

Define the data model to be used in the app. This model structures the data and makes it easy to work with. The code below defines a simple data model class called Person.

public class Person
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }

        public Person(int id, string name, int age)
        {
            Id = id;
            Name = name;
            Age = age;
        }
    }
    

Loading and Binding Data

Now, let’s look at how to generate data and bind it to the ListView. Add the following code to the MainPage.xaml.cs file to initialize the data and connect it to the UI.

using System.Collections.Generic;
    using Windows.UI.Xaml.Controls;

    namespace MyApp
    {
        public sealed partial class MainPage : Page
        {
            public MainPage()
            {
                this.InitializeComponent();
                LoadData();
            }

            private void LoadData()
            {
                var people = new List<Person>
                {
                    new Person(1, "Hong Gildong", 25),
                    new Person(2, "Lee Mongryong", 30),
                    new Person(3, "Seong Chunhyang", 28),
                };

                dataListView.ItemsSource = people;
            }
        }
    }
    

Implementing Formatted Output

Now, let’s output the values of rows and columns in the given format. For example, we can output the age according to a specific criterion. To do this, we can use the CellTemplate of the GridViewColumn to format the values.

<GridViewColumn Header="Formatted Age" Width="150">
    <GridViewColumn.CellTemplate>
        <DataTemplate>
            <TextBlock>
                <TextBlock.Text>{Binding Age, Converter={StaticResource AgeFormatConverter}}</TextBlock.Text>
            </TextBlock>
        </DataTemplate>
    </GridViewColumn.CellTemplate>
    </GridViewColumn>
    

In the code above, AgeFormatConverter is a converter that formats the age. This converter is necessary to transform the data bound in XAML for display on the screen.

Implementing the Converter Class

using System;
    using System.Globalization;
    using Windows.UI.Xaml.Data;

    public class AgeFormatConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            if (value is int age)
            {
                return $"{age} years"; // Formatted output
            }
            return string.Empty;
        }

        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }
    }
    

Run the App & Check Results

Now that everything is set up, run the application and check the data in the ListView. Each row displays the ID, name, and age, with the age appearing in a formatted manner. This completes a simple UWP app!

Conclusion

We have learned how to output the values of row and column fields in a given format in UWP development. We explored how to use XAML, data models, data binding, and format converters. With this foundation, you can advance to more complex applications.

In the future, take more interest in UWP development and try adding various features. The next course will cover asynchronous programming in UWP.

UWP Development, Filtering

In Windows Universal Platform (UWP) development, filtering is an essential technique for simplifying the user interface and improving the readability of data. The filtering capability, which helps users navigate large lists or data more easily, plays a particularly important role. This article will detail the concept of filtering in UWP development, its necessity, implementation methods, and provide example code.

1. The Concept of Filtering

Filtering refers to the process of selecting and displaying only data items that meet certain conditions. This is particularly important in applications with large amounts of data, helping users to find the information they need more quickly and conveniently when reviewing a list of data. For example, finding information about a specific name in a person’s contact list, or locating products in a specific category on a shopping website.

2. Reasons for Needing Filtering

  • Ease of Data Navigation: Users can easily view the information they need from large amounts of data.
  • Improved User Experience: Filtering makes the user interface (UI) more intuitive when dealing with a large amount of data.
  • Performance Improvement: It avoids unnecessary data loads, enhancing application performance.

3. How to Implement Filtering in UWP

Various techniques can be used to implement filtering in UWP, but the most common methods involve using ObservableCollection and LINQ (Language-integrated Query). These methods provide the advantage of automatically reflecting changes in data onto the UI.

3.1 ObservableCollection

ObservableCollection provides a convenient feature that automatically notifies the UI when items in the collection are added, deleted, or updated. In other words, the data displayed on the UI is managed by ObservableCollection, and the UI is updated automatically when the data within it changes.

3.2 LINQ

LINQ is a powerful feature of .NET used for querying data, making it easier to filter data from collections and databases. Using LINQ syntax, desired data can easily be filtered from ObservableCollection.

4. Example Code for Filtering

The following is an example code of implementing filtering in a UWP application. In this example, a simple contact application is created that allows users to filter contacts by name.

4.1 XAML UI Layout




    
        
            
            
                
                    
                        
                    
                
            
        
    

4.2 Code Behind


using System;
using System.Collections.ObjectModel;
using System.Linq;
using Windows.UI.Xaml.Controls;

namespace UWPFilteringExample
{
    public sealed partial class MainPage : Page
    {
        private ObservableCollection<Contact> Contacts { get; set; }
        public ObservableCollection<Contact> FilteredContacts { get; set; }

        public MainPage()
        {
            this.InitializeComponent();
            Contacts = new ObservableCollection<Contact>
            {
                new Contact { Name = "Alice" },
                new Contact { Name = "Bob" },
                new Contact { Name = "Charlie" },
                new Contact { Name = "David" },
                new Contact { Name = "Eve" }
            };

            FilteredContacts = new ObservableCollection<Contact>(Contacts);
            ContactListView.ItemsSource = FilteredContacts;
        }

        private void SearchBox_TextChanged(object sender, TextChangedEventArgs e)
        {
            var searchText = SearchBox.Text.ToLower();
            FilteredContacts.Clear();

            foreach (var contact in Contacts.Where(c => c.Name.ToLower().Contains(searchText)))
            {
                FilteredContacts.Add(contact);
            }
        }
    }

    public class Contact
    {
        public string Name { get; set; }
    }
}

5. Explanation of Example Code

In the above code, the XAML section defines the user interface. It implements a TextBox and ListView to filter the contact list based on the name input from the user. In the code-behind, the default contact list is managed with ObservableCollection, and the SearchBox_TextChanged event handler is called each time the user inputs a name, filtering the contact list.

The filtering logic searches for names in the Contacts collection based on the text entered in the search box and adds only the contacts containing that name to FilteredContacts, which is displayed in the ListView.

6. Performance Optimization

When filtering large datasets, performance is an important consideration. Here are some tips for optimizing filtering performance in UWP.

  • Use Asynchronous Programming: Perform data loading and filtering tasks asynchronously to prevent blocking the UI.
  • Optimize Filtering Conditions: When using combined filters with multiple conditions, using only the necessary conditions can be beneficial for performance.
  • Minimize UI Updates: Update the ListView only once after filtering. It’s better to reflect changes in bulk.

7. Conclusion

Filtering in UWP applications is essential for enhancing the user experience and effectively managing data. Implementing filtering capabilities that help users navigate data easily is one of the important roles of developers. Based on the methods explained today, you will be able to implement more intuitive filtering functions in your UWP applications.

Additionally, it will be a good experience to research and experiment with various filtering methods tailored to the characteristics of each application. Consider implementing various features such as data sorting and grouping together with filtering to create a more complete application.

I hope this article has provided useful information for UWP development, and I wish all readers successful development!

UWP Development, Creating Projects

UWP (Universal Windows Platform) is a platform provided by Microsoft that allows developers to create apps that run on Windows 10 and later versions. With UWP, you can create applications that can run on various devices such as PCs, tablets, phones, and Xbox. In this article, we will take a closer look at how to create a UWP project.

1. Preparing the Environment for Creating UWP Projects

To start UWP development, you need Visual Studio. Visual Studio is an integrated development environment (IDE) provided by Microsoft, which is a tool for developing various applications, including UWP. Let’s follow the steps below to install and set up Visual Studio.

1.1 Installing Visual Studio

  1. Visit Microsoft’s official download page.
  2. Select and download the Community version or your desired version.
  3. Run the downloaded installer and choose the ‘Universal Windows Platform development’ workload in the ‘Development tools’ section for UWP development.
  4. Once the installation is complete, launch Visual Studio.

2. Creating a New UWP Project

The process of creating a new UWP project in Visual Studio is very simple. Let’s follow the steps below to create a new project.

2.1 Creating a New Project

  1. After launching Visual Studio, click “File” in the menu and select “New”.
  2. Select “Project”.
  3. When the “New Project” dialog opens, choose “C#” or “Visual Basic” in the left panel.
  4. In the central panel, select “Universal” and then choose “Blank App”. For this example, we will select “Blank App (Universal Windows)”.
  5. Set the project name and location, then click the “Create” button.

2.2 Setting the Target Version and Minimum Version

Once the project is created, you will configure the target version and minimum version settings. Here, ‘Target Version’ refers to the highest Windows 10 version on which the app will run, and ‘Minimum Version’ refers to the lowest Windows 10 version on which the app can run. This determines what features can be accessed on the user’s system.

  1. Select the target version. It is generally recommended to choose the latest version.
  2. Select the minimum version based on the range you want to support. Usually, a similar latest version is chosen.
  3. Once the settings are done, click the “OK” button.

3. Understanding the Structure of a UWP Application

Once a UWP project is created, various files and folders will be generated within Visual Studio. The structure is as follows:

  • Properties: Files that set the properties of the project. Here you can set the app’s name, version information, icon, etc.
  • MainPage.xaml: A file that defines the main user interface (UI) of the UWP app. UI can be declaratively designed based on XAML (Extensible Application Markup Language).
  • App.xaml: A file that defines the global resources and settings of the app.
  • App.xaml.cs: Contains the business logic of the app. It handles the implementation of the Application class.
  • Assets: A folder that contains resources such as images and icons to be used in the application.

4. Creating a Hello World Example

Now that we understand the basic structure of a UWP project, let’s create a simple “Hello World” example. This example is a basic app that displays the text ‘Hello World’ when the user clicks a button.

4.1 Designing the UI

We will open the ‘MainPage.xaml’ file to design the UI. Here we will add a button and a text block.

<Page
    x:Class="HelloWorldApp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:HelloWorldApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

    <Grid>
        <StackPanel VerticalAlignment="Center" HorizontalAlignment="Center">
            <TextBlock x:Name="HelloTextBlock" Text="Welcome!" FontSize="36" Margin="0,0,0,20"/>
            <Button Content="Click Me!" Click="Button_Click" Width="200" Height="60"/>
        </StackPanel>
    </Grid>
</Page>

4.2 Implementing the Code Behind

Now we will open the ‘MainPage.xaml.cs’ file to implement the button click event.

using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace HelloWorldApp
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            HelloTextBlock.Text = "Hello World!";
        }
    }
}

5. Running the Application

With all the coding completed, let’s run the application. Press Ctrl + F5 to run, and you will see the text ‘Hello World!’ appear when the ‘Click Me!’ button is clicked.

6. Deploying the UWP App

There are several ways to deploy a UWP application. The most common method is deployment to the Microsoft Store. Let’s look at the deployment process.

6.1 Packaging

  1. Select the “Build” menu in Visual Studio and click “Package” to start the packaging process.
  2. Select “Publish” on the right, then select “Create App Packages”.
  3. When the app package generation wizard starts, select the option “I will build the application for the Store”. This creates a store-specific package.
  4. Follow the subsequent steps to enter app information and generate the final package.

6.2 Submitting to Microsoft Store

After generating the package, you can log in to Microsoft’s developer dashboard to submit the app. The app submission process is as follows.

  1. Log in to Microsoft’s Developer Dashboard.
  2. Register a new app and enter the required information.
  3. Upload the package and request an app review.

7. Conclusion

In this article, we learned about the method of creating projects using UWP. The UWP platform provides powerful features and compatibility across various devices, enabling the development of applications that can be used across multiple environments with a single codebase. Through the “Hello World” project described above, you can understand the basics of UWP and lay the groundwork for creating more complex applications.

We hope you will learn more about UWP features and advanced programming techniques in the future. If you are ready to step into the fascinating world of UWP development, let’s move on to the next steps!