GUI_WPF

WPF Weather Demo

This is a simple WPF (Windows Presentation Foundation) application that demonstrates how to fetch and display weather information for selected cities. It uses XAML for the user interface and C# for the backend logic. This README provides an overview of the code and its components.

This is a simple WPF (Windows Presentation Foundation) application that demonstrates how to fetch and display weather information for selected cities. It uses XAML for the user interface and C# for the backend logic. This README provides an overview of the code and its components.

Prerequisites

Before running the application, make sure you have the following prerequisites:

• Visual Studio (or any other compatible IDE for C# development)
• .NET Framework

Project Structure

The project is structured as follows:

• MainWindow.xaml: This XAML file defines the main window and its UI elements. It also includes various styles for TextBlock, Label, and ComboBox elements.

• WeatherViewModel.cs: This C# class is the ViewModel for the application. It handles data retrieval and provides data binding for the UI. It communicates with the IWeatherService to fetch weather data.

MainWindow.xaml

• The Window element is defined with various attributes such as title, dimensions, and data context for design purposes.

• Inside the Window.Resources section, styles are defined for different UI elements like TextBlock, Label, and ComboBox. These styles define properties such as font size and foreground color.

• The main UI layout is structured using a Grid with five rows. It includes elements like Image, ComboBox, TextBlock, Label, and a Polygon for displaying weather-related information.

• The ComboBox element includes behaviors that trigger the DownloadWeatherCommand when loaded and when the selection changes. It also includes a default list of cities.

WeatherViewModel.cs

• This class implements the ViewModel for the application.

• It contains properties such as DownloadingWeather, IsWeatherInvalid, ErrorMessage, and Weather for data binding with the UI.

• The DownloadWeatherCommand is an AsyncRelayCommand that is invoked when the user selects a city. It calls the UpdateWeatherAsync method.

• The UpdateWeatherAsync method is responsible for fetching weather data. It sets the DownloadingWeather flag, handles exceptions, and updates the UI accordingly.

• The HandleUpdateWeatherFailed method is used to handle exceptions during weather data retrieval.

Usage

1. Make sure you have the required prerequisites installed.

2. Open the project in Visual Studio or your preferred IDE.

3. Build and run the application.

4. Select a city from the ComboBox, and the weather information will be displayed in the UI.

Contributing

If you want to contribute to this project, feel free to fork it and submit a pull request with your enhancements.

License

This project is under the MIT License. See the LICENSE file for details.

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This README provides an overview of the WPF Weather Demo project. It explains the structure, usage, and how to contribute to the project. Enjoy exploring and developing the application!