Developer.Implement chain for #150

[agent-app-kapeltol[bot]]

Write the C# code using Xamarin to create the task list, task creation, task modification and task deletion screens. The task list screen should display a list of tasks. The task creation screen should have fields for inputting task name, description, due date, user id and project id. The task modification screen should have fields for inputting task name, description, due date, user id and project id. The task deletion screen should have a field for inputting task id.

[agent-app-kapeltol[bot]]

Sure. Here are basic examples for each screen. Please note that this code assumes you already have a Xamarin.Forms project setup. Also note that real world applications would also have validation, error handling, data persistence, and possibly user authentication. This is a very simplified example just to give you an idea of how to structure the code.

#!/bin/bash

# Create the files
echo "
using System;
using Xamarin.Forms;

public class Task
{
    public string Name { get; set; }
    public string Description { get; set; }
    public DateTime DueDate { get; set; }
    public int UserId { get; set; }
    public int ProjectId { get; set; }
}
" > Task.cs

echo "
using System;
using Xamarin.Forms;

public class TaskListPage : ContentPage
{
    ListView listView;

    public TaskListPage()
    {
        listView = new ListView();
        Content = listView;
    }

    protected override async void OnAppearing()
    {
        base.OnAppearing();
        // You would normally fetch the task list from your data store here
        // and bind it to your ListView.
    }
}
" > TaskListPage.cs

echo "
using System;
using Xamarin.Forms;

public class TaskCreationPage : ContentPage
{
    Entry nameEntry, descriptionEntry, userIdEntry, projectIdEntry;
    DatePicker dueDateEntry;

    public TaskCreationPage()
    {
        nameEntry = new Entry { Placeholder = \"Task name\" };
        descriptionEntry = new Entry { Placeholder = \"Task description\" };
        dueDateEntry = new DatePicker { MinimumDate = DateTime.Today, Date = DateTime.Today };
        userIdEntry = new Entry { Placeholder = \"User ID\" };
        projectIdEntry = new Entry { Placeholder = \"Project ID\" };

        var saveButton = new Button { Text = \"Save\" };
        saveButton.Clicked += OnSaveClicked;

        Content = new StackLayout
        {
            Children = {
                nameEntry, descriptionEntry, dueDateEntry, userIdEntry, projectIdEntry, saveButton
            }
        };
    }

    void OnSaveClicked(object sender, EventArgs e)
    {
        Task newTask = new Task
        {
            Name = nameEntry.Text,
            Description = descriptionEntry.Text,
            DueDate = dueDateEntry.Date,
            UserId = int.Parse(userIdEntry.Text),
            ProjectId = int.Parse(projectIdEntry.Text)
        };

        // You would normally save the new task to your data store here
    }
}
" > TaskCreationPage.cs

echo "
using Xamarin.Forms;

public class TaskModificationPage : TaskCreationPage
{
    public TaskModificationPage(Task task)
    {
        nameEntry.Text = task.Name;
        descriptionEntry.Text = task.Description;
        dueDateEntry.Date = task.DueDate;
        userIdEntry.Text = task.UserId.ToString();
        projectIdEntry.Text = task.ProjectId.ToString();
    }

    override void OnSaveClicked(object sender, EventArgs e)
    {
        Task taskToModify = new Task
        {
            Name = nameEntry.Text,
            Description = descriptionEntry.Text,
            DueDate = dueDateEntry.Date,
            UserId = int.Parse(userIdEntry.Text),
            ProjectId = int.Parse(projectId.Text)
        };

        // You would normally modify the task in your data store here
    }
}
" > TaskModificationPage.cs

echo "
using Xamarin.Forms;

public class TaskDeletionPage : ContentPage
{
    Entry idEntry;

    public TaskDeletionPage()
    {
        idEntry = new Entry { Placeholder = \"Task ID\" };

        var deleteButton = new Button { Text = \"Delete\" };
        deleteButton.Clicked += OnDeleteClicked;

        Content = new StackLayout
        {
            Children = {
                idEntry, deleteButton
            }
        };
    }

    void OnDeleteClicked(object sender, EventArgs e)
    {
        int id = int.Parse(idEntry.Text);
        // You would normally delete the task from your data store here
    }
}
" > TaskDeletionPage.cs

# Echo completion
echo "Task related pages generated!"

This script will create several C# files that define classes for task object and for each of the requested screens. The above script is creating basic classes and user interfaces for the task list, task creation, task modification and task deletion screens. Each screen has a simple user interface and methods to handle the button click events.