prs/prs.shared/FormFields/DFAddTaskControl.cs

using Comal.Classes;
using InABox.Clients;
using InABox.DynamicGrid;
using PRSClasses;
using Syncfusion.Windows.Shared;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using Button = System.Windows.Controls.Button;
using MessageBox = System.Windows.MessageBox;
using TextBox = System.Windows.Controls.TextBox;

namespace PRS.Shared
{
    public class DFAddTaskControl : DynamicFormFieldControl<DFLayoutAddTaskField, DFLayoutAddTaskFieldProperties, int?>
    {
        private IntegerTextBox Number = null!; // Late-initialisation
        private Button Button = null!; // Late-initialisation

        protected override FrameworkElement Create()
        {
            var panel = new DockPanel();

            Button = new Button
            {
                Content = "Create Task",
                Padding = new Thickness(5),
                IsEnabled = FormDesignGrid.IsEditing
            };
            Button.Click += Button_Click;
            Number = new IntegerTextBox
            {
                IsEnabled = false,
                VerticalAlignment = VerticalAlignment.Stretch,
                Margin = new Thickness(0, 0, 5, 0)
            };

            Button.SetValue(DockPanel.DockProperty, Dock.Right);
            Number.SetValue(DockPanel.DockProperty, Dock.Left);

            panel.Children.Add(Button);
            panel.Children.Add(Number);

            return panel;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            var kanban = new Kanban();
            kanban.Type.ID = Field.Properties.TaskType.ID;

            var grid = DynamicGridUtils.CreateDynamicGrid(typeof(DynamicDataGrid<>), typeof(Kanban)) as DynamicDataGrid<Kanban>;
            if (grid!.EditItems(new[] { kanban }))
            {
                new Client<Kanban>().Save(kanban, $"Created by form variable '{Field.Name}'");
                Number.Value = kanban.Number;
                Button.IsEnabled = false;
            }
        }

        public override int? GetValue()
        {
            return Number.Value.HasValue ? Convert.ToInt32(Number.Value.Value) : null;
        }

        public override void SetValue(int? value)
        {
            Number.Value = value;
            Button.IsEnabled = FormDesignGrid.IsEditing && value == null;
        }

        protected override bool IsEmpty() => GetValue() == null;
    }
}