Building WPF Applications with Self-Tracking Entity Generator - Project Setup

using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Media;
using GalaSoft.MvvmLight;
using SchoolSample.Common;

namespace SchoolSample
{
    /// <summary>
    /// Interaction logic for StudentPage.xaml
    /// </summary>
    public partial class StudentPage : Page
    {
        #region "Constructor"

        public StudentPage()
        {
            InitializeComponent();

            // register for BeginEditMessage
            AppMessages.BeginEditMessage.Register(this, OnBeginEditMessage);
            // register for EndEditMessage
            AppMessages.EndEditMessage.Register(this, OnEndEditMessage);
            // register for CancelEditMessage
            AppMessages.CancelEditMessage.Register(this, OnCancelEditMessage);

            if (!ViewModelBase.IsInDesignModeStatic)
            {
                // Use MEF To load the View Model
                DataContext = App.Container.GetExportedValue<ViewModelBase>(
                    ViewModelTypes.StudentPageViewModel);
            }

            // set up OneWayToSource binding from studentValidationSummary
            // to CurrentStudentHasErrors
            var binding = new Binding
                              {
                                  Path = new PropertyPath("CurrentStudentHasErrors"),
                                  Mode = BindingMode.OneWayToSource
                              };
            studentValidationSummary.SetBinding(ValidationSummary.HasErrorsProperty, binding);
        }

        #endregion "Constructor"

        #region "BeginEditMessage"

        private void OnBeginEditMessage(string screenName)
        {
            switch (screenName)
            {
                case "Student":
                    nameLabel.Foreground = new SolidColorBrush(Colors.Black);
                    nameTextBox.IsEnabled = true;
                    nameDescriptionViewer.Visibility = Visibility.Visible;
                    enrollmentDateLabel.Foreground = new SolidColorBrush(Colors.Black);
                    enrollmentDateDatePicker.IsEnabled = true;
                    enrollmentDateDescriptionViewer.Visibility = Visibility.Visible;
                    editCommitStudentButton.Content = "Commit";
                    break;
            }
        }

        #endregion "BeginEditMessage"

        #region "EndEditMessage"

        private void OnEndEditMessage(string screenName)
        {
            switch (screenName)
            {
                case "Student":
                    nameLabel.Foreground = new SolidColorBrush(Colors.Gray);
                    nameTextBox.IsEnabled = false;
                    nameDescriptionViewer.Visibility = Visibility.Collapsed;
                    enrollmentDateLabel.Foreground = new SolidColorBrush(Colors.Gray);
                    enrollmentDateDatePicker.IsEnabled = false;
                    enrollmentDateDescriptionViewer.Visibility = Visibility.Collapsed;
                    editCommitStudentButton.Content = "Edit";
                    break;
            }
        }

        #endregion "EndEditMessage"

        #region "CancelEditMessage"

        private void OnCancelEditMessage(string screenName)
        {
            switch (screenName)
            {
                case "Student":
                    nameLabel.Foreground = new SolidColorBrush(Colors.Gray);
                    nameTextBox.IsEnabled = false;
                    nameDescriptionViewer.Visibility = Visibility.Collapsed;
                    enrollmentDateLabel.Foreground = new SolidColorBrush(Colors.Gray);
                    enrollmentDateDatePicker.IsEnabled = false;
                    enrollmentDateDescriptionViewer.Visibility = Visibility.Collapsed;
                    editCommitStudentButton.Content = "Edit";
                    break;
            }
        }

        #endregion "CancelEditMessage"
    }
}