In WPF and using EF, how can I display a subset of the fields of a class in a table?












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In a WPF application that also uses Entity Framework 6, I want to display only a subset of the fields of a class, but it is not clear to me how to do this. In the main window of the application, the Window_Loaded method contains the following code that provides a table display for all the fields of the class Course but I want it to display only a subset. This is the current code:



    private void Window_Loaded(object sender, RoutedEventArgs e)
{
System.Windows.Data.CollectionViewSource courseViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("courseViewSource")));

_context.Courses.Include(c => c.Author).Load();
courseViewSource.Source = _context.Courses.Local;

}


Well I found I can modify the XAML page to disable columns but how do I get them back if I want to increase the fields to display? Right now I removed the author DataGridTextColumn, but how do I add it back? Where do I get that code from? (like a "refresh" of sorts)?










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    In a WPF application that also uses Entity Framework 6, I want to display only a subset of the fields of a class, but it is not clear to me how to do this. In the main window of the application, the Window_Loaded method contains the following code that provides a table display for all the fields of the class Course but I want it to display only a subset. This is the current code:



        private void Window_Loaded(object sender, RoutedEventArgs e)
    {
    System.Windows.Data.CollectionViewSource courseViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("courseViewSource")));

    _context.Courses.Include(c => c.Author).Load();
    courseViewSource.Source = _context.Courses.Local;

    }


    Well I found I can modify the XAML page to disable columns but how do I get them back if I want to increase the fields to display? Right now I removed the author DataGridTextColumn, but how do I add it back? Where do I get that code from? (like a "refresh" of sorts)?










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      In a WPF application that also uses Entity Framework 6, I want to display only a subset of the fields of a class, but it is not clear to me how to do this. In the main window of the application, the Window_Loaded method contains the following code that provides a table display for all the fields of the class Course but I want it to display only a subset. This is the current code:



          private void Window_Loaded(object sender, RoutedEventArgs e)
      {
      System.Windows.Data.CollectionViewSource courseViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("courseViewSource")));

      _context.Courses.Include(c => c.Author).Load();
      courseViewSource.Source = _context.Courses.Local;

      }


      Well I found I can modify the XAML page to disable columns but how do I get them back if I want to increase the fields to display? Right now I removed the author DataGridTextColumn, but how do I add it back? Where do I get that code from? (like a "refresh" of sorts)?










      share|improve this question















      In a WPF application that also uses Entity Framework 6, I want to display only a subset of the fields of a class, but it is not clear to me how to do this. In the main window of the application, the Window_Loaded method contains the following code that provides a table display for all the fields of the class Course but I want it to display only a subset. This is the current code:



          private void Window_Loaded(object sender, RoutedEventArgs e)
      {
      System.Windows.Data.CollectionViewSource courseViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("courseViewSource")));

      _context.Courses.Include(c => c.Author).Load();
      courseViewSource.Source = _context.Courses.Local;

      }


      Well I found I can modify the XAML page to disable columns but how do I get them back if I want to increase the fields to display? Right now I removed the author DataGridTextColumn, but how do I add it back? Where do I get that code from? (like a "refresh" of sorts)?







      c# entity-framework






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      edited Nov 10 at 23:45

























      asked Nov 10 at 23:17









      Juan Dent

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