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)?






    c# entity-framework







    share|improve this question



























      0












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      0







      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







      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




      c# entity-framework






      share|improve this question















      share|improve this question













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      edited Nov 10 at 23:45

























      asked Nov 10 at 23:17









      Juan Dent

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