将数据绑定到数据网格

Question

I currently have a URL request the brings back XML data. I store that data in a document that is read and finds the information between certain attributes, and assigns those values to the my assigned variables. my wpf DataGrid is called Movie_DataGrid. Any help would be great on how to get this data to the DataGrid.

-- EDIT --

I updated my code with a new way i am trying to get my results. When stepping through each step of the code, the XML is storing fine, and all tag attributes between the Retrivalinfo class and the Retrievalinfo convertedMovie = new Retrievalinfo() are the same, but application errors out at this method.

My new issue is, the values within the attributes is not being grabbed and stored. I have also put a sample of what XML I would get back.

<root response="True">
<movie title="Up in the Air" year="2009" rated="R" released="23 Dec 2009" runtime="109 
min" genre="Drama, Romance" director="Jason Reitman" writer="Walter Kirn (novel), Jason
Reitman (screenplay), Sheldon Turner (screenplay)" actors="George Clooney, Vera Farmiga,
Anna Kendrick, Jason Bateman" plot="With a job that has him traveling around the country
firing people, Ryan Bingham leads an empty life out of a suitcase, until his company
does the unexpected: ground him." language="English" country="USA" awards="Nominated for
6 Oscars. Another 64 wins & 66 nominations."poster="http://ia.mediaimdb.com/images/M/MV5BMTI3MzYxMTA4NF5BMl5BanBnXkFtZTcwMD
E4ODg3Mg@@._V1_SX300.jpg" metascore="83" imdbRating="7.5" imdbVotes="215,961" imdbID="tt1193138" type="movie"/>
</root>    


     // This action will seach the IMDb API for the associated infromation for the IMDBID that is tagged with the title you chose in the ListBox.
     private void Movie_List_SelectionChanged(object sender, SelectionChangedEventArgs e)
     {   // Grabs the IMDBID associated to the movie title selected to be used with the second API request.
        var p = Movie_List.SelectedIndex;

        string titleID = structholder[p].IMDBID;

        // Prepares 2nd API URL request to get data for chosen title.
        // Creates a XML Document  to store the xml data that was sent back by the API.
        XmlDocument doc = new XmlDocument();
        doc.Load("http://www.omdbapi.com/?i=" + titleID + "&r=XML");

        // Creates a XML Noedlist to store the values that are going to be associated with the given attribute tag.
        XmlNodeList movieList = doc.GetElementsByTagName("movie");

        var movie = movieList.Item(0);

        Retrievalinfo convertedMovie = new Retrievalinfo()
        {
            title = movie.Attributes["title"].ToString(),
            actors = movie.Attributes["actors"].ToString().Split(',').ToList(),
            genre = movie.Attributes["genre"].ToString(),
            rated = movie.Attributes["rated"].ToString(),
            imdbRating = movie.Attributes["imbdRating"].ToString(),
            released = movie.Attributes["released"].ToString(),
            runtime = movie.Attributes["runtime"].ToString(),
        };

        List<Retrievalinfo> gridInfo = new List<Retrievalinfo>();
        Movie_DataGrid.ItemsSource = gridInfo;

---

---

Here is the class where each variable is stored that I want to display in the DataGrid.

namespace WpfApplication3
{
    public class Retrievalinfo
    {
       public Retrievalinfo()
        {
            actors = new List<string>();
        }

        //Creating a list of info objects that will store all returned data for selected title.
        public string title; 
        public List<string> actors; 
        public string genre;
        public string rated;
        public string imdbRating; 
        public string released; 
        public string runtime;

    }

    }

Answer 1

I though of writing a lengthy aswer but instead, here's a quick sample for you that you can use as reference and figure out the details yourself. MVVM not included :D

Hope it helps.

Codebehind

namespace MyMovies
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = this;

            Movies = new ObservableCollection<Movie>()
                {
                    new Movie("Lock, Stock and Two Smoking Barrels", 4),
                    new Movie("Life of Brian", 5),
                };

            var addMovieCommand = new RoutedUICommand();
            CommandManager.RegisterClassCommandBinding(typeof(Window),
                new CommandBinding(
                    addMovieCommand,
                    (sender, args) => AddMovie(),
                    (sender, args) => args.CanExecute = true));
            AddMovieCommand = addMovieCommand;
        }

        public ObservableCollection<Movie> Movies { get; set; }

        public ICommand AddMovieCommand { get; set; }

        private void AddMovie()
        {
            Movies.Add(new Movie(Guid.NewGuid().ToString(), 3));
        }
    }

    public class Movie
    {
        public Movie(string name, int stars)
        {
            Name = name;
            Stars = stars;
        }

        public string Name { get; set; }
        public int Stars { get; set; }
    }
}

XAML

<Window x:Class="MyMovies.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <StackPanel>
            <DataGrid 
                HorizontalAlignment="Stretch" 
                VerticalAlignment="Stretch"
                ItemsSource="{Binding Movies}">
            </DataGrid>
            <Button Content="Add movie" Command="{Binding AddMovieCommand}" />
        </StackPanel>
    </Grid>
</Window>

Which gives you

Answer 2

If I am understanding your question correctly, you need a few pieces:

• An ObservableCollection<RetrievalInfo> in your view model to store the retrieved data
• A Datagrid (or perhaps a grid view) in your XAML that has its item source bound to the above property
• Columns in the above control to represent each of your data pieces.
• The retrieval code should modify the observable collection so they appear on your UI

I would be happy to provide samples for any or all of those pieces that you aren't sure how to implement.

Answer 3

You can read the xml to List of object using the code snippet provided in the following Blog

Blog Link:

http://danielwylie.me/blog/2010/04/c-convert-xml-to-an-object-or-list-of-an-object

You can assign the ItemSource of dataGrid by using the following code snippet

Movie_DataGrid.ItemsSource = list;
        //here list object from  public static List<T> XmlToObjectList<T>(string xml, string nodePath)  method