Binding an ObservableCollection to a DataGrid

Question

Okay, I am brand new to WPF. I am trying to bind a collection to a DataGrid control. When I run the program, the cells in the DataGrid are blank, even though there is data in the collection.

I have read all of the relevant articles on MSDN -- multiple times. I've searched Stack Overflow with no luck. I've spent a day and a half on this, and am just as confused as I was when I first started. Here is what I have so far.

The XAML for the DataGrid control:

<DataGrid AutoGenerateColumns="False" Margin="0,85,0,0" Name="dtaCompilation" ItemsSource="{Binding}">
   <DataGrid.Columns>
      <DataGridTextColumn Binding="{Binding FileName}"></DataGridTextColumn>
   </DataGrid.Columns>
</DataGrid>

And here is the class containing my collection:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        dtaCompilation.DataContext = Compilation;
    }

    ObservableCollection<CompilationFile> Compilation = new ObservableCollection<CompilationFile>();

    public class CompilationFile : INotifyPropertyChanged
    {
        public CompilationFile(string setPath, string setFile, string setExt)
        {
            this.Path = setPath;
            this.FileName = setFile;
            this.Extension = setExt;
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected void OnPropertyChanged(string name)
        {
            PropertyChangedEventHandler handler = PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(name));
            }
        }

        private string fileName;

        string FileName {
            get { return fileName; }
            set
            {
                fileName = value;
                OnPropertyChanged("FileName");
            }
        }

        string Path { get;  set; }
        string Extension { get;  set; }
    }
}

The end result is to have a DataGrid that shows only the FileName property for each CompilationFile object in the Compilation collection. If I edit a cell in the DataGrid, the FileName property for the relevant object will be updated in the collection. What exactly do I need to do to get this to work with the code above?

Answer 1

Set the properties you want databound to public

public string FileName {
        get { return fileName; }
        set
        {
            fileName = value;
            OnPropertyChanged("FileName");
        }
    }

 public string Path { get;  set; }
 public string Extension { get;  set; }