CODEWITHSUNDEEP
c#wpflistview
Pumper
Pumper

Reputation: 233

ObservableCollection in Secondwindow

i have two Windows. In Windows 1 i prepare an ObservableCollection. In Windows 2 i want bind this to a listview.

They are both in the same namespace.

public partial class Window1 : Window
{
   public ObservableCollection<KeyListItem> keys;

   public Window1 {
     this.keys = new ObservableCollection<KeyListItem>();

... some code i create the items (key) ...
keys.Add(key);
   }

private void OpenDialogAndShowList() {
//this i start from a button

var sKeys = new Window2();
sKeys.lvSelectKey.ItemsSource = keys;
}
}

In Window2 the XAML looks like this:

<Grid>
        <ListView Name="lvSelectKey" ItemsSource="{Binding keys}" HorizontalAlignment="Left" Height="211" Margin="10,10,0,0" VerticalAlignment="Top" Width="564">
            <ListView.View>
                <GridView>
                    <GridViewColumn Width="140" Header="Id" DisplayMemberBinding="{Binding Path=Id}" />
                    <GridViewColumn Width="140" Header="Name" DisplayMemberBinding="{Binding Path=Name}" />
                    <GridViewColumn Width="140" Header="Algorithm" DisplayMemberBinding="{Binding Path=Algorithm}" />
                    <GridViewColumn Width="140" Header="Bits" DisplayMemberBinding="{Binding Path=Bits}" />
                </GridView>
            </ListView.View>
        </ListView>


    </Grid>

The Problem is:

i see some empty lines in my listview. When i add three items, i see three lines ..... and so on.

But i don`t see any content.

When i debug it, i see the OC is not empty.

Somebody see my failure? :)

Upvotes: 0

Views: 49

Answers (2)

Mario Vernari
Mario Vernari

Reputation: 7304

You should adjust the class as follows:

public class KeyListItem
{ 
  public int Id { get; set; }
  public string Name { get; set; }
  public string Algorithm { get; set; }
  public int Bits { get; set; }
}

That is use properties instead of simple fields: the binding engine works only on properties.

Upvotes: 1

Pumper
Pumper

Reputation: 233

I got it, thank you Mario. I forgot the get; set;

public class KeyListItem
{
    public int Id { get; set;}
    public string Name { get; set; }
    public string Algorithm { get; set; }
    public int Bits { get; set; }
}

Upvotes: 0

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