wpf checkbox binding inside listview

c# entity-framework-6 mvvm wpf xaml


I have 2 classes generated by Entity Framework as follows. My requirement is depending on the SystemEntity_ID in the JobEntity class, I want to bind the IsChecked property of the checkbox in the listview. The problem is right now all the checkboxes are being checked...Please help..

public partial class JobEntity
    public int JobEntity_ID { get; set; }
    public int Job_ID { get; set; }
    public Nullable<int> SystemEntity_ID { get; set; }
    public string EntityMigrationStatus { get; set; }

public partial class sp_SelectEntities_Result
    public Nullable<int> Project_ID { get; set; }
    public Nullable<int> Site_ID { get; set; }
    public int SystemEntity_ID { get; set; }
    public string EntityDesc { get; set; }

Below is my Viewmodel class:

public class EntityViewModel
    private List<sp_SelectEntities_Result> entitylist;
    private ObservableCollection<sp_SelectEntities_Result> _ObCollection;
    private EntityDbContext db;
    List<int> Selectedvalues = new List<int>();
    public EntityViewModel()
        db = new EntityDbContext();
        entitylist = db.sp_SelectEntities().ToList();

    public void convert()
        _ObCollection = new ObservableCollection<sp_SelectEntities_Result>(entitylist);

    public ObservableCollection<sp_SelectEntities_Result> obcollection
        get { return _ObCollection; }
        set { _ObCollection = value; }


My view i.e. MainWindow.

<ListView x:Name="lstentities" ItemsSource="{Binding obcollection}" Height="250" VerticalAlignment="Top">
            <GridViewColumn Header="Selected">
                        <CheckBox x:Name="chk" IsChecked="{Binding SystemEntity_ID}" />
            <GridViewColumn DisplayMemberBinding="{Binding EntityDesc}" Header="Entity" />

and in the mainwindow.cs

public MainWindow()

    EntityViewModel ev = new EntityViewModel();
    this.DataContext = ev;
12/17/2014 2:24:28 PM

Accepted Answer

The problem is that you are trying to bind nullable int to a boolean property. If you want this any way. You need a converter or Data Trigger.

Since I don't know what value will make the checkbox checked and what value will make the checkbox unchecked, i can write any code for your.

Hope this helps.

Kind Regards

9/28/2014 11:07:39 PM

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