Multiple selection in WPF MVVM ListBox

Question

I have a ListBox containing filenames. Now I need to get array of selected items from this ListBox. I found a few answers here, but none of them worked for me. I\'am using C

Answer 1

You can use this code for MVVM Pattern

XAML

ViewModel

private ObservableCollection deleteHistoryListBox = new ObservableCollection();
public ObservableCollection DeleteHistoryListBox
{
    get
    {
        return deleteHistoryListBox;
    }
    set
    {
        deleteHistoryListBox = value;
        this.RaisePropertyChanged("DeleteHistoryListBox");
    }
}

private HistoryItems deleteHistorySelectedItem;
public HistoryItems DeleteHistorySelectedItem
{
    get
    {
        return deleteHistorySelectedItem;
    }
    set
    {
        var selectedItems = DeleteHistoryListBox.Where(x => x.IsSelected).Count();
        this.RaisePropertyChanged("DeleteHistorySelectedItem");
    }
}

Class

public class HistoryItems : INotifyPropertyChanged
{
    private string item;

    public string Item
    {
        get { return item; }
        set
        {
            item = value;
            this.RaisePropertyChanged("Item");
        }
    }

    private bool isSelected;

    public bool IsSelected
    {
        get { return isSelected; }
        set
        {
            isSelected = value;
            this.RaisePropertyChanged("IsSelected");
        }
    }
}