SelectedItems from nested listview

Question

I am developing a Windows Store App in which I have a nested listview i.e. expandable listview. To retain the selected items in child listview I have used

and in code behind

private void FiltersListview_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    try
    {
        var item = (sender as ListView).SelectedItem as FilterM;
        if (item != null)
            item.IsSelected = true;
        if (e.RemovedItems.Count > 0)
        {
            foreach (var Nitem in e.RemovedItems)
            {
                (Nitem as FilterM).IsSelected = false;
            }
        }
    }
    catch (Exception ex)
    {
        System.Diagnostics.Debug.WriteLine(ex.Message);
    }
}

private void FiltersListview_ItemClick(object sender, ItemClickEventArgs e)
{
    try
    {
        if ((sender as ListView).SelectedItem != null)
        {
            if ((sender as ListView).SelectedItem.Equals(e.ClickedItem))
                (sender as ListView).SelectedItem = null;
            else
                (sender as ListView).SelectedItem = e.ClickedItem;
        }
        else
            (sender as ListView).SelectedItem = e.ClickedItem;
    }
    catch (Exception ex)
    {
        System.Diagnostics.Debug.WriteLine(ex.Message);
    }
}

I have changed this question after my old question about it from here. But now on tap of a button named Go I want to know all the selected items in child listviews of each item. I have stumbled upon links like this but I'm not using MVVM and unable to make it work in my case.

Can anybody help?

Rohit · Accepted Answer

Well I have come up with a work around for this problem. I'm putting my solution if anybody needs it.

I have passed the child listview as parameter to ViewModel and managed it with help of command.

and in code behind

public class FilterM
{
public RelayCommand> SelectionChangedCommand  
{
    get
    {
        if (selectionChangedCommand == null)
        {
            selectionChangedCommand = new RelayCommand>(
                items =>
                {
                    // do something with selected items!
                }
            );
        }

        return selectionChangedCommand;
    }
}
}

and set itemssource of First listview. I got this idea from this link. Hope it helps somebody like me.

SelectedItems from nested listview

Answers (1)

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