How to get value of a string out of Listview

Question

I have a listview called lvNotities with some values in it from the class Notes. The values in the listview come from the list: public ObservableCollection Mappen = new ObservableCollection();

public class Notes
{
    public ObservableCollection<Notes> Mappen = new ObservableCollection<Notes>();
    private string titel;
    public string Titel
    {
        get { return this.titel; }
        set
        {
            if (this.titel != value)
            {
                this.titel = value;
                this.NotifyPropertyChanged("Titel");
            }
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    public void NotifyPropertyChanged(string propName)
    {
        if (this.PropertyChanged != null)
            this.PropertyChanged(this, new PropertyChangedEventArgs(propName));
    }
}

For example:

One
Two
Three

Click code:

StreamWriter outputStream = File.CreateText(Convert.ToString(lvNotities.SelectedItem) + ".txt");

So when I double click the item, I want a document to be made with the name for example: One.txt or Two.txt

But when I do it, the document is saved as : WpfApplication.Notes

I know the explanation is bad but hopefully someone knows what I want.

Apparently, your `lvNotities.SelectedItem` is an instance of type `WpfApplication.Notes`. What member do you want to read `"One"` or `"Two"` from? Does that class override `ToString()` (or how else is `Convert.ToString` supposed to know what to return other than the class name)? — O. R. Mapper, Nov 24 '16 at 13:11
Also, based upon your code, I'd assume your file is actually saved as `WpfApplication.Notes.txt` (i.e. with the extension), right? — O. R. Mapper, Nov 24 '16 at 13:14
Yes it is WpfApplication.Notes.txt. And the values come from the list: public ObservableCollection Mappen = new ObservableCollection(); — , Nov 24 '16 at 13:35
@SenneMachtelinckx: Please mention the user name of people you are responding to (by writing `@`, followed by the user name without spaces - the website supports tab completion for this), or else the people being answered will only learn about the answer by chance. In any case, the interesting/important question is what `Notes` looks like. — O. R. Mapper, Nov 24 '16 at 13:56

Vijay · Answer 1 · 2016-11-25T06:12:28.583

0

Try this...

StreamWriter outputStream = File.CreateText(Convert.ToString(((System.Windows.Controls.ContentControl)lvNotities.SelectedItem).Content) + ".txt");

edited Nov 25 '16 at 06:12

answered Nov 24 '16 at 13:26

Vijay

663
4
15

score 0 · Accepted Answer · answered Nov 24 '16 at 14:08

0

Does this work?

StreamWriter outputStream = File.CreateText(((Notes)lvNotities.SelectedItem).Titel + ".txt");

answered Nov 24 '16 at 14:08

Thejaka Maldeniya

1,076
1
10
20

Yes it does, thanks!!! – Nov 24 '16 at 14:25

How to get value of a string out of Listview

2 Answers2