Windows 10: How do i get back a listbox item after a window closes in C# WPF

I have 1 Listbox it takes items from TextBox, when an item is added to the listbox and the application is closed, upon opening the application the item added to the listbox will still be present.

Use case:

• User opens application.
• User adds item called "Item 1" to listbox using button.
• User closes application.
• User opens application again and sees that "Item 1" is still in the listbox, and the added item hasn't been lost by the application closing.

:)

 

Enable visual styles in WPF application

EUREKA!

Steps:
1) I made a Windows form (HostWPF namespace, Form1 is the form).
2) I added a reference => System.Windows.Forms.Integration which contains classes that enable interoperation between the Windows Forms and WPF technologies. When you use System.Windows.Forms.Integration classes, you can host Windows Forms controls on WPF pages, and WPF elements in Windows Forms-based applications.
3) Then added a control (damn Vi$ual $tudio 2010 does not allow to add a WPF window) but after adding I edited the XMAL code in the way I want *Wink
4) The next steps are simple. Download the first attachment. But => see the photo.
It crashes!!!!!
5) Finally???
We must use System.Windows.Forms.Application.Exit(); command because the WPF window behaves like a classical Windows Form.
Download the second attachment. Note that the Windows form's name is Initial.
Enjoy!

 

Run time error (C# WPF application)

Switching from Windows Forms programming to WPF (C#/XAML) will give you many headaches.
Stick with it, though, as the advantages are worth the effort.

 

VB Listbox help

ListBox is index-based. You can access an item via "MyListBox.Items(index)."


A textbox can support the new line character if Multiline = true. If you want an empty line in a ListBox, you'll just have to add an zero-length item like so: MyListBox.Items.Add("")