Need advice - binding listview with poppup window in WPF c#.

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WPF

C#4.0

Hello everyone,

I have Listview with checkboxes. Please look up on the below image url.

https://s23.postimg.org/irk3vdc0b/11_1.png

After loaded listview, and check checkbox item then click on above button and want show a another window.xaml page like popup. Please look up on the below image url.

https://s30.postimg.org/4u1j6o835/image.png

https://s27.postimg.org/75f2g8x9f/image.png

After showing this poppup, then fill textbox again click on 'Save' button. Then I want to the remove listview checked items. How can I do this programmatically?

What I have tried:

I have tried... Inside 1st class, I have get checked item's id and documentname (these are the stored procedure parameters)

private void Img_ArchiveSe_MouseLeftButtonDown1(object sender, MouseButtonEventArgs e)  
        {  
            foreach (DocumentsUser item in listView1.SelectedItems)  
            {  
                UserIdArc.Add(item.UserId.ToString());  
                ImgNameArc.Add(item.Parent_File_Name);                       
            }  
            AddArchiveNamexaml SP = new AddArchiveNamexaml();  
            SP.ShowDialog();  
}  
  
public static ObservableCollection<string> ImgNameArc = new ObservableCollection<string>();  
        public static ObservableCollection<string> UserIdArc = new ObservableCollection<string>();  

Then, 2nd class (ie; code behind of popup window.xaml) insted Save button click event, I have get list of items (List data = service.GetUserDocumentsArc(objUserIdArc, objImgNameArc); ) and want to bind listview from 1st class.

private void btnAddUser_Click(object sender, RoutedEventArgs e)  
        {  
            DMSBusinessLayer service = new DMSBusinessLayer();  
            string objImgNameArc = string.Join(",", UC_FileMgmt.ImgNameArc.ToArray());  
            string objUserIdArc = string.Join(",", UC_FileMgmt.UserIdArc.ToArray());  
            List data = service.GetUserDocumentsArc(objUserIdArc, objImgNameArc);/*Here getting all items that I want to bind on 1st window page's listview.*/  
}  

I have done, is this correct or not ? Please advice me.