How do I receive a Control itself out of an Item in a ListView?

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C#

Windows

WPF

Win8

VS2013

Hello everyone!

I've run across a seemingly unsolvable problem.

I have created two different UserControls.

The first one has one TextBlock and one TextBox
(name: ValueBoxControl)

The second one is exactly like the first one, except that I've added a ListView to it.
(name: ListViewControl)

Now I have added the ValueBoxControl 6x to the ListViewControl (into the ListView).
This is all code-behind. I don't use XAML for this.

Okay, so far there are 6 Items in my ListView of the ListViewControl. These Items are all ValueBoxControls.

After an Item gets the Focus, I want to switch the values of the ValueBoxControl TextBox / TextBlock with the TextBox / TextBlock of the ListViewControl.


To achieve that I have to read the content of the ValueBoxControl, INSIDE the currently selected Item of the ListView.
So, my question is: How do I do that? Is there something like a List.SelectedItem.Content.Text? Of course not, but how do I do that? I am absolutely desperate and there's not a single solution on the whole World Wide Web.

private void SelectItem()
        {
            string clipContent;
            string clipTitle;
            string itemContent;
            string itemTitle;
            ValueBoxControl control = List.SelectedItem;

            //TextBox and TextBlock of ListViewControl
            clipContent = ValueTextBox.Text;
            clipTitle = TitleText.Text;        

            //TextBox and TextBlock of ValueBoxControl
            itemContent = control.Text;
            itemTitle = control.TitleText.Text;

            control.Text = clipContent;
            control.TitleText.Text = clipTitle;

            //Text and TitleText.Text are the TextBox and TextBlock of the 
            //ListViewControl.
            Text = itemContent;
            TitleText.Text = itemTitle;
        }

This code obviously won't work, but that's about the idea I have. The problem is that List.SelectItem returns an object type, while ValueBoxControl is a UserControl.

Greetings
Narakuvera