Adding custom class with XAML in ListBox C# WPF

Question

I have a class PC that contains Image , Label (with XAML design) and I want to get a list of PCs in ListBox in other class.

I tried this, but I get error System.Windows.Markup.XamlParseException :

pc p = new pc();
list_pc.Items.Add(p);
(where list_pc is a ListBox)

This is the XAML for a single PC :

 <Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"
    x:Class="TnCyberCafe.pc"
    Title="pc"
    SizeToContent="WidthAndHeight"
    ShowInTaskbar="False"
    WindowStartupLocation="CenterScreen"
    WindowStyle="None"
    AllowsTransparency="True"
    Background="Transparent" Width="95" Height="104.982">

    <Grid  HorizontalAlignment="Left" Margin="0,10,-15,10" Width="110">
        <Image x:Name="image" HorizontalAlignment="Left" Height="96" VerticalAlignment="Top" Width="100" Source="Resources/aaa.png" RenderTransformOrigin="0.5,0.26" Margin="0,-16,0,0"/>
        <Label Content="Label" HorizontalAlignment="Left" Height="25" Margin="20,70,0,-10" VerticalAlignment="Top" Width="45"/>
    </Grid>
</Window>

This is the XAML for my list_pc :

<ListBox x:Name="liste_pc" ScrollViewer.VerticalScrollBarVisibility="Disabled">
    <ListBox.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel IsItemsHost="True" Orientation="Horizontal"/>
        </ItemsPanelTemplate>
    </ListBox.ItemsPanel>
    List PCs                
</ListBox>

Answer 1

Your first question regarding the System.Windows.Markup.XamlParseException:

As Garry Vass mentioned something went wrong, but does not tell you exactly what happened. If you are developing in Visual Studio, Click on Exceptions under Debug Tab and enable Common Language Runtime Exceptions . This will point you to the Error Code.

For the second question you should have databindings and ListBox Itemtemplate as below

<ListBox x:Name="liste_pc" ItemsSource="{Binding PCList}"  ScrollViewer.VerticalScrollBarVisibility="Disabled">
     <ListBox.ItemTemplate>
           <DataTemplate>
              <StackPanel Orientation="Horizontal">
                  <Image Source="{Binding PCImageSource}" />
                  <Label Content="{Binding Path=PCName}" />
              </StackPanel>
          </DataTemplate>
     </ListBox.ItemTemplate>

</ListBox>

where PCList is the observable collection of PC Class object items