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I need to get attribute of listbox selecteditem wpf

I have that listbox: my bind is ProdutoGrupoViewModel, and list named as ListBoxGrupos
<ListBox HorizontalAlignment="x:Name="ListBoxGrupos"
ItemsSource="{Binding ProdutoGrupoViewModel}"
SelectionChanged="ListBoxGrupos_SelectionChanged">
<ListBox.ItemTemplate>
<DataTemplate x:Name="ListViewGrupos">
<StackPanel>
<TextBlock Text="{Binding Descricao}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
and when i get on my xaml.cs the property ListBoxGrupos.selectedItem, that returns for me an object
that object have some attributes
Obj.Descricao = "Pizzas"
Obj.GrupoCor = "FF8040"
Obj.GrupoID = 3
Obj.Image = "..."
Obj.Position = "0" ```
(i tried to upload the image of that obj, but need reputation, so i tried to explain)
i want to know how can i get the attribute GrupoID.

You need to cast the object to specified class
Grupo gru = (Grupo)ListBoxGrupos.SelectedItem;
gru.GrupoID = 3;

Data not binding to ListBox WPF

XAML
<Page x:Class="ManufacturingWPF.ShowHardware"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:ManufacturingWPF"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300"
Title="ShowHardware">
<Grid Background="AliceBlue">
<ListBox x:Name="HardwareList" ItemsSource="{Binding Hardware}" HorizontalAlignment="Left" Height="122" Margin="76,36,0,0" VerticalAlignment="Top" Width="149">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding ID}"/>
<TextBlock Text="{Binding Date}"/>
<TextBlock Text="{Binding Nodes}"/>
<TextBlock Text="{Binding Repeaters}"/>
<TextBlock Text="{Binding Hubs}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
Code Behind C#
public partial class ShowHardware : Page
{
public ShowHardware()
{
InitializeComponent();
DisplayData();
}
public void DisplayData()
{
//Datamodel MDM used for ADO and table creation
//Test is a class used to pass the model and as the name suggest
test it
ManufacturingDataModel MDM = new ManufacturingDataModel();
Test t = new Test(MDM);
List<Hardware> x = t.GetHardware();
foreach(Hardware i in x )
{
HardwareList.ItemsSource = i.Hubs.ToString();
}
}
}
}
I'm facing issues binding the data to the listbox as shown in the XAML and code-behind content.
I've tried previous answers without any luck , did my research but apparently I'm missing out something or maybe there is something I don't quite understand.
Itemsource as the name suggest should bind to the source of where my data is being held. In this case the source would be my class Hardware that holds data for Nodes, date , hubs etc etc.
And in the textblock I manually bind these properties and display the values.
But this is not working.
P.S. My DB table is populated.

That's because the ItemsSource is an IEnumerable and you assign to it the list of hardware itself. So you code should look something like this :
ManufacturingDataModel MDM = new ManufacturingDataModel();
Test t = new Test(MDM);
List<Hardware> x = t.GetHardware();
HardwareList.ItemsSource = x;
//or
foreach (Hardware h in x)
HardwareList.Items.Add(h);

This code seems wrong
foreach(Hardware i in x )
{
HardwareList.ItemsSource = i.Hubs.ToString();
}
Then ItemsSource for Binding has to be a Collection (List, ObservableCollecion, IEnumerable<> ...).
Try HardwareList.ItemsSource = x; and remove the foreach loop
I hope this can help you.

Multi level data Binding in Windows Phone 8

I am a beginner in Windows phone programming.
I want to bind the data from API to my XAML elements using that Binding Attributes. Please let me know how can we bind multilevel classes objects in it.
Here's my scenario.
List<Sample> SearchResult = new List<Sample>()
{
new Sample(){
Name="ABC",
modelProperty = new SampleDetail(){
articleNo="1", videoURL = "https://www.youtube.com/watch?v=abc",
colors = new List<ColorsDemo>(){
new ColorsDemo {
Name = "Red",
colorProperty= new ColorDemoProperty{ name = "ABC",article_no = "Art1",
image = new Uri("http://img.youtube.com/vi/e60E99tUdxs/default.jpg",UriKind.RelativeOrAbsolute)
}
}
}
}
}
And now, I want to bind the Name of ColorsDemo class into my textblock. See what I have done to bind in XAML like this:
<TextBlock x:Name="PName" Grid.Row="0" Margin="100,0,0,0" Tap="ProductName_Tap" HorizontalAlignment="Center" VerticalAlignment="Center" Width="350" TextWrapping="Wrap" Foreground="Black" Text="{Binding Path=modelProperty.colors.Name}" FontSize="30"></TextBlock>

From your code, i see that colors is a List of ColorDemo objects. So when you say {Binding Path=modelProperty.colors.Name}it does not tell which list item to bind to. The correct usage should be {Binding Path=modelProperty.colors[0].Name}. This tells the control to bind to the name of the first color item (as index is 0).
To bind all the colors. You should use a Listview and bind the colors in it. So you should be able to do something like this.
<ListView ItemSource={Binding Path=modelProperty.colors}>
<ListView.ItemTemplate>
<TextBlock x:Name="PName" Grid.Row="0" Margin="100,0,0,0" Tap="ProductName_Tap" HorizontalAlignment="Center" VerticalAlignment="Center" Width="350" TextWrapping="Wrap" Foreground="Black" Text="{Binding Path=Name}" FontSize="30"></TextBlock>
</ListView.ItemTemplate>
</ListView>

Get selected item from a ListBox at hold

I've got a ListBox in a WP7 App where I want to do something with an item when the user hold it. The event work's great. My hold method gets called, but I can't detect which element in the list was hold.
ListBox.SelectedItem is always -1 and a code from another post on stackoverflow doens't work:
FrameWorkelement element = (FrameworkElement) e.OriginalSource;
ItemViewModel item = (ItemViewModel) element.DataContext;
I get an InvalidCastException when running it in the second line.

The following code should work.
private void StackPanel_Hold(object sender, GestureEventArgs e)
{
ItemViewModel itemViewModel = (sender as StackPanel).DataContext as ItemViewModel;
string t = itemViewModel.LineOne;
}
Note: before using the DataContext of the sender object, make sure you cast the sender object to the correct class. In this example I use a StackPanel in my DataTemplate:
<ListBox x:Name="MainListBox" Margin="0,0,-12,0" ItemsSource="{Binding Items}" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0,0,0,17" Height="78" Hold="StackPanel_Hold">
<TextBlock Text="{Binding LineOne}" />
<TextBlock Text="{Binding LineTwo}" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>

Silverlight ListBox always highlights first item upon selection

I have a ListBox being populated in code. Each item is a simple text/url combination and when an item is selected, it should redirect to the selected item's URL. That is working as expected, but I'm having an issue with the selection of the item in the ListBox. It seems that no matter which item you selected, the first item in the ListBox is being highlighted each time. You are still taken to the correct item, but it's highlighting the wrong one. Any idea?
Edit: This is a problem in IE8, but works as expected in FF3.
Edit: Adding sample code. HeadlineData is a custom class, just basically to hold data to be displayed.
<Canvas x:Name="HeadlineCanvas">
<ListBox x:Name="HeadlineListBox" Width="260" Height="380" BorderBrush="Gainsboro" BorderThickness="1" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Hidden">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical">
<HyperlinkButton MinHeight="20" MaxHeight="40" Width="240" NavigateUri="{Binding Url}" IsTabStop="False">
<TextBlock TextWrapping="Wrap" Text="{Binding Title}"/>
</HyperlinkButton>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Canvas>
C# Code
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
HeadlineData hd = new HeadlineData();
hd.Title = "Title 1";
hd.HeadlineNewsTitle = "Title 1";
hd.LastModifiedTime = DateTime.Now;
hd.Url = "http://www.google.com";
this.HeadlineListBox.Items.Add(hd);
hd = new HeadlineData();
hd.Title = "Title 2";
hd.HeadlineNewsTitle = "Title 2";
hd.LastModifiedTime = DateTime.Now;
hd.Url = "http://www.google.com";
this.HeadlineListBox.Items.Add(hd);
}
}

The problem is that your listbox isn't getting the selection. When you click on the Hyperlink button it is handling the click event so the item doesn't get selected.
You'll need to remove the hyperlink button and then do your navigation on the ListBox SelectionChanged event instead if you want the selection to change.