Selected item binding in wpff MVVM

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Hi All,

I am writing a WPF application using MVVM. I have a list box which has multiple user controls loaded into it. When i click on a particular listbox item another control(Control1) will be loaded. I will close the control(Control1). Now when i click on the same user control(in listbox) again it does not load the control(Control1) again this is because the selectedItem value is fired because we selected the same item again. How can i make control to fire selected item again so that i can display the control again or is there any other way to resolve this.

My View Model code:

public TileControlViewModel SelectedItem
{
get { return _selectedItem; }
set
{
_selectedItem = value;
OnPropertyChanged("SelectedItem");
if (_selectedItem != null)
{
AddToLiveTile(_selectedItem.Key);
}

}
}

What I have tried:

I tried changing selected item to selected value but still it is not working.

Posted 11-Aug-16 22:46pm

veeresh angadi

Updated 11-Aug-16 22:56pm

v2

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veeresh angadi 12-Aug-16 4:56am

XAML code
<ListBox Name="lvDataBinding" SelectionMode="Single" ItemsSource="{Binding AllTiles}" SelectedItem="{Binding SelectedItem,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" IsSynchronizedWithCurrentItem="True">
<ListBox.ItemsPanel >
<itemspaneltemplate>
<wrappanel width="{Binding (FrameworkElement.ActualWidth),
RelativeSource={RelativeSource AncestorType=ScrollContentPresenter}}">

</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<datatemplate>
<custom:tilecontrol margin="10" datacontext="{Binding}">

</ListBox.ItemTemplate>
<ListBox>

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veeresh angadi · Answer 1 · 2016-08-11T22:49:00

my XAML

<listbox name="lvDataBinding" selectionmode="Single" itemssource="{Binding AllTiles}" selecteditem="{Binding SelectedItem,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" issynchronizedwithcurrentitem="True">
<listbox.itemspanel> <itemspaneltemplate>
<wrappanel width="{Binding (FrameworkElement.ActualWidth), <br mode=" hold=" /> RelativeSource={RelativeSource AncestorType=ScrollContentPresenter}}">

<listbox.itemtemplate> <datatemplate>
<custom:tilecontrol margin="10" datacontext="{Binding}" xmlns:custom="#unknown">