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Binding ListView SelectedItem


Binding ListView SelectedItem

By : Erel
Date : November 17 2020, 04:28 AM
should help you out I am working on a WPF application that has a ListView with several Image sources loaded into it. How can I bind the selected image so it is displayed in a larger viewing area that is contained within a Grid?
code :
<Image Source="{Binding ElementName=MyListView, Path=SelectedItem.ImageUri}"/>


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SelectedItem in ListView binding

SelectedItem in ListView binding


By : nimrod1987
Date : March 29 2020, 07:55 AM
Any of those help I'm new to WPF. In my sample application I'm using a ListView to display contents of property. I don't know how to bind SelectedItem in ListView to property and then bind to TextBlock.
code :
private void Window_Loaded(object sender, RoutedEventArgs e){
    ListViewPersonDetails.ItemsSource= manager.GetPersons();
}
this.DataContext = this;
<TextBlock Height="23" Name="textFirstNameBlock" FontSize="12" Margin="97,240,155,144">
    <Run Text="Name: " />
    <Run Text="{Binding CurrentSelectedPerson.FirstName}" FontWeight="Bold" />
</TextBlock>

<TextBlock Height="23" Name="textLastNameBlock" FontSize="12" Margin="97,263,155,121">
    <Run Text="Branch: " />
    <Run Text="{Binding CurrentSelectedPerson.LastName}" FontWeight="Bold" />
</TextBlock>

<TextBlock Height="23" Name="textAddressBlock" FontSize="12" Margin="0,281,155,103" HorizontalAlignment="Right" Width="138">
    <Run Text="City: " />
    <Run Text="{Binding CurrentSelectedPerson.Address}" FontWeight="Bold" />
</TextBlock>
private Person currentSelectedPerson;
public Person CurrentSelectedPerson 
{
    get { return currentSelectedPerson; }
    set 
    {
        currentSelectedPerson = value;
        if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("CurrentSelectedPerson"));
    }
}
<TextBlock Height="23" Name="textFirstNameBlock" FontSize="12" Margin="97,240,155,144">
    <Run Text="Name: " />
    <Run Text="{Binding ElementName=ListViewPersonDetails, Path=SelectedItem.FirstName}" FontWeight="Bold" />
</TextBlock>
Trouble in binding ListView.SelectedItem

Trouble in binding ListView.SelectedItem


By : namebryant
Date : March 29 2020, 07:55 AM
To fix this issue I agree with Clemens and blindmeis. The only fact is that the SelectedOne need to be the same class that the one set for the Collection. And with the MVVM-light libraries, the method is RaisePropertyChanged instead of OnPropertyChanged (if your viewModel inherit from ViewModelBase).
If your source contains ItemViewModels should use this code :
code :
private ItemViewModel _selectedOne;

public ItemViewModel SelectedOne 
{
    get { return _selectedOne; }
    set 
    {

        if(_selectedOne != value)
        _selectedOne = value;

        RaisePropertyChanged("SelectedOne");
    }
}
wpf listview selecteditem oneway binding

wpf listview selecteditem oneway binding


By : buyvidalistaprofessi
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further So the answer to this question was found in the BindingExpression hash=??? trace output. The Song object needs to override the Equals and GetHashCode methods because the default uses a reference equality and the remote server will server up a new instance of the equivalent object.
Listview SelectedItem not binding

Listview SelectedItem not binding


By : Stefan Lober
Date : March 29 2020, 07:55 AM
hope this fix your issue I'm having an issue where my attempting to use a listview to display a list of objects, and send them to a new page. However, BrandBox.isSelected is returning null. , Try doing like this
code :
 private void Selector_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
 {
     ListView brandBox = sender as ListView;
    if(brandBox != null)
    {
        Brand selectedBrand = brandBox.SelectedItem as Brand;
        if(selectedBrand != null)
        {
            this.NavigationService.Navigate(new CarsPurchaseable(selectedBrand));
        }
    }
}
ListView binding SelectedItem to Textbox

ListView binding SelectedItem to Textbox


By : v2devjo
Date : March 29 2020, 07:55 AM
this one helps. You aren't using the ItemsSource binding to populate the listview; all that's doing is generating an error in Visual Studio's Output pane. So I've omitted it. If you bind something to ItemsSource, the "something" must be a collection of objects, not a single object like the Recipe property of your Page.
I'm guessing that when the user clicks on a Recipe in the listview, you want that Recipe to be assigned to the Recipe property of your page. Once you've got that, you can bind the TextBox's Text to a property of that Recipe.
code :
<ListView Grid.Column="0" 
    Name="listOfRecipes" 
    Margin="10,10,10,240" 
    Height="150"
    SelectedItem="{Binding Recipe, RelativeSource={RelativeSource AncestorType=Page}}
    >

<!-- snip -->

<TextBox 
    Text="{Binding Recipe.Name, RelativeSource={RelativeSource AncestorType=Page}}" 
    Grid.Column="1" 
    Height="50" 
    Margin="10,10,-10,340"
    />
<TextBox 
    Text="{Binding SelectedItem.Name, ElementName=listOfRecipes}" 
    Grid.Column="1" 
    Height="50" 
    Margin="10,10,-10,340"
    />
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