Binding from style template - wpf

Question

Here is what I am trying to accomplish - I have an Item control with its item source set to ObservableCollection Each item in this collection is used as a viewModel to create different buttons in ItemControl. I would like to know how can I bind to a property of this viewmodel(PersonViewModel) from button style template? Lets say, I want to control visibility of a specific element in my custom button with a property defined in PersonViewModel. Here is a little sample code:
public class MainViewModel : ViewModelBase
{
private ObservableCollection<PersonViewModel> _personViewModelList;
public ObservableCollection<PersonViewModel> PersonViewModelList
{
get => _personViewModelList;
set
{
_personViewModelList= value;
OnPropertyChanged("PersonViewModelList");
}
}
}
public class PersonViewModel
{
private bool _visible;
public bool Visible
{
get => _visible;
set
{
_visible= value;
OnPropertyChanged("Visible");
}
}
}
Here is my item control:
<ItemsControl ItemsSource="{Binding PersonViewModelList}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Width="360" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button
Style="{StaticResource ImageButton}">
</Button>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
And here is my custom button style:
<Style x:Key="ImageButton" TargetType="Button">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="20" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="20" />
<ColumnDefinition Width="20" />
</Grid.ColumnDefinitions>
//Here I want to bind to "Visible" property in PersonViewModel class. Any ideas on how to accomplish it?
<TextBlock Visibility="{Binding...}" Grid.Row="0" Grid.Column="1" />
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>

Answer 1

You could use something like this:
<TextBlock Visibility="{Binding DataContext.Visible, Converter={StaticResource BooleanToVisibilityConverter}, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Button}}" Grid.Row="0" Grid.Column="1" />
The problem is that the ContentPresenter of your Button has DataContext = null.