WPF - Create reusable style with variables/parameters

Question

I have an WPF application which contains several TabItems. Each TabItem is different from each other, with a text and an icon.

This is how the TabItem´s style is def

Answer 1

You just need to set the TabItem.DataContext to an object that contains values for your TextBlock and Image controls:

In code:

public class TabItemData
{
    public string ImageSource { get; set; }
    public string Heading { get; set; }
}

In your Style in XAML:

In your view model:

public class TabControlViewModel
{
    public TabControlViewModel()
    {
        TabItemData = new TabItemData() { Header = "Some header", 
            ImageSource = "Images/IconLeafGrey.png" };
    }

    public TabItemData TabItemData { get; set; }
}

In XAML:

    ...

Of course, I've left out some initialisation of the data objects and the INotifyPropertyChanged interface which you should implement, but I hope you get the idea.