WPF textblock binding in XAML

Question

I\'m updating some existing WPF code and my application has a number of textblocks defined like this:

Answer 1

Try this:

In code:

public MyBusinessObject Instance { get; set; }

Instance = new MyBusinessObject();

In XAML:

<TextBlock Text="{Binding Instance.PropertyNameHere" />

Answer 2

Try to instantiate ObjectA in the same way as you are doing for PropertyA (Ie. as a property, with a public getter / setter, and calling OnPropertyChanged), then your XAML can be :

<TextBlock Text="{Binding ObjectA.PropertyNameHere}" />

Answer 3

Before <Run Text="{Binding ObjectA.PropertyNameHere}" /> will work you have to make ObjectA itself a property because binding will only work with properties not fields.

// my business object also contains another object like this
public SomeOtherObject ObjectA { get; set; }

public MyBusinessObject()
{
    // constructor
    ObjectA = new SomeOtherObject();
}

Answer 4

You can simply type this:

<TextBlock Text="{Binding ObjectA.PropertyNameHere"/>

You may want to implement INotifyPropertyChanged within your ObjectA class, as changing properties of the class will not be picked up by the PropertyChanged methods in your MyBusinessObject class.

Answer 5

You can do a same as you do for PropertyA like follows,

OnPropertyChanged(new PropertyChangedEventArgs("ObjectA"));

on Designer XAML,

<TextBlock x:Name="ObjectAProperty" Text="{Binding ObjectA.PropertyNameHere}" />