WPF TextBlock Binding doesn't work

binding, c#, textblock, wpf, xaml

Solution

Set `DataContext` of MainWindow to itself in constructor of MainWindow to resolve binding:

public MainWindow()
{
   InitializeComponent();
   this.DataContext = this;
}

OR

If you don't set DataContext, you have to resolve binding explicitly from XAML using `RelativeSource`:

<TextBlock Name="StatusBarLabel"
           Text="{Binding Message, RelativeSource={RelativeSource 
                                   Mode=FindAncestor, AncestorType=Window}}"/>

Note - You can always go and check output window of Visual Studio for any binding errors.

Problem

I try bind `Text` property of `TextBlock` to my property but text does not update. XAML ``` <Window x:Name="window" x:Class="Press.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" Title="Press analyzer" Height="350" Width="525" ContentRendered="Window_ContentRendered" d:DataContext="{d:DesignData MainWindow}"> ... <StatusBar Name="StatusBar" Grid.Row="2" > <TextBlock Name="StatusBarLabel" Text="{Binding Message}"/> </StatusBar> </Window> ``` C# ``` public partial class MainWindow : Window, INotifyPropertyChanged { private string _message; public string Message { private set { _message = value; OnPropertyChanged("Message"); } get { return _message; } } public event PropertyChangedEventHandler PropertyChanged; [NotifyPropertyChangedInvocator] protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName)); } } ```

Original source