In MainWindow the commandbinding works fine.
In UserControl1 it doesnt work. Note the datacontext is set correctly as is evidenced by the content of the button which is the result of a binding.
I am not trying to bind the command in the usercontrol to a command in mainwindow or any other such trickery. I am just trying to replicate what I did in MainWindow in UserControl1.
// MainWindow xaml
<StackPanel>
<Button Content="Click Here" Command="{Binding ClickHereCommand}" Height="25" Width="90"></Button>
<local:UserControl1></local:UserControl1>
</StackPanel>
// MainWindow
public partial class MainWindow : Window
{
public static RoutedCommand ClickHereCommand { get; set; }
public MainWindow()
{
InitializeComponent();
this.DataContext = this;
ClickHereCommand = new RoutedCommand();
CommandBindings.Add(new CommandBinding(ClickHereCommand, ClickHereExecuted));
}
public void ClickHereExecuted(object sender, ExecutedRoutedEventArgs e)
{
System.Windows.MessageBox.Show("hello");
}
}
// UserControl1 xaml
<UserControl x:Class="CommandBindingTest.UserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300" x:Name="root">
<Grid DataContext="{Binding ElementName=root}" >
<Button Content="{Binding ButtonContent}" Command="{Binding ClickHereCommand}" Height="25" Width="90"></Button>
</Grid>
</UserControl>
// UserControl1
public partial class UserControl1 : UserControl, INotifyPropertyChanged
{
private string _ButtonContent;
public string ButtonContent
{
get { return _ButtonContent; }
set
{
if (_ButtonContent != value)
{
_ButtonContent = value;
OnPropertyChanged("ButtonContent");
}
}
}
public static RoutedCommand ClickHereCommand { get; set; }
public UserControl1()
{
InitializeComponent();
ClickHereCommand = new RoutedCommand();
CommandBindings.Add(new CommandBinding(ClickHereCommand, ClickHereExecuted));
ButtonContent = "Click Here";
}
public void ClickHereExecuted(object sender, ExecutedRoutedEventArgs e)
{
System.Windows.MessageBox.Show("hello from UserControl1");
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string name)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(name));
}
}
#endregion
}
