Accessing UI controls in Viewmodel - wpf

Question

I have Stackpanel with Buttons as follows,
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Margin="0 10 0 0" Name="mystack">
<Button Width="30" Name="btn1" Height="30" Content="1" Margin="10"/>
<Button Width="30" Height="30" Content="2" Margin="10"/>
<Button Width="30" Height="30" Content="3" Margin="10"/>
<Button Width="30" Height="30" Content="4" Margin="10"/>
</StackPanel>
How to make these buttons as single object and use that in viewmodel?
because I have to check each and every buttons "Content" with my viewmodel property..

Answer 1

You would have to create a binding.
Content={Binding SomePropertyInYourViewModel, UpdateSourceTrigger=PropertyChanged}}

Answer 2

you need to add button command and button command parameter to the button
<Button Content="Button1" Command="{StaticResource DoSomethingCommand}" CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=Content}" />
this link may help you How to get the Content of Button in ViewModel?
this is how to add command in MVVM
public class ViewModelBase
{
public ViewModelBase()
{
_canExecute = true;
}
private ICommand _doSomethingCommand;
public ICommand DoSomethingCommand
{
get
{
return _doSomethingCommand ?? (_doSomethingCommand = new CommandHandler(() => MyAction(), _canExecute));
}
}
private bool _canExecute;
public void MyAction()
{
}
}
public class CommandHandler : ICommand
{
private Action _action;
private bool _canExecute;
public CommandHandler(Action action, bool canExecute)
{
_action = action;
_canExecute = canExecute;
}
public bool CanExecute(object parameter)
{
return _canExecute;
}
public event EventHandler CanExecuteChanged;
public void Execute(object parameter)
{
_action();
}
}