/// <summary>
/// Updates the Enabled state of the target element based on the CanExecute method of the command.
/// </summary>
protected void UpdateEnabledState()
{
if (AssociatedObject == null)
{
return;
}
var canExecute = true;
if (Command != null)
{
var resolvedParameter = DetermineParameter();
canExecute = Command.CanExecute(resolvedParameter);
}
#if NETFX_CORE
var control = AssociatedObject as Control;
if (control != null && !BindingHelper.IsDataBound(control, Control.IsEnabledProperty))
{
control.IsEnabled = canExecute;
}
#else
var control = AssociatedObject as FrameworkElement;
if (control != null && !BindingHelper.IsDataBound(control, UIElement.IsEnabledProperty))
{
control.IsEnabled = canExecute;
}
#endif
}
/// <summary>
/// Forces an update of the IsEnabled state.
/// </summary>
public void UpdateEnabledState()
{
if (AssociatedObject == null)
{
return;
}
var canExecute = true;
if (_guard != null)
{
var parameterValues = DetermineParameters(_guard);
canExecute = (bool)_guard.Invoke(Target, parameterValues);
}
#if NETFX_CORE
var control = AssociatedObject as Control;
if (control != null && !BindingHelper.IsDataBound(control, Control.IsEnabledProperty))
{
control.IsEnabled = canExecute;
}
#else
var control = AssociatedObject as FrameworkElement;
if (control != null && !BindingHelper.IsDataBound(control, UIElement.IsEnabledProperty))
{
control.IsEnabled = canExecute;
}
#endif
}
private static void RefreshDataBindingsOnActions(TriggerActionCollection actions)
{
foreach (var target in actions)
{
foreach (var property in BindingHelper.GetDependencyProperties(target.GetType()))
{
BindingHelper.RefreshBinding(target, property);
}
}
}
/// <summary>
/// Creates a window.
/// </summary>
/// <param name="rootModel">The view model.</param>
/// <param name="isDialog">Whethor or not the window is being shown as a dialog.</param>
/// <param name="context">The view context.</param>
/// <param name="settings">The optional popup settings.</param>
/// <returns>The window.</returns>
protected virtual Window CreateWindow(object rootModel, bool isDialog, string context,
IDictionary <string, object> settings)
{
var view = EnsureWindow(rootModel, _viewModelLocator.LocateForModel(rootModel, context), isDialog);
_viewModelBinder.Bind(rootModel, view, context);
var haveDisplayName = rootModel as IHaveDisplayName;
if (haveDisplayName != null && !BindingHelper.IsDataBound(view, Window.TitleProperty))
{
var binding = new Binding("DisplayName")
{
Mode = BindingMode.OneWay
};
view.SetBinding(Window.TitleProperty, binding);
}
ApplySettings(view, settings);
var conductor = new WindowConductor(rootModel, view);
return(conductor.View);
}
