public bool?ShowDialogView(IViewModelBase viewModel)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
var result = default(bool?);
if (!Dispatcher.CheckAccess())
{
Dispatcher.Invoke(() => result = ShowDialogView(viewModel));
}
else
{
var viewType = _viewModel2View.Single(item => item.ViewModel == viewModel.GetType()).View;
try
{
var view = (Window)Activator.CreateInstance(viewType);
view.DataContext = viewModel;
view.Closed += (sender, e) => viewModel.Dispose();
result = view.ShowDialog();
}
catch (Exception ex)
{
ShowMessage(ex.ToString(), "Erro", MsgBoxButton.OK, MsgBoxIcon.Error);
}
}
return(result);
}
/// <summary>Constructor</summary>
/// <param name="viewModel">The model (must implement IViewModelBase) that will use ViewModelStateHelper</param>
public ViewModelStateHelper(IViewModelBase viewModel)
{
if (viewModel == null)
{
throw new ArgumentNullException();
}
_viewModelName = viewModel.GetType().Name;
}
public void NavigateToViewModel(
IViewModelBase viewModelBase,
bool clearBackStack,
IReadOnlyList <NavigationParameterModel>?parameters)
{
var type = _viewLocator.GetTargetType(viewModelBase.GetType(), ViewType.Activity);
StartActivityImpl(type, clearBackStack, parameters);
}
public virtual object GetView(IViewModelBase viewModel, ViewType viewType)
{
var targetType = GetTargetType(viewModel.GetType(), viewType);
var view = Activator.CreateInstance(targetType);
if (view is IBindable bindable)
{
bindable.SetDataContext(viewModel);
}
return(view);
}
private Page GetView(IViewModelBase viewmodel)
{
var attrib = viewmodel.GetType().GetCustomAttributes(typeof(ViewTypeAttribute), false).FirstOrDefault() as ViewTypeAttribute;
if (attrib != null && attrib.PageType != null)
{
var page = (Page)Activator.CreateInstance(attrib.PageType);
FillViewModel(viewmodel, page);
page.DataContext = viewmodel;
return(page);
}
return(null);
}
public void ShowView(IViewModelBase viewModel, Action closeAction = null)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
if (!Dispatcher.CheckAccess())
{
Dispatcher.Invoke(() => ShowView(viewModel, closeAction));
return;
}
try
{
var viewType = _viewModel2View.Single(item => item.ViewModel == viewModel.GetType()).View;
var view = (Window)Activator.CreateInstance(viewType);
view.DataContext = viewModel;
view.Closed += (sender, args) =>
{
if (closeAction != null)
{
closeAction.Invoke();
}
viewModel.Dispose();
};
view.Show();
}
catch (Exception ex)
{
ShowMessage(ex.ToString(), "Erro", MsgBoxButton.OK, MsgBoxIcon.Error);
}
}