public ProgressWindowView(ProgressViewModel model)
: this()
{
DataContext = model;
}
public static void ExecuteAsyncOperation(Func<Action<OperationState>, Action, CancellationTokenSource> asyncOperation)
{
CancellationTokenSource cancelationToken = null; ;
ProgressViewModel model = new ProgressViewModel(() =>
{
if (cancelationToken != null)
{
cancelationToken.Cancel();
}
});
ProgressWindowView progressWindow = new ProgressWindowView(model);
progressWindow.Loaded += (s, e) =>
{
cancelationToken = asyncOperation(
state => App.AppContext.Dispatcher.BeginInvoke(new Action(() =>
{
if (state.Exception != null) {
progressWindow.Close();
throw state.Exception;
}
model.OperationState = state;
})),
() => App.AppContext.Dispatcher.BeginInvoke(new Action(progressWindow.Close)));
};
progressWindow.SetCurrentWindowAsOwner();
progressWindow.ShowDialog();
}