private void DeleteButton_OnClick(object sender, RoutedEventArgs e)
{
for (var vis = sender as Visual; vis != null; vis = VisualTreeHelper.GetParent(vis) as Visual)
{
if (vis is DataGridRow)
{
var row = (DataGridRow)vis;
Tarefas.RemoveAt(row.GetIndex());
}
}
DeletarButton.Content = "Deletar Tarefa";
DeletarColum.Visibility = Visibility.Hidden;
}
