private void changeButton_Click(object sender, RoutedEventArgs e)
{
DataRowView row = (DataRowView)dataGrid.Items.CurrentItem;
int itemID = Convert.ToInt32(row[0]);
SubscriptionsAdd subscriptionsWindow = new SubscriptionsAdd(false, row);
subscriptionsWindow.ShowDialog();
}
private void addButton_Click(object sender, RoutedEventArgs e)
{
SubscriptionsAdd subscriptionsWindow = new SubscriptionsAdd(true);
subscriptionsWindow.ShowDialog();
}