protected virtual void DeleteButton_Click()
{
if (DataGrid.SelectedItem == null)
{
return;
}
string message = null;
bool closeOnSuccess = false;
if (typeof(T) == typeof(Publisher))
{
message = $"Are you sure you want to delete publisher '{DataGrid.SelectedItem as Publisher}'?\n\n"
+ "WARNING! Deleting a publisher will delete all its publications!";
}
else if (typeof(T) == typeof(Employee))
{
message = $"Are you sure you want to delete employee {DataGrid.SelectedItem as Employee}?\n\n"
+ "WARNING! Deleting an employee will delete all his user accounts!";
}
else if (typeof(T) == typeof(User))
{
var user = DataGrid.SelectedItem as User;
if (user.Equals(EntitiesManager.CurrentUser))
{
closeOnSuccess = true;
message = $"Are you sure you want to delete the current logged-in user? (implies logout)";
}
else
{
message = $"Are you sure you want to delete user '{DataGrid.SelectedItem as User}'?";
}
}
else if (typeof(T) == typeof(LibraryItem))
{
message = $"Are you sure you want to delete {DataGrid.SelectedItem as LibraryItem}?";
}
else
{
message = $"Are you sure you want to delete selected {typeof(T).Name} (Id = {(DataGrid.SelectedItem as Entity<T>).EntityId()})?";
}
MessageBoxResult result = GUIUtils.ShowMessage(message, MessageBoxType.WarningQuestion);
if (result.In(MessageBoxResult.Cancel, MessageBoxResult.No))
{
return;
}
if (EntitiesManager.Delete(DataGrid.SelectedItem as T) && closeOnSuccess)
{
Close();
}
}
protected override void OnClosing(CancelEventArgs e)
{
base.OnClosing(e);
if (btnSave.IsEnabled)
{
MessageBoxResult result =
GUIUtils.ShowMessage("Are you sure you want to leave without saving?",
MessageBoxType.Question);
if (result.In(MessageBoxResult.Cancel, MessageBoxResult.No))
{
e.Cancel = true;
}
}
}