private async void GetLastPurchaseHistory(CustomerModel _customer)
{
Task <List <CustomerHistoryModel> > task = Task.Run <List <CustomerHistoryModel> >(() => {
var t = _customerDataAccess.GetAllData(Properties.Resources.GetLastOrderDetails, _customer);
return(t);
});
PreviousBookOrderCollection.Clear();
_log.Message("Getting all last purchase history from the database");
var _lastHistoryCollection = await task;
_lastHistoryCollection.ForEach(t => PreviousBookOrderCollection.Add(t));
}
private async void DeleteCustomer()
{
try
{
ErrorMsgVisibility = Visibility.Collapsed;
if (SelectedCustomer == null)
{
ErrorMsg = Properties.Resources.UserNotSelectedErrorMsg;
ErrorMsgVisibility = Visibility.Visible;
return;
}
_canDeleteUser = true;
/// Check if the selected user has taken some book
/// if the user has taken the book it will ask o confirmation msg
var _customerHasBook = PreviousBookOrderCollection.FirstOrDefault(t => t.HasBook == 1);
if (_customerHasBook != null)
{
ShowMessagePopup("This User has Book.");
}
if (_canDeleteUser)
{
await _customerDataAccess.DeleteData(SelectedCustomer, Properties.Resources.DeleteCustomer);
GetAllCustomer();
ClearAllField();
InvokeCustomerUpdateEvent();
PreviousBookOrderCollection.Clear();
_log.Message("Deleting Customer Having CustomerID :" + SelectedCustomer.CustomerId);
}
}
catch (System.Data.SqlClient.SqlException ex)
{
MessageBox.Show(ex.Message);
}
}
