/// <summary>
/// This handler handles the event when the <see cref="ITransactionRepository.GetTransactionsCompleted"/>
/// event is raised by <see cref="_transactionRepository"/>.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TransactionRepositoryGetTransactionsCompleted(object sender, GetTransactionFinishedEventArg e)
{
var graphData = GetGraphData(e.TransactionList);//Graph data is calculated in the background thread.
double income = 0;
double expense = 0;
if (e.TransactionList != null)
{
income = e.TransactionList.Where(t => t.FlowType == TransactionFlowType.Income).Sum(t => t.Amount);
expense = e.TransactionList.Where(t => t.FlowType == TransactionFlowType.Expenditure).Sum(t => t.Amount);
}
ThreadSafeInvoke(() =>
{
GraphItems = null;
_messagingService.CloseProgressMessage();
if (e.HasError)
{
_messagingService.ShowMessage(UIText.ERROR_OCCURED_MSG);
return;
}
if (e.TransactionList == null || !e.TransactionList.Any())
{
_messagingService.ShowMessage(UIText.NO_DATA_EXISTS_MSG);
return;
}
TotalExpenditure = expense;
TotalIncome = income;
var transactionList = e.TransactionList.Select(t => new TransactionViewModel(t));
GraphItems = graphData;
Transactions.AddRange(transactionList);
});
}