public static IssueData CreateIssue()
{
return(new IssueData(
subject: GetSubject(),
user: GetFrom(),
created: DateTime.Today.AddDays(-rnd.Next(30)),
votes: rnd.Next(100),
priority: OutlookDataGenerator.GetPriority()));
}
public MainWindow()
{
InitializeComponent();
var source = new InfiniteAsyncSource()
{
ElementType = typeof(IssueData)
};
Unloaded += (o, e) => {
source.Dispose();
};
var getSourceTask = Task.Run(() => {
return(Enumerable
.Range(0, 10000000)
.Select(i => OutlookDataGenerator.CreateIssue())
.ToList());
});
source.FetchRows += (o, e) => {
e.Result = FetchRows(e, getSourceTask);
};
source.GetTotalSummaries += (o, e) => {
e.Result = GetTotalSummaries(e, getSourceTask);
};
source.GetUniqueValues += (o, e) => {
if (e.PropertyName == "Priority")
{
e.Result = Task.FromResult(Enum.GetValues(typeof(Priority)).Cast <object>().ToArray());
}
else
{
throw new InvalidOperationException();
}
};
grid.ItemsSource = source;
}
