private void OnLoad(object sender, EventArgs e)
{
scroller = scroller ?? new KeepToCurrentScrollViewer(Root);
IEnumerable <IViewableObject> messageSource = MessageSource;
if (LoadInReverse)
{
var count = 0;
var messages = messageSource
.Reverse()
.Select(x => x.View)
.GetEnumerator();
while (count <= ApplicationSettings.PreloadMessageAmount && messages.MoveNext())
{
count++;
AddInReverseAsync(messages.Current, DispatcherPriority.DataBind);
}
if (count >= ApplicationSettings.PreloadMessageAmount)
{
var delayTimer = new DispatcherTimer(DispatcherPriority.DataBind)
{
Interval = TimeSpan.FromMilliseconds(450)
};
delayTimer.Tick += (o, args) =>
{
var batch = count + 25;
while (count < batch)
{
if (messages.MoveNext())
{
count++;
scroller?.StabilizeNextScroll();
AddInReverseAsync(messages.Current, DispatcherPriority.DataBind);
}
else
{
delayTimer.Stop();
break;
}
}
};
delayTimer.Start();
}
loaded = true;
return;
}
messageSource
.Select(x => x.View)
.Each(AddAsync);
loaded = true;
}
private void OnLoad(object sender, EventArgs e)
{
scroller = scroller ?? new KeepToCurrentScrollViewer(Root);
IEnumerable<IViewableObject> messageSource = MessageSource;
if (LoadInReverse)
{
var count = 0;
var messages = messageSource
.Reverse()
.Select(x => x.View)
.GetEnumerator();
while (count <= ApplicationSettings.PreloadMessageAmount && messages.MoveNext())
{
count++;
AddInReverseAsync(messages.Current, DispatcherPriority.DataBind);
}
if (count >= ApplicationSettings.PreloadMessageAmount)
{
var delayTimer = new DispatcherTimer(DispatcherPriority.DataBind)
{
Interval = TimeSpan.FromMilliseconds(450)
};
delayTimer.Tick += (o, args) =>
{
var batch = count + 25;
while (count < batch)
{
if (messages.MoveNext())
{
count++;
scroller?.StabilizeNextScroll();
AddInReverseAsync(messages.Current, DispatcherPriority.DataBind);
}
else
{
delayTimer.Stop();
break;
}
}
};
delayTimer.Start();
}
loaded = true;
return;
}
messageSource
.Select(x => x.View)
.Each(AddAsync);
loaded = true;
}
private void OnLoad(object sender, EventArgs e)
{
scroller = scroller ?? new KeepToCurrentScrollViewer(Root);
IEnumerable<IViewableObject> messageSource = MessageSource;
if (LoadInReverse)
{
messageSource
.Reverse()
.Select(x => x.View)
.Each(AddInReverseAsync);
loaded = true;
return;
}
messageSource
.Select(x => x.View)
.Each(AddAsync);
loaded = true;
}
