blob: c539273d924361a8ed3622b23011b51a12ea4143 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Threading;
public static class ObservableCollectionExtensions
{
public static ObservableCollection<T> ToObservableCollectionAsyncIdle<T>(this ObservableCollection<T> source)
{
var copy = source.ToList();
ObservableCollection<T> result = new ObservableCollection<T>();
foreach (var item in copy)
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
result.Add(item);
}), DispatcherPriority.ContextIdle);
}
return result;
}
public static void ReloadAsyncIdle<T>(this ObservableCollection<T> source, Action<int, int> onProgress, Action onComplete = null)
{
var copy = source.ToList();
source.Clear();
int count = copy.Count;
int completed = 0;
foreach (var item in copy)
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
source.Add(item);
completed++;
onProgress?.Invoke(completed, count);
if (completed == count)
{
onComplete?.Invoke();
}
}), DispatcherPriority.ContextIdle);
}
}
}
|
