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Add thread safety and comments re threading

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This commit is contained in:
Michael Bucari-Tovo 2025-03-03 10:11:17 -07:00
parent ef3c71a939
commit b36e110b49
4 changed files with 45 additions and 15 deletions
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26
Source/LibationWinForms/GridView/ProductsGrid.cs
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@ -1,9 +1,9 @@
using DataLayer;
using Dinah.Core;
using Dinah.Core.Collections.Generic;
using Dinah.Core.WindowsDesktop.Forms;
using LibationFileManager;
using LibationUiBase.GridView;
using NPOI.SS.Formula.Functions;
using System;
using System.Collections.Generic;
using System.Data;
@ -216,8 +216,12 @@ namespace LibationWinForms.GridView
internal async Task BindToGridAsync(List<LibraryBook> dbBooks)
{
var geList = await LibraryBookEntry<WinFormsEntryStatus>.GetAllProductsAsync(dbBooks);
//Get the UI thread's synchronization context and set it on the current thread to ensure
//it's available for GetAllProductsAsync and GetAllSeriesEntriesAsync
var sc = Invoke(() => System.Threading.SynchronizationContext.Current);
System.Threading.SynchronizationContext.SetSynchronizationContext(sc);
var geList = await LibraryBookEntry<WinFormsEntryStatus>.GetAllProductsAsync(dbBooks);
var seriesEntries = await SeriesEntry<WinFormsEntryStatus>.GetAllSeriesEntriesAsync(dbBooks);
geList.AddRange(seriesEntries);
@ -232,9 +236,12 @@ namespace LibationWinForms.GridView
foreach (var child in series.Children)
geList.Insert(++seriesIndex, child);
}
System.Threading.SynchronizationContext.SetSynchronizationContext(null);
bindingList = new GridEntryBindingList(geList);
bindingList.CollapseAll();
//The syncBindingSource ensures that the IGridEntry list is added on the UI thread
syncBindingSource.DataSource = bindingList;
VisibleCountChanged?.Invoke(this, bindingList.GetFilteredInItems().Count());
}
@ -252,14 +259,19 @@ namespace LibationWinForms.GridView
//Add absent entries to grid, or update existing entry
var allEntries = bindingList.AllItems().BookEntries();
var allEntries = bindingList.AllItems().BookEntries().ToDictionarySafe(b => b.AudibleProductId);
var seriesEntries = bindingList.AllItems().SeriesEntries().ToList();
var parentedEpisodes = dbBooks.ParentedEpisodes().ToHashSet();
//Get the UI thread's synchronization context and set it on the current thread to ensure
//it's available for creation of new IGridEntry items during upsert
var sc = Invoke(() => System.Threading.SynchronizationContext.Current);
System.Threading.SynchronizationContext.SetSynchronizationContext(sc);
bindingList.RaiseListChangedEvents = false;
foreach (var libraryBook in dbBooks.OrderBy(e => e.DateAdded))
{
var existingEntry = allEntries.FindByAsin(libraryBook.Book.AudibleProductId);
var existingEntry = allEntries.TryGetValue(libraryBook.Book.AudibleProductId, out var e) ? e : null;
if (libraryBook.Book.IsProduct())
{
@ -289,6 +301,10 @@ namespace LibationWinForms.GridView
.BookEntries()
.ExceptBy(dbBooks.Select(lb => lb.Book.AudibleProductId), ge => ge.AudibleProductId);
removedBooks = bindingList
.AllItems()
.BookEntries().Take(10).ToList();
RemoveBooks(removedBooks);
gridEntryDataGridView.FirstDisplayedScrollingRowIndex = topRow;