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Suppress VisibleCountChanged firing when updating grid

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This commit is contained in:
MBucari 2023-03-17 17:51:39 -06:00
parent 56de1e7659
commit 2725340994
1 changed files with 11 additions and 4 deletions
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15
Source/LibationAvalonia/ViewModels/ProductsDisplayViewModel.cs
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@ -5,6 +5,7 @@ using Avalonia.Threading;
using DataLayer; using DataLayer;
using LibationAvalonia.Dialogs.Login; using LibationAvalonia.Dialogs.Login;
using LibationUiBase.GridView; using LibationUiBase.GridView;
using NPOI.SS.Formula.Functions;
using ReactiveUI; using ReactiveUI;
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
@ -116,17 +117,20 @@ namespace LibationAvalonia.ViewModels
//Create the filtered-in list before adding entries to avoid a refresh //Create the filtered-in list before adding entries to avoid a refresh
FilteredInGridEntries = QueryResults(geList, FilterString); FilteredInGridEntries = QueryResults(geList, FilterString);
SOURCE.AddRange(geList.OrderByDescending(e => e.DateAdded)); SOURCE.AddRange(geList.OrderByDescending(e => e.DateAdded));
GridEntries.CollectionChanged += (_, _) GridEntries.CollectionChanged += GridEntries_CollectionChanged;
=> VisibleCountChanged?.Invoke(this, GridEntries.OfType<ILibraryBookEntry>().Count()); GridEntries_CollectionChanged();
VisibleCountChanged?.Invoke(this, GridEntries.OfType<ILibraryBookEntry>().Count());
} }
private void GridEntries_CollectionChanged(object sender = null, EventArgs e = null)
=> VisibleCountChanged?.Invoke(this, GridEntries.OfType<ILibraryBookEntry>().Count());
/// <summary> /// <summary>
/// Call when there's been a change to the library /// Call when there's been a change to the library
/// </summary> /// </summary>
internal async Task UpdateGridAsync(List<LibraryBook> dbBooks) internal async Task UpdateGridAsync(List<LibraryBook> dbBooks)
{ {
GridEntries.CollectionChanged -= GridEntries_CollectionChanged;
#region Add new or update existing grid entries #region Add new or update existing grid entries
//Add absent entries to grid, or update existing entry //Add absent entries to grid, or update existing entry
@ -176,6 +180,9 @@ namespace LibationAvalonia.ViewModels
await Filter(FilterString); await Filter(FilterString);
GC.Collect(GC.MaxGeneration, GCCollectionMode.Aggressive, true, true); GC.Collect(GC.MaxGeneration, GCCollectionMode.Aggressive, true, true);
GridEntries.CollectionChanged += GridEntries_CollectionChanged;
GridEntries_CollectionChanged();
} }
private void RemoveBooks(IEnumerable<ILibraryBookEntry> removedBooks, IEnumerable<ISeriesEntry> removedSeries) private void RemoveBooks(IEnumerable<ILibraryBookEntry> removedBooks, IEnumerable<ISeriesEntry> removedSeries)