244 lines
8.7 KiB
C#
244 lines
8.7 KiB
C#
using System;
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using System.Drawing;
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using System.Linq;
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using System.Windows.Forms;
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using ApplicationServices;
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using DataLayer;
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using Dinah.Core.Collections.Generic;
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using Dinah.Core.DataBinding;
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namespace LibationWinForm
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{
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// INSTRUCTIONS TO UPDATE DATA_GRID_VIEW
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// - delete current DataGridView
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// - view > other windows > data sources
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// - refresh
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// OR
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// - Add New Data Source
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// Object. Next
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// LibationWinForm
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// AudibleDTO
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// GridEntry
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// - go to Design view
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// - click on Data Sources > ProductItem. drowdown: DataGridView
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// - drag/drop ProductItem on design surface
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public partial class ProductsGrid : UserControl
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{
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public event EventHandler<int> VisibleCountChanged;
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private DataGridView dataGridView;
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private LibationContext context;
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public ProductsGrid()
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{
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InitializeComponent();
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Disposed += (_, __) => context?.Dispose();
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}
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private bool hasBeenDisplayed = false;
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public void Display()
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{
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if (hasBeenDisplayed)
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return;
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hasBeenDisplayed = true;
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dataGridView = gridEntryDataGridView;
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dataGridView.Dock = DockStyle.Fill;
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dataGridView.AllowUserToAddRows = false;
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dataGridView.AllowUserToDeleteRows = false;
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dataGridView.AutoGenerateColumns = false;
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dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
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dataGridView.DefaultCellStyle.WrapMode = DataGridViewTriState.True;
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dataGridView.ReadOnly = true;
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dataGridView.RowHeadersVisible = false;
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// adjust height for 80x80 pictures.
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// this must be done before databinding. or can alter later by iterating through rows
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dataGridView.RowTemplate.Height = 82;
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dataGridView.CellFormatting += replaceFormatted;
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dataGridView.CellFormatting += hiddenFormatting;
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// sorting breaks filters. must reapply filters after sorting
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dataGridView.Sorted += (_, __) => filter();
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{ // add tag buttons
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var editUserTagsButton = new DataGridViewButtonColumn { HeaderText = "Edit Tags" };
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dataGridView.Columns.Add(editUserTagsButton);
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// add image and handle click
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dataGridView.CellPainting += paintEditTag_TextAndImage;
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dataGridView.CellContentClick += dataGridView_GridButtonClick;
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}
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for (var i = dataGridView.ColumnCount - 1; i >= 0; i--)
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{
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DataGridViewColumn col = dataGridView.Columns[i];
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// initial HeaderText is the lookup name from GridEntry class. any formatting below won't change this
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col.Name = col.HeaderText;
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if (!(col is DataGridViewImageColumn || col is DataGridViewButtonColumn))
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col.SortMode = DataGridViewColumnSortMode.Automatic;
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col.HeaderText = col.HeaderText.Replace("_", " ");
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col.Width = col.Name switch
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{
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nameof(GridEntry.Cover) => 80,
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nameof(GridEntry.Title) => col.Width * 2,
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nameof(GridEntry.Misc) => (int)(col.Width * 1.35),
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var n when n.In(nameof(GridEntry.My_Rating), nameof(GridEntry.Product_Rating)) => col.Width + 8,
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_ => col.Width
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};
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}
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//
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// transform into sorted GridEntry.s BEFORE binding
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//
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context = LibationContext.Create();
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var lib = context.GetLibrary_Flat_WithTracking();
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// if no data. hide all columns. return
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if (!lib.Any())
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{
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for (var i = dataGridView.ColumnCount - 1; i >= 0; i--)
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dataGridView.Columns.RemoveAt(i);
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return;
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}
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var orderedGridEntries = lib
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.Select(lb => new GridEntry(lb)).ToList()
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// default load order
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.OrderByDescending(ge => ge.Purchase_Date)
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//// more advanced example: sort by author, then series, then title
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//.OrderBy(ge => ge.Authors)
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// .ThenBy(ge => ge.Series)
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// .ThenBy(ge => ge.Title)
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.ToList();
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//
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// BIND
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//
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gridEntryBindingSource.DataSource = orderedGridEntries.ToSortableBindingList();
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//
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// FILTER
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//
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filter();
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}
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private void paintEditTag_TextAndImage(object sender, DataGridViewCellPaintingEventArgs e)
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{
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// DataGridView Image for Button Column: https://stackoverflow.com/a/36253883
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if (e.RowIndex < 0 || !(((DataGridView)sender).Columns[e.ColumnIndex] is DataGridViewButtonColumn))
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return;
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var gridEntry = getGridEntry(e.RowIndex);
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var displayTags = gridEntry.TagsEnumerated.ToList();
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if (displayTags.Any())
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dataGridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = string.Join("\r\n", displayTags);
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else // no tags: use image
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{
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// clear tag text
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dataGridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = "";
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// images from: icons8.com -- search: tags
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var image = Properties.Resources.edit_tags_25x25;
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e.Paint(e.CellBounds, DataGridViewPaintParts.All);
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var w = image.Width;
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var h = image.Height;
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var x = e.CellBounds.Left + (e.CellBounds.Width - w) / 2;
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var y = e.CellBounds.Top + (e.CellBounds.Height - h) / 2;
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e.Graphics.DrawImage(image, new Rectangle(x, y, w, h));
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e.Handled = true;
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}
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}
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private void dataGridView_GridButtonClick(object sender, DataGridViewCellEventArgs e)
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{
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// handle grid button click: https://stackoverflow.com/a/13687844
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if (e.RowIndex < 0)
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return;
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if (sender != dataGridView)
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throw new Exception($"{nameof(dataGridView_GridButtonClick)} has incorrect sender ...somehow");
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if (!(dataGridView.Columns[e.ColumnIndex] is DataGridViewButtonColumn))
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return;
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var liveGridEntry = getGridEntry(e.RowIndex);
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// EditTagsDialog should display better-formatted title
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liveGridEntry.TryGetFormatted(nameof(liveGridEntry.Title), out string value);
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var editTagsForm = new EditTagsDialog(value, liveGridEntry.Tags);
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if (editTagsForm.ShowDialog() != DialogResult.OK)
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return;
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var qtyChanges = context.UpdateTags(liveGridEntry.GetBook(), editTagsForm.NewTags);
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if (qtyChanges == 0)
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return;
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// force a re-draw, and re-apply filters
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// needed to update text colors
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dataGridView.InvalidateRow(e.RowIndex);
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filter();
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}
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#region Cell Formatting
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private void replaceFormatted(object sender, DataGridViewCellFormattingEventArgs e)
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{
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var col = ((DataGridView)sender).Columns[e.ColumnIndex];
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if (col is DataGridViewTextBoxColumn textCol && getGridEntry(e.RowIndex).TryGetFormatted(textCol.Name, out string value))
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e.Value = value;
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}
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private void hiddenFormatting(object sender, DataGridViewCellFormattingEventArgs e)
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{
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var isHidden = getGridEntry(e.RowIndex).TagsEnumerated.Contains("hidden");
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dataGridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Style
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= isHidden
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? new DataGridViewCellStyle { ForeColor = Color.LightGray }
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: dataGridView.DefaultCellStyle;
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}
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#endregion
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#region filter
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string _filterSearchString;
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private void filter() => Filter(_filterSearchString);
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public void Filter(string searchString)
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{
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_filterSearchString = searchString;
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if (dataGridView.Rows.Count == 0)
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return;
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var searchResults = SearchEngineCommands.Search(searchString);
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var productIds = searchResults.Docs.Select(d => d.ProductId).ToList();
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// https://stackoverflow.com/a/18942430
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var currencyManager = (CurrencyManager)BindingContext[dataGridView.DataSource];
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currencyManager.SuspendBinding();
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{
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for (var r = dataGridView.RowCount - 1; r >= 0; r--)
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dataGridView.Rows[r].Visible = productIds.Contains(getGridEntry(r).GetBook().AudibleProductId);
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}
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currencyManager.ResumeBinding();
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VisibleCountChanged?.Invoke(this, dataGridView.Rows.Cast<DataGridViewRow>().Count(r => r.Visible));
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var luceneSearchString_debug = searchResults.SearchString;
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}
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#endregion
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private GridEntry getGridEntry(int rowIndex) => (GridEntry)dataGridView.Rows[rowIndex].DataBoundItem;
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}
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}
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