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feat(Table): improve performance for GetVisibleColumns function #6886

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Merged
merged 4 commits into from
Oct 13, 2025
Merged

feat(Table): improve performance for GetVisibleColumns function #6886

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8b4818f
feat(table): 减少linq迭代器对象的创建,避免Enumerable.Any处于嵌套循环中
kimdiego2098 Oct 12, 2025
4fc264a
refactor: 重构代码
ArgoZhang Oct 13, 2025
cba3118
refactor: 重构代码
ArgoZhang Oct 13, 2025
5ddbe23
refactor: 移除变量
ArgoZhang Oct 13, 2025
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4 changes: 2 additions & 2 deletions src/BootstrapBlazor/Components/Table/Table.razor.Toolbar.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -467,6 +467,7 @@ public Func<TItem, bool>? ShowDeleteButtonCallback
/// 获得/设置 各列是否显示状态集合
/// </summary>
private List<ColumnVisibleItem> VisibleColumns { get; } = [];
private HashSet<string> VisibleColumnNames { get; set; } = [];

/// <summary>
/// 获得当前可见列集合
Expand All @@ -475,8 +476,7 @@ public Func<TItem, bool>? ShowDeleteButtonCallback
public IEnumerable<ITableColumn> GetVisibleColumns()
{
// 不可见列
var items = VisibleColumns.Where(i => i.Visible);
return Columns.Where(i => !i.GetIgnore() && items.Any(v => v.Name == i.GetFieldName()) && ScreenSize >= i.ShownWithBreakPoint);
return Columns.Where(i => ScreenSize >= i.ShownWithBreakPoint && !i.GetIgnore() && VisibleColumnNames.Contains(i.GetFieldName()));
}

private bool GetColumnsListState(ColumnVisibleItem item) => VisibleColumns.Find(i => i.Name == item.Name) is { Visible: true } && VisibleColumns.Where(i => i.Visible).DistinctBy(i => i.Name).Count(i => i.Visible) == 1;
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2 changes: 2 additions & 0 deletions src/BootstrapBlazor/Components/Table/Table.razor.cs
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Expand Up @@ -1278,6 +1278,8 @@ private void InternalResetVisibleColumns(List<ITableColumn> columns, IEnumerable
}
VisibleColumns.Clear();
VisibleColumns.AddRange(cols);
VisibleColumnNames = VisibleColumns.Where(i => i.Visible).Select(a => a.Name).ToHashSet();

}

/// <summary>
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