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perf(Table): improve performance for select all on header #4740

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merged 1 commit into from
Nov 26, 2024
Merged

perf(Table): improve performance for select all on header #4740

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8 changes: 3 additions & 5 deletions src/BootstrapBlazor/Components/Table/Table.razor.Checkbox.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,22 +42,20 @@ protected CheckboxState HeaderCheckState()
var filterRows = ShowRowCheckboxCallback == null ? Rows : Rows.Where(ShowRowCheckboxCallback);
if (filterRows.Any())
{
if (filterRows.All(AnyRow))
if (!filterRows.Except(SelectedRows).Any())
{
// 所有行被选中
// all rows are selected
ret = CheckboxState.Checked;
}
else if (filterRows.Any(AnyRow))
else if (filterRows.Any(row => SelectedRows.Any(i => Equals(i, row))))
{
// 任意一行被选中
// any one row is selected
ret = CheckboxState.Indeterminate;
}
}
return ret;

bool AnyRow(TItem row) => SelectedRows.Any(i => Equals(i, row));
}

/// <summary>
Expand Down Expand Up @@ -104,7 +102,7 @@ protected CheckboxState HeaderCheckState()
/// <param name="val"></param>
protected virtual async Task OnHeaderCheck(CheckboxState state, TItem val)
{
SelectedRows.RemoveAll(x => Rows.Any(a => Equals(a, x)));
SelectedRows.RemoveAll(Rows.Intersect(SelectedRows).Contains);
if (state == CheckboxState.Checked)
{
SelectedRows.AddRange(ShowRowCheckboxCallback == null ? Rows : Rows.Where(ShowRowCheckboxCallback));
Expand Down