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@ArgoZhang ArgoZhang commented Apr 10, 2025

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fixes #5805

Summary By Copilot

This pull request includes several updates to the Select component in the BootstrapBlazor library, as well as corresponding unit tests. The most important changes involve fixing a typo in method names, adding a new private field, and updating the logic for handling virtualized items.

Updates to Select component:

Unit tests:

  • test/UnitTest/Components/SelectTest.cs: Renamed the test method DefaultVirtualizeItemText_Ok to DefaultVirtualizeItemText_Null and added a new test method DefaultVirtualizeItemText_Ok to verify the behavior of virtualized items. [1] [2]

Version update:

Regression?

  • Yes
  • No

Risk

  • High
  • Medium
  • Low

Verification

  • Manual (required)
  • Automated

Packaging changes reviewed?

  • Yes
  • No
  • N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

  • Doc is updated/provided or not needed
  • Demo is updated/provided or not needed
  • Merge the latest code from the main branch

Summary by Sourcery

Improve the Select component's handling of virtualized items by fixing display text logic and method naming

New Features:

  • Implement more robust handling of default text for virtualized Select items

Bug Fixes:

  • Correct the display text for virtualized Select items when no default text is provided
  • Fix a typo in the method name from 'GetItemByVirtulized' to 'GetItemByVirtualized'

Enhancements:

  • Add a new private field to manage default virtualized item text
  • Update item selection logic for virtualized Select components

Tests:

  • Add comprehensive test cases for DefaultVirtualizeItemText behavior
  • Verify virtualized item selection and display logic

@ArgoZhang ArgoZhang requested a review from Copilot April 10, 2025 10:04
@bb-auto bb-auto bot added the bug Something isn't working label Apr 10, 2025
@bb-auto bb-auto bot added this to the v9.5.0 milestone Apr 10, 2025
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sourcery-ai bot commented Apr 10, 2025

Reviewer's Guide by Sourcery

This pull request addresses an issue in the Select component related to displaying the correct text for virtualized items. It includes a typo fix, updates to initialization and click handling logic, and corresponding unit tests. Additionally, the project version has been updated.

Sequence diagram for OnClickItem method with virtualization

sequenceDiagram
    participant SelectComponent
    participant SelectedItem

    SelectComponent->>SelectComponent: OnClickItem(item)
    SelectComponent->>SelectComponent: _defaultVirtualizedItemText = item.Text
    SelectComponent->>SelectComponent: await SelectedItemChanged(item)
Loading

Updated class diagram for the Select component

classDiagram
    class Select {
        -string _defaultVirtualizedItemText
        +OnInitialized()
        +OnClickItem(SelectedItem item)
        +GetItemByVirtualized()
    }
    note for Select "This class has been updated to handle virtualized items correctly."
Loading

File-Level Changes

Change Details Files
Introduces a new private field to store the default text for virtualized items in the Select component.
  • Added _defaultVirtualizedItemText field.
src/BootstrapBlazor/Components/Select/Select.razor.cs
Fixes a typo in the method name used to retrieve virtualized items.
  • Corrected GetItemByVirtulized to GetItemByVirtualized.
src/BootstrapBlazor/Components/Select/Select.razor.cs
Updates the OnInitialized method to properly set the default text for virtualized items.
  • Initializes _defaultVirtualizedItemText based on DefaultVirtualizeItemText or CurrentValueAsString.
src/BootstrapBlazor/Components/Select/Select.razor.cs
Modifies the OnClickItem method to update the default virtualized item text when an item is clicked.
  • Updates _defaultVirtualizedItemText with the clicked item's text.
src/BootstrapBlazor/Components/Select/Select.razor.cs
Updates and adds unit tests to verify the behavior of the DefaultVirtualizeItemText property.
  • Renamed DefaultVirtualizeItemText_Ok to DefaultVirtualizeItemText_Null.
  • Added a new test method DefaultVirtualizeItemText_Ok.
test/UnitTest/Components/SelectTest.cs
Updates the version of the BootstrapBlazor project.
  • Incremented version from 9.5.5 to 9.5.6-beta01.
src/BootstrapBlazor/BootstrapBlazor.csproj

Assessment against linked issues

Issue Objective Addressed Explanation
#5805 When virtual scrolling is enabled in the Select component, the displayed value of the selected option should update correctly when the selection changes.

Possibly linked issues


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Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

Files not reviewed (1)
  • src/BootstrapBlazor/BootstrapBlazor.csproj: Language not supported
Comments suppressed due to low confidence (1)

test/UnitTest/Components/SelectTest.cs:764

  • [nitpick] The test method name 'DefaultVirtualizeItemText_Null' may be misleading since the test sets a non-null DefaultVirtualizeItemText. Consider renaming it to better reflect the scenario being tested.
public void DefaultVirtualizeItemText_Null()

@ArgoZhang ArgoZhang merged commit d88b5a2 into main Apr 10, 2025
4 checks passed
@ArgoZhang ArgoZhang deleted the refactor-select branch April 10, 2025 10:04
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Hey @ArgoZhang - I've reviewed your changes - here's some feedback:

Overall Comments:

  • Consider if _defaultVirtualizedItemText should be nullable to better reflect its possible states.
  • The unit test renaming seems a bit odd - can you explain why DefaultVirtualizeItemText_Ok was renamed to DefaultVirtualizeItemText_Null?
Here's what I looked at during the review
  • 🟡 General issues: 1 issue found
  • 🟢 Security: all looks good
  • 🟡 Testing: 1 issue found
  • 🟢 Complexity: all looks good
  • 🟢 Documentation: all looks good

Sourcery is free for open source - if you like our reviews please consider sharing them ✨
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.

}
if (ret)
{
_defaultVirtualizedItemText = item.Text;
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question: Review the update of default virtualized text after an item click.

Updating _defaultVirtualizedItemText on item click changes what is considered the default text. Ensure that this behavior is intended or consider renaming the field to better reflect its dynamic role.

});
pb.Add(a => a.Value, "3");
pb.Add(a => a.IsVirtualize, true);
pb.Add(a => a.DefaultVirtualizeItemText, "Test3");
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suggestion (testing): Suggest adding a test case for null CurrentValueAsString with DefaultVirtualizeItemText set.

It would be beneficial to have a test case where CurrentValueAsString is null and DefaultVirtualizeItemText is set to a non-null value to ensure the component behaves as expected in this scenario. This would cover the edge case where the initial value is null but a default display text is provided for virtualized items.

Suggested implementation:

    [Fact]
    public void DefaultVirtualizeItemText_WithNullCurrentValueAsString()
    {
        var cut = Context.RenderComponent<Select<string>>(pb =>
        {
            pb.Add(a => a.Items, new SelectedItem[]
            {
                new("1", "Test1"),
                new("2", "Test2")
            });
            // set Value to null to simulate a null CurrentValueAsString
            pb.Add(a => a.Value, null);
            pb.Add(a => a.IsVirtualize, true);
            pb.Add(a => a.DefaultVirtualizeItemText, "Test3");
        });

        // Assert that the default virtualize text appears in the markup when Value is null.
        Assert.Contains("Test3", cut.Markup);
    }

Ensure that the CSS selectors used in the test (if any) are correct for your component.
Also, adjust the test case name or assertions if your component renders the default virtualize text differently.

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codecov bot commented Apr 10, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (9f4c21d) to head (55ab8ac).
Report is 1 commits behind head on main.

Additional details and impacted files
@@            Coverage Diff            @@
##              main     #5806   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          660       660           
  Lines        30111     30117    +6     
  Branches      4250      4250           
=========================================
+ Hits         30111     30117    +6     

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bug(Select): 组件开启虚拟滚动后无法切换候选项显示值

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