feat(Select): redesign OnBeforeSelectedItemChange logic

[ArgoZhang]

Link issues

fixes #6198

Summary By Copilot

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

Redesign the selection change workflow by separating the pre-change callback and optional Swal confirmation steps, update the default behavior of ShowSwal, and refresh parameter documentation.

Enhancements:

• Redesign OnBeforeSelectedItemChange handling to separate pre-change callback and Swal confirmation steps
• Change default value of ShowSwal to false
• Update XML docs for OnBeforeSelectedItemChange and ShowSwal parameters
• Add Chinese comments alongside existing English documentation

[sourcery-ai]

Reviewer's Guide

This PR redesigns the Select component’s pre-selection workflow by decoupling the OnBeforeSelectedItemChange callback from the Swal confirmation step, updating default behaviors, and streamlining the OnClickItem handler implementation.

File-Level Changes

Change	Details	Files
Updated parameter defaults and documentation for pre-change callback and confirmation flag	Revised XML docs for OnBeforeSelectedItemChange to include bilingual comments Changed ShowSwal default from true to false and removed its initializer Updated ShowSwal XML comments to reflect new default value	src/BootstrapBlazor/Components/Select/Select.razor.cs
Refactored OnClickItem flow to separate callback and modal logic	Isolated OnBeforeSelectedItemChange invocation with early exit on false Moved Swal modal creation and display inside a conditional block checking ret and ShowSwal Adjusted SwalFooter handling and awaited ShowModal result to set ret Streamlined final ret check to update selected item	src/BootstrapBlazor/Components/Select/Select.razor.cs

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#6198	Redesign the OnBeforeSelectedItemChange logic in the Select component.	✅

Possibly linked issues

• feat(Select): redesign OnBeforeSelectedItemChange logic #6198: The PR redesigns the OnBeforeSelectedItemChange logic in the Select component as requested in the issue.
• feat(Select): redesign OnBeforeSelectedItemChange logic #6198: The PR redesigns the logic for OnBeforeSelectedItemChange in the Select component, addressing the unexpected triggering of OnSelectedItemChanged described in the issue.
• feat(Select): redesign OnBeforeSelectedItemChange logic #6198: The PR redesigns the Select component's item selection logic, which is related to the issue's problem with async calls preventing UI refresh in the OnSelectedItemChanged event.

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[sourcery-ai]

Hey @ArgoZhang - I've reviewed your changes - here's some feedback:

• The default for ShowSwal was flipped from true to false, which is a breaking change—please call this out in your release notes or consider a major version bump.
• The mixed Chinese/English XML documentation on OnBeforeSelectedItemChange could be consolidated to match the project's language conventions.
• You might simplify OnClickItem by using early returns when ret is false or by extracting the Swal modal setup into a helper to reduce nesting.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (7ba4e74) to head (4d6fd47).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6199   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          704       704           
  Lines        31100     31100           
  Branches      4394      4394           
=========================================
  Hits         31100     31100           

Flag	Coverage Δ
BB	100.00% <100.00%> (?)

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