refactor(PopConfirmButton): add OnConfirm null check

[ArgoZhang]

Link issues

fixes #5897

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

Bug Fixes:

• Prevent a NullReferenceException when the OnConfirm callback is not provided.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request refactors the PopConfirmButton component by adding a null check before invoking the OnConfirm event handler. This prevents potential exceptions if OnConfirm is not assigned.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Added a null check for the OnConfirm event handler before invoking it.	Wrapped the invocation of the OnConfirm method in a null check condition (if (OnConfirm != null))	src/BootstrapBlazor/Components/Button/PopConfirmButton.razor.cs

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#5897	Add a null check for the OnConfirm event handler in the PopConfirmButton component to prevent potential null reference exceptions.	✅

Possibly linked issues

• refactor(PopConfirmButton): add OnConfirm null check #5897: The PR adds a null check for OnConfirm, addressing the issue.
• refactor(PopConfirmButton): add OnConfirm null check #5897: PR adds null check for OnConfirm callback, updating the callback logic as requested in the issue.

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[sourcery-ai]

Hey @ArgoZhang - I've reviewed your changes and they look great!

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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