feat(DateTimePicker): add OnBlurAsync parameter

[ArgoZhang]

add OnBlurAsync parameter

Summary of the changes (Less than 80 chars)

简单描述你更改了什么, 不超过80个字符；如果有关联 Issue 请在下方填写相关编号

Description

fixes #4528

Regression?

• Yes
• No

[If yes, specify the version the behavior has regressed from]

[是否影响老版本]

Risk

• High
• Medium
• Low

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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

Add an OnBlurAsync parameter to the DateTimePicker component to support asynchronous operations on blur events and include a corresponding unit test to ensure its functionality.

New Features:

• Introduce an OnBlurAsync parameter to the DateTimePicker component, allowing asynchronous operations to be triggered when the component loses focus.

Tests:

• Add a unit test to verify the functionality of the OnBlurAsync parameter in the DateTimePicker component.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR adds a new OnBlurAsync parameter to the DateTimePicker component, allowing users to handle blur events asynchronously. The implementation includes adding the parameter property, implementing the blur event handler, and adding corresponding unit tests.

Sequence diagram for OnBlurAsync event handling

sequenceDiagram
    participant User as User
    participant DateTimePicker as DateTimePicker Component
    participant Handler as OnBlurAsync Handler

    User->>DateTimePicker: Blur input field
    DateTimePicker->>DateTimePicker: OnBlur()
    alt OnBlurAsync is set
        DateTimePicker->>Handler: OnBlurAsync(Value)
        Handler-->>DateTimePicker: Task Completed
    end

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Class diagram for DateTimePicker changes

classDiagram
    class DateTimePicker {
        +bool DisplayDisabledDayAsEmpty
        +Func~TValue, Task~ OnBlurAsync
        -IStringLocalizer~DateTimePicker~ Localizer
        -string? ReadonlyString
        +Task OnBlur()
    }
    note for DateTimePicker "Added OnBlurAsync parameter and OnBlur method"

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File-Level Changes

Change	Details	Files
Added new OnBlurAsync parameter and handler	Added OnBlurAsync parameter property of type Func<TValue, Task> Implemented protected virtual OnBlur method to handle blur events Added onblur event binding to the input element	src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor.cs src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor
Added unit test coverage for OnBlurAsync functionality	Created test case to verify OnBlurAsync callback is triggered on input blur Verified blur state changes correctly when callback is executed	test/UnitTest/Components/DateTimePickerTest.cs

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#4528	Add OnBlurAsync parameter to DateTimePicker component	✅

Possibly linked issues

• feat(DateTimePicker): add OnBlurAsync parameter #4528: The PR implements the OnBlurAsync parameter 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: 1 issue found
• 🟢 Security: all looks good
• 🟡 Testing: 1 issue found
• 🟢 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 (7bc5225) to head (e3b8485).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #4529   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          631       631           
  Lines        27065     27072    +7     
  Branches      3927      3928    +1     
=========================================
+ Hits         27065     27072    +7     

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