feat(DateTimePicker)添加 OnDateChanged 回调属性

[AiYuZhen]

#feat(DateTimePicker)添加 OnDateChanged 回调属性

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

暴露 DatePickerBody 子组件的 OnDateChanged 回调属性。

在查询轨迹记录时，需要在弹出的日期选择组件中显示每天行驶的总里程，然后用户根据里程信息判断需要查看哪一天的记录。

为实现以上需求需要在调整年、月后更新每天的总里程信息。

fixes #{bug number} (in this specific format)

Regression?

• Yes
• No

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

[是否影响老版本]

Risk

• High
• Medium
• Low

[Justify the selection above]

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

New Features:

• Expose the OnDateChanged callback property in the DatePickerBody component to handle date changes.

[sourcery-ai]

Reviewer's Guide by Sourcery

The PR exposes a new OnDateChanged callback property in the DateTimePicker component by adding a new parameter and passing it to the DatePickerBody child component. This allows parent components to respond to date changes in the picker.

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

File-Level Changes

Change	Details	Files
Added a new OnDateChanged callback parameter to handle date change events	Added a new Parameter property OnDateChanged of type Func<DateTime, Task>? Passed the OnDateChanged callback to the DatePickerBody component in the razor template	src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor.cs src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor

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[bb-auto]

Thanks for your PR, @AiYuZhen. Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[sourcery-ai]

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

Overall Comments:

• Consider enhancing the XML documentation for OnDateChanged to specify when exactly the callback is triggered and what the DateTime parameter represents.

Here's what I looked at during the review

• 🟡 General issues: 1 issue found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

suggestion (bug_risk): Remove the null-forgiving operator (!) from OnDateChanged parameter

Since OnDateChanged is defined as nullable, using the null-forgiving operator here could lead to runtime errors if the callback is null. Consider passing the parameter without the ! operator and handling null cases in the child component.

Suggested change

	OnConfirm="OnConfirm" OnClear="OnClear" MinValue="MinValue" MaxValue="MaxValue" OnDateChanged="OnDateChanged!"
	OnConfirm="OnConfirm" OnClear="OnClear" MinValue="MinValue" MaxValue="MaxValue" OnDateChanged="OnDateChanged"

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