fix(module: datepicker): value not updated when changed programmatically

[Alexbits]

🤔 This is a ...

• New feature
• Bug fix
• Site / documentation update
• Demo update
• Component style update
• Bundle size optimization
• Performance optimization
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

#2538

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English
🇨🇳 Chinese

☑️ 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
• Changelog is provided or not needed

[github-actions]

[Alexbits]

This PR should fix the issue with DatePicker. The RangePicker has the same problem, but it's more complex. I'm still working on fixing it.

[codecov]

Codecov Report

Merging #2551 (1e1ed16) into feature (26ff941) will increase coverage by 2.30%.
The diff coverage is 63.63%.

@@             Coverage Diff             @@
##           feature    #2551      +/-   ##
===========================================
+ Coverage    27.34%   29.64%   +2.30%     
===========================================
  Files          503      541      +38     
  Lines        33956    26150    -7806     
  Branches         0      260     +260     
===========================================
- Hits          9284     7752    -1532     
+ Misses       24672    18358    -6314     
- Partials         0       40      +40     

Impacted Files	Coverage Δ
components/calendar/Calendar.razor.cs	0.00% <0.00%> (ø)
...s/date-picker/internal/DatePickerTemplate.razor.cs	32.86% <0.00%> (+3.69%)	⬆️
...onents/date-picker/internal/DatePickerPanelBase.cs	55.43% <5.88%> (+13.89%)	⬆️
components/date-picker/internal/DatePickerBase.cs	51.92% <92.00%> (+10.05%)	⬆️
components/date-picker/DatePicker.Razor.cs	63.97% <100.00%> (+0.50%)	⬆️
components/date-picker/RangePicker.razor.cs	25.77% <100.00%> (+25.77%)	⬆️
components/core/Helpers/MemberPath/PathNode.cs	46.15% <0.00%> (-8.85%)	⬇️
components/core/Reflection/TypeDefined.cs	77.77% <0.00%> (-7.94%)	⬇️
components/input/InputGroup.razor.cs	87.50% <0.00%> (-6.95%)	⬇️
...ponents/date-picker/types/DatePickerPlaceholder.cs	22.72% <0.00%> (-4.20%)	⬇️
... and 448 more

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[ElderJames]

Thanks @Alexbits , maybe this PR can be target to branch master.

[Alexbits]

Thanks @Alexbits , maybe this PR can be target to branch master.

I wanted to commit RangePicker fixes here. But it's up to you of course. This fix also requires the previous changes from the feature branch.

[ElderJames]

That's fine. Just let it stay at feature.

[Alexbits]

That's fine. Just let it stay at feature.

I believe this fixes RangePicker. It looks like I also found a bug when the left part (marked red on the screenshot) of the date selection panel always set the value to the picker with index 0, no matter that the 1 was active input 🤔.

[ElderJames]

I believe this fixes RangePicker. It looks like I also found a bug when the left part (marked red on the screenshot) of the date selection panel always set the value to the picker with index 0, no matter that the 1 was active input 🤔.

Yes, I found this. I take it you haven't fixed the bug yet.

[Alexbits]

I believe this fixes RangePicker. It looks like I also found a bug when the left part (marked red on the screenshot) of the date selection panel always set the value to the picker with index 0, no matter that the 1 was active input 🤔.

Yes, I found this. I take it you haven't fixed the bug yet.

Hey @ElderJames I fixed it in the last commit.