Fix include syntax and paths in Picker, DatePicker, and TimePicker docs

[Copilot]

Include statements in Picker, DatePicker, and TimePicker documentation were rendering as literal text instead of including content due to incorrect syntax and paths.

Changes

• Fixed include syntax: Changed from ::: include to [!INCLUDE [text](path)]
• Fixed include paths: Changed from ../../includes/ to ../includes/

Files Modified

• docs/user-interface/controls/datepicker.md (2 includes)
• docs/user-interface/controls/timepicker.md (2 includes)
• docs/user-interface/controls/picker.md (1 include)

Example

Before:

::: include ../../includes/pickers-open-close-dotnet10.md

After:

[!INCLUDE [Pickers open and close](../includes/pickers-open-close-dotnet10.md)]

This affects .NET 10 sections documenting programmatic picker control and MVVM Toolkit usage.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Picker, DatePicker, and TimePicker have incorrect includes</issue_title>
<issue_description><!--
Before you open an issue

If the issue is:

• A simple typo or similar correction, consider submitting a PR to fix it instead of logging an issue. See the contributor guide for instructions.
• A general support question, consider asking on a support forum site.
• A site design concern, create an issue at MicrosoftDocs/feedback.
• A problem completing a tutorial, compare your code with the completed sample.
• A duplicate of an open or closed issue, leave a comment on that issue.
  -->

Issue description

The pages for DatePicker, TimePicker, and Picker have been updated to reference an include for programmatically opening and closing them in .NET 10. However, the format appears to be incorrect and the referenced file does not exist. See:

• docs-maui/docs/user-interface/controls/timepicker.md

  Line 178 in d6a23fd

  ::: include ../../includes/pickers-open-close-dotnet10.md

• docs-maui/docs/user-interface/controls/picker.md

  Line 265 in d6a23fd

  ::: include ../../includes/pickers-open-close-dotnet10.md

• docs-maui/docs/user-interface/controls/datepicker.md

  Line 210 in d6a23fd

  ::: include ../../includes/pickers-open-close-dotnet10.md

Result:

Note: TimePicker and DatePicker have a similar issue with a reference to the MVVM Community Toolkit a few lines above as well.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Picker, DatePicker, and TimePicker have incorrect includes #3138

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Internal previews

📄 File	🔗 Preview link
docs/user-interface/controls/datepicker.md	docs/user-interface/controls/datepicker
docs/user-interface/controls/picker.md	docs/user-interface/controls/picker
docs/user-interface/controls/timepicker.md	docs/user-interface/controls/timepicker

[learn-build-service-prod]

Learn Build status updates of commit 8e232d2:

✅ Validation status: passed

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

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[learn-build-service-prod]

Learn Build status updates of commit f5800b3:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/user-interface/controls/datepicker.md	✅Succeeded	View (>=net-maui-8.0)
docs/user-interface/controls/picker.md	✅Succeeded	View (>=net-maui-8.0)
docs/user-interface/controls/timepicker.md	✅Succeeded	View (>=net-maui-8.0)

For more details, please refer to the build report.