doc(CustomerFilter): update ShowFilterHeader sample code

[ArgoZhang]

Link issues

fixes #6617

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

Update the CustomerFilter sample to use localization, streamline the component markup, and integrate it into the TablesFilter demo for the Count column

Enhancements:

• Inject IStringLocalizer into CustomerFilter to localize filter item texts
• Initialize _items in OnInitialized using localized strings instead of hardcoded values
• Simplify the CustomerFilter Razor markup to a single with default item and popover enabled Rename the bound Value field to _value and update Reset and GetFilterConditions methods accordingly Modify the TablesFilter demo to include CustomerFilter within a FilterTemplate for the Count column

[sourcery-ai]

Reviewer's Guide

This PR refactors the CustomerFilter component to support localization, standardizes its internal state naming and binding, streamlines the Razor markup, and updates the TablesFilter sample to demonstrate the new filter integration.

Sequence diagram for filter initialization with localization

sequenceDiagram
    participant CustomerFilter
    participant TableFilterLocalizer
    participant SelectedItem
    CustomerFilter->>TableFilterLocalizer: Request localized filter texts
    TableFilterLocalizer-->>CustomerFilter: Return localized strings
    CustomerFilter->>SelectedItem: Create filter items with localized text
    CustomerFilter->>CustomerFilter: Set _items with localized SelectedItems

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Class diagram for updated CustomerFilter component

classDiagram
    class CustomerFilter {
        <<partial>>
        - IStringLocalizer<TablesFilter> TableFilterLocalizer
        - int? _value
        - List<SelectedItem> _items
        + void Reset()
        + FilterKeyValueAction GetFilterConditions()
        + void OnInitialized()
    }
    CustomerFilter --> TablesFilter : uses IStringLocalizer
    CustomerFilter --> SelectedItem : contains

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File-Level Changes

Change	Details	Files
Add localization support to CustomerFilter component	Inject IStringLocalizer into the component Replace hard-coded item texts with localized resource lookups Populate the _items list in OnInitialized using localized strings	src/BootstrapBlazor.Server/Components/Components/CustomerFilter.razor.cs
Refactor internal value field and filter logic	Rename Value property to private field _value Update Reset() and GetFilterConditions() to reference _value Adjust binding logic in code-behind to use _value	src/BootstrapBlazor.Server/Components/Components/CustomerFilter.razor.cs
Streamline CustomerFilter Razor markup	Remove conditional header-row check and embed Select directly Bind the Select component to _value instead of Value Enable IsUseDefaultItemWhenValueIsNull and IsPopover on Select	src/BootstrapBlazor.Server/Components/Components/CustomerFilter.razor
Update TablesFilter sample to use the new filter	Replace DefaultSort settings on the Count column Use FilterTemplate with FilterProvider to host CustomerFilter Disable the ‘Show More’ button in the sample’s FilterProvider	src/BootstrapBlazor.Server/Components/Samples/Table/TablesFilter.razor

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#6617	Enable use of CustomFilter when ShowFilterHeader=true in Table component.	✅
#6617	Update documentation and sample code to demonstrate how to use CustomFilter with ShowFilterHeader enabled.	✅

Possibly linked issues

• chore(TableFilter): use OnFilterAsync instead of OnFilterValueChanged in CustomFilter #6617: The PR updates CustomerFilter sample code to demonstrate its usage within a FilterTemplate, providing an example solution to the issue.
• chore(TableFilter): use OnFilterAsync instead of OnFilterValueChanged in CustomFilter #6617: The PR updates the sample code for the CustomerFilter component, which directly addresses the issue of updating sample code for the component.

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[sourcery-ai]

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

Prompt for AI Agents

Please address the comments from this code review:
## Individual Comments

### Comment 1
<location> `src/BootstrapBlazor.Server/Components/Components/CustomerFilter.razor:3` </location>
<code_context>
-{
-    <Select Items="@_items" @bind-Value="@Value"></Select>
-}
+<Select Items="@_items" @bind-Value="@_value" IsUseDefaultItemWhenValueIsNull="true" IsPopover="true"></Select>
</code_context>

<issue_to_address>
Check if IsUseDefaultItemWhenValueIsNull aligns with desired UX.

Please verify that showing the default item when _value is null is consistent with the intended filter behavior, particularly after a filter reset.
</issue_to_address>

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (ffaf795) to head (7578fb4).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6627   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          739       739           
  Lines        31675     31675           
  Branches      4459      4459           
=========================================
  Hits         31675     31675           

Flag	Coverage Δ
BB	100.00% <ø> (?)

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