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docs(va): two-parameter report shot with a date literal

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Replaces the three-parameter screenshot with a two-parameter one - a value
list and a date - and adds a zoomed crop of the DC header and FILTER line.

The date parameter arrives as a display date and is rendered as a SAS date
literal ('12FEB1960'd), the same as a date filter built inside Data
Controller. That is worth showing because VA's own prompt containers in the
report header show only the parameter label: the FILTER line is where the
selected values are legible.
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dc committed 2026-10-29 13:14:15 +00:00
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commit f803656936
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docs/visual-analytics.md
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@@ -50,9 +50,9 @@ VA pushes a JSON payload to the iframe via `window.postMessage` whenever the sel
If VA sends an empty / unmatched message the editor falls back to the unfiltered view but stays in VA mode.
The applied filter is shown above the grid, so what the report did to the editor is visible without touching it. In the report below, three report parameters - `SOME_CHAR`, `SOME_DROPDOWN` and `SOME_NUM` - reach one Data Controller object, and the editor shows both the combined filter and the single row it matches:
The applied filter is shown above the grid, so what the report did to the editor is visible without touching it. In the report below, two report parameters - `SOME_DROPDOWN` and `SOME_DATE` - reach one Data Controller object, and the editor shows both the combined filter and the single row it matches:
![Three report parameters driving the embedded editor](img/va-report-filters.png)
![A value and a date parameter filtering the embedded editor](img/va-report-filters.png)
More logic available in [`va-messaging.service.ts`](https://git.datacontroller.io/dc/dc/src/branch/main/client/src/app/services/va-messaging.service.ts).
@@ -184,6 +184,10 @@ The mapping lives entirely in the URL of the report object, so the job is to get
FILTER : ( ( REGION = 'Europe' ) )
```
A date parameter arrives as a display date and is rendered as a SAS date literal, the same as a date filter built inside Data Controller - `'12FEB1960'd` below, over the row it matches:
![A date parameter rendered as a SAS date literal](img/va-report-filter-line.png)
Something wrong shows the banner instead, with the cause and the fix - see [When a mapping cannot be used](#when-a-mapping-cannot-be-used) above.
!!! note