994654: Added Persist Selection Note

Author: sanjaykumar-suresh

blazor/datagrid/selection.md

@@ -726,4 +726,6 @@ public class OrderDetails
 {% endhighlight %}
 {% endtabs %}
 
-{% previewsample "https://blazorplayground.syncfusion.com/embed/LXLejIZoMcsYDjdk?appbar=false&editor=false&result=true&errorlist=false&theme=bootstrap5" %}
+{% previewsample "https://blazorplayground.syncfusion.com/embed/LXLejIZoMcsYDjdk?appbar=false&editor=false&result=true&errorlist=false&theme=bootstrap5" %}
+
+> When using the Select All option, only the records visible in the current view are selected. The SelectedRecords property reflects the selection count for the current page. As you navigate to subsequent pages, new records are loaded on demand, and SelectedRecords will include selections from each visited page. This behavior is by design to support efficient data retrieval with paging. Therefore, selecting all records across the entire dataset and retrieving them simultaneously is not supported when Select All is enabled.