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Explain field used by example (#34151)

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Luke Latham 2024-11-17 10:35:12 -05:00 committed by GitHub
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aspnetcore/blazor/components/virtualization.md
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@ -97,7 +97,7 @@ The items provider receives an <xref:Microsoft.AspNetCore.Components.Web.Virtual
A <xref:Microsoft.AspNetCore.Components.Web.Virtualization.Virtualize%601> component can only accept **one item source** from its parameters, so don't attempt to simultaneously use an items provider and assign a collection to `Items`. If both are assigned, an <xref:System.InvalidOperationException> is thrown when the component's parameters are set at runtime.
The following example loads employees from an `EmployeeService` (not shown):
The following example loads employees from an `EmployeeService` (not shown). The `totalEmployees` field would typically be assigned by calling a method on the same service (for example, `EmployeesService.GetEmployeesCountAsync`) elsewhere, such as during component initialization.
```csharp
private async ValueTask<ItemsProviderResult<Employee>> LoadEmployees(