Hi,

I'm trying to refactor my existing components to use the newly introduced CascadingTypeParameter attribute but I'm running into compiler errors.

BlzTableGrid.razor (this is the main grid component)

@attribute [CascadingTypeParameter(nameof(TItem))]
@typeparam TItem

<CascadingValue Value="this" IsFixed="true">
    @ColumnsTemplate
</CascadingValue>
...

BlzTableGrid.razor.cs

public partial class BlzTableGrid<TItem> where TItem : class
{
    [Parameter]
    public RenderFragment ColumnsTemplate { get; set; }
...

BlzGridBaseColumn.cs

public abstract partial class BlzGridBaseColumn<TItem> : ComponentBase where TItem : class
{
    [CascadingParameter]
    internal BlzTableGrid<TItem> Grid { get; set; }
...

BlzGridColumn.cs

public class BlzGridColumn<TItem> : BlzGridBaseColumn<TItem>, IGridFieldColumn<TItem> where TItem : class
{
    [Parameter]
    public string FieldName { get; set; }
...

TableGrid.razor (page consuming the grid component)

<BlzTableGrid
    TItem="WeatherForecastLookup"
    Items="WeatherForecasts"

    <ColumnsTemplate>
        <BlzGridEditColumn />
        <BlzGridDeleteColumn />
        <BlzGridViewColumn />
        <BlzGridColumn Title="Date" FieldName="@nameof(WeatherForecastLookup.Date)" Format="d" Width="10rem" />
...

I'm getting the following compiler error for what seems to be each column in TableGrid.razor page:

>C:\Projects\Blazor-Components\DemoApp\Microsoft.NET.Sdk.Razor.SourceGenerators\Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator\Pages_Grid_TableGrid_razor.g.cs(563,29,563,34): error CS0449: The 'class', 'struct', 'unmanaged', 'notnull', and 'default' constraints cannot be combined or duplicated, and must be specified first in the constraints list.

Thank you for your help.