blazor - Blazor 中的级联 @typeparam

Question

你能以某种方式级联@typeparam吗？

例如在这种情况下，将 TItem 传递给 Child 而不指定它

预期行为:

<Parent TItem="User">
  <Child>
</Parent>

当前:

<Parent TItem="User">
  <Child TItem="User">
</Parent>

Answer 1

还没有，但应该是coming with .NET 6 .

来自文档:

In .NET 6 Preview 2, Blazor can now infer generic type parameters from ancestor components. Ancestor components must opt in to this behavior. An ancestor component can cascade a type parameter by name to descendants using the [CascadingTypeParameter] attribute. This attribute allows generic type inference to use the specified type parameter automatically with descendants that have a type parameter with the same name.