✅ Can't have interface with abstract static method as parameter in blazor component

I have interface and class like this:

interface IFoo
{
  static abstract IFoo Create();
  void SomeFunction();
}

class Foo : IFoo
{
  public static IFoo Create() => new Foo();
  public void SomeFunction() { }
}

interface IFoo
{
  static abstract IFoo Create();
  void SomeFunction();
}

class Foo : IFoo
{
  public static IFoo Create() => new Foo();
  public void SomeFunction() { }
}

now i want to have

IFoo

IFoo

as parameter in blazor component like this:

[Parameter]
public IFoo MyFoo { get; set; }

[Parameter]
public IFoo MyFoo { get; set; }

but when i try to pass instance of Foo into the component i get this error:

CS8920    The interface 'IFoo' cannot be used as type argument. Static member 'IFoo.Create()' does not have a most specific implementation in the interface.

CS8920    The interface 'IFoo' cannot be used as type argument. Static member 'IFoo.Create()' does not have a most specific implementation in the interface.

Any way to fix this?

C#•3y ago•

6 replies

Binto86

✅ Can't have interface with abstract static method as parameter in blazor component

I have interface and class like this:

interface IFoo
{
  static abstract IFoo Create();
  void SomeFunction();
}

class Foo : IFoo
{
  public static IFoo Create() => new Foo();
  public void SomeFunction() { }
}

interface IFoo
{
  static abstract IFoo Create();
  void SomeFunction();
}

class Foo : IFoo
{
  public static IFoo Create() => new Foo();
  public void SomeFunction() { }
}

now i want to have

IFoo

IFoo

as parameter in blazor component like this:

[Parameter]
public IFoo MyFoo { get; set; }

[Parameter]
public IFoo MyFoo { get; set; }

but when i try to pass instance of Foo into the component i get this error:

CS8920    The interface 'IFoo' cannot be used as type argument. Static member 'IFoo.Create()' does not have a most specific implementation in the interface.

CS8920    The interface 'IFoo' cannot be used as type argument. Static member 'IFoo.Create()' does not have a most specific implementation in the interface.

Any way to fix this?

✅ Can't have interface with abstract static method as parameter in blazor component

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✅ Can't have interface with abstract static method as parameter in blazor component

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