c# - VB.NET 必须实现错误

Question

我只是将 C# 函数转换为 VB.NET 函数，但不知何故我收到了一些错误。下面是我的 C# 函数。

public abstract class BaseFilterControl: UserControl,IFilterControl
{
    public string PropertyName { get; set; }

    public FilterDescriptorBase AssociatedDescriptor { get; set; }

    public bool IsFirst { get; set; }

    public abstract FilterDescriptorBase BuildDescriptor();

    protected abstract void Initialize();
}

下面是我当前的 VB 函数

Public MustInherit Class BaseFilterControl
    Inherits UserControl
    Implements IFilterControl

    Public Property PropertyName As String

    Public Property AssociatedDescriptor As FilterDescriptorBase

    Public Property IsFirst As Boolean

    Public MustOverride Function BuildDescriptor() As FilterDescriptorBase

    Protected MustOverride Sub Initialize()
End Class

我收到此错误:

BaseFilterControl must implement Function BuildDescriptor() As FilterDescriptorBase.

任何想法。请帮忙。谢谢

Answer 1

抽象方法很好地实现了接口(interface)方法。在VB中，只需指定该函数实现接口(interface)函数即可:

Public MustOverride Function BuildDescriptor() As FilterDescriptorBase Implements IFilterControl.BuildDescriptor

您可能需要为其他方法添加更多“Implements”子句 - 我不熟悉 IFilterControl 接口(interface)。