C# 错误：应为类、委托、枚举、接口或结构

我在下面的代码中遇到以下错误：

应为类、委托、枚举、接口或结构

当将鼠标悬停在GH_ObjectResponse上时会发生这种情况，我做错了什么

public class SettingsComponentAttributes : GH_ComponentAttributes
{
    public SettingsComponentAttributes(IGH_Component SettingsComponent) :  
        base(SettingsComponent) {}
}

public override GH_ObjectResponse RespondToMouseDoubleClick(
    GH_Canvas sender, GH_CanvasMouseEvent e)
{
    ((SettingsComponent)Owner).ShowSettingsGui();
    return GH_ObjectResponse.Handled;
}

---

您的方法未在类内声明。。。请尝试以下方法：

public class SettingsComponentAttributes : GH_ComponentAttributes
{
    public SettingsComponentAttributes(IGH_Component SettingsComponent) : base(SettingsComponent) { }

    public override GH_ObjectResponse RespondToMouseDoubleClick(GH_Canvas sender, GH_CanvasMouseEvent e)
    {
        ((SettingsComponent)Owner).ShowSettingsGui();
        return GH_ObjectResponse.Handled;
    }
}

---

您的方法未在类内声明。。。请尝试以下方法：

public class SettingsComponentAttributes : GH_ComponentAttributes
{
    public SettingsComponentAttributes(IGH_Component SettingsComponent) : base(SettingsComponent) { }

    public override GH_ObjectResponse RespondToMouseDoubleClick(GH_Canvas sender, GH_CanvasMouseEvent e)
    {
        ((SettingsComponent)Owner).ShowSettingsGui();
        return GH_ObjectResponse.Handled;
    }
}

---

小心你的支架。应该是：

public class SettingsComponentAttributes : GH_ComponentAttributes
{
    public SettingsComponentAttributes(IGH_Component SettingsComponent) : base(SettingsComponent) {}

    public override GH_ObjectResponse RespondToMouseDoubleClick(GH_Canvas sender, GH_CanvasMouseEvent e)
    {
        ((SettingsComponent)Owner).ShowSettingsGui();
        return GH_ObjectResponse.Handled;
    }
}

---

小心你的支架。应该是：

public class SettingsComponentAttributes : GH_ComponentAttributes
{
    public SettingsComponentAttributes(IGH_Component SettingsComponent) : base(SettingsComponent) {}

    public override GH_ObjectResponse RespondToMouseDoubleClick(GH_Canvas sender, GH_CanvasMouseEvent e)
    {
        ((SettingsComponent)Owner).ShowSettingsGui();
        return GH_ObjectResponse.Handled;
    }
}