传递类型为通用方法（嵌套泛型） [英] Pass type to generic method (nested generic)

问题描述

当我没有 TRootEntity 时，我如何调用以下方法，但只有其 TYPE ：

public void Class< TRootEntity>（Action< IClassMapper< TRootEntity>> customizeAction）其中TRootEntity：class;

最终目标是运行以下代码

  var mapper = new ModelMapper（） ; 
 mapper.Class< MyClass>（ca => 
 {
 ca.Id（x => x.Id，map => 
 {
 map .Column（MyClassId）; 
 map.Generator（Generators.HighLow，gmap => gmap.Params（new {max_low = 100}））; 
}）; 
 ca.属性（x => x.Something，map => map.Length（150））; 
}）; 
  

它用于创建动态NHibernate HBM 。更多信息此处

相关问题请参阅这里和这里。

解决方案

您不能通过传递运行时类型代码通用方法运行。 / p>

泛型需要在编译时具有类型。

您可能需要使用反射（请参阅mr的答案Ferreira指出如何做到这一点。）

How can I invoke following method while I have not TRootEntity, but have just its TYPE:

public void Class<TRootEntity>(Action<IClassMapper<TRootEntity>> customizeAction) where TRootEntity : class;

final goal is to run following code

var mapper = new ModelMapper();
mapper.Class<MyClass>(ca =>
{
    ca.Id(x => x.Id, map =>
    {
        map.Column("MyClassId");
        map.Generator(Generators.HighLow, gmap => gmap.Params(new { max_low = 100 }));
    });
    ca.Property(x => x.Something, map => map.Length(150));
});

It is used to create dynamic NHibernate HBM. More info available here

As related question see here and here.

解决方案

You cannot code Generic methods to run by passing a runtime Type.

Generics need to have the type at compile time.

You may need to use reflection (see answer of mr. Ferreira that point on how to do that).

这篇关于传递类型为通用方法（嵌套泛型）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！