将列表从一种类型转换为另一种类型(Cast list from one type to another)

 我在将列表传递给接受不同类型参数的方法时遇到问题。 
 
 我的命名空间中有以下方法：Common.DB2（One classlibrary） 
 
public List<MyModel> GetDB2Data()
{
 //Get data from db2
}
 
 MyModel属于Common.Db2名称空间 
 
 我的命名空间Common.Sql（另一个类库）中有另一种方法 
 
public void PostToSql(List<MyModel> listData)
{
 //Post data to sql
}
 
 MyModel属于Common.Sql名称空间的位置 
 
 所以基本上我从db2获取一些数据并将其发布到sql。 
 
 在另一个类库中，我获取此数据并将数据发布为： 
 
//Get Data
var data =  db2Repo.GetDB2Data();

//Post Data 
sqlRepo.PostToSql(data);
 
 在上面的行中它没有说明 
 
Argument 1: cannot convert from 
  'System.Collections.Generic.List<Common.DB2.MyModel>' to 
  'System.Collections.Generic.List<Common.Sql.MyModel>'
 
 我曾尝试过像下面这样的演员： 
 
List<Common.Sql.MyModel> sourceList = new List<Common.Sql.MyModel>();
sourceList =  data.Cast<Common.Sql.MyModel>().ToList();
 
 但上面再次抛出异常 
 
Unable to cast object of type 'Common.DB2.MyModel' to type 
'Common.Sql.MyModel'.
 
 有任何更好的方法来处理/设计这个。 

I am having issues in passing list to a method that accepts parameter of different type.
 
I have the following method in my namespace: Common.DB2 (One classlibrary)
 
public List<MyModel> GetDB2Data()
{
 //Get data from db2
}
 
Where MyModel belongs to Common.Db2 namespace
 
I have another method in my namespace Common.Sql (Another Classlibrary)
 
public void PostToSql(List<MyModel> listData)
{
 //Post data to sql
}
 
Where MyModel belongs to Common.Sql namespace
 
So basically I get some data from my db2 and post it to sql.
 
In another class library I get this data and post data as:
 
//Get Data
var data =  db2Repo.GetDB2Data();

//Post Data 
sqlRepo.PostToSql(data);
 
Here in the above line it fails stating 
 
Argument 1: cannot convert from 
  'System.Collections.Generic.List<Common.DB2.MyModel>' to 
  'System.Collections.Generic.List<Common.Sql.MyModel>'
 
I had tried casting like below:
 
List<Common.Sql.MyModel> sourceList = new List<Common.Sql.MyModel>();
sourceList =  data.Cast<Common.Sql.MyModel>().ToList();
 
But above again throws exception
 
Unable to cast object of type 'Common.DB2.MyModel' to type 
'Common.Sql.MyModel'.
 
Any better way to handle/design this.

原文：https://stackoverflow.com/questions/46490960