MVC models converting error - asp.net-mvc

Question

How to set to a different model?
List<ORDER_DETAILSMetadata> result = db.ORDER_DETAILS.Where(p => p.Order_Number == id).ToList();
Error 6 Cannot implicitly convert type 'System.Collections.Generic.List<Mvc5.Models.ORDER_DETAILS>' to 'System.Collections.Generic.List<Mvc5.Models.ORDER_DETAILSMetadata>'
ORDER_DETAILSMetadata
MetadataType(typeof(ORDER_DETAILSMetadata))]
public partial class ORDER_DETAILS
{
// Note this class has nothing in it. It's just here to add the class-level attribute.
}
public class ORDER_DETAILSMetadata
{
public int Order_Details_ID { get; set; }
public Nullable<int> Order_Number { get; set; }
public Nullable<short> Sequence_Number { get; set; }
public string Item_Num { get; set; }
public Nullable<short> Order_Quantity { get; set; }
public Nullable<short> Ship_Quantity { get; set; }
}
ORDER_DETAILS.cs
public partial class ORDER_DETAILS
{
public int Order_Details_ID { get; set; }
public Nullable<int> Order_Number { get; set; }
public Nullable<short> Sequence_Number { get; set; }
public string Item_Num { get; set; }
public Nullable<short> Order_Quantity { get; set; }
public Nullable<short> Ship_Quantity { get; set; }
}

Answer 1

As far as i have understood, you can do something like this:
List<ORDER_DETAILSMetadata> result = db.ORDER_DETAILS.
Where(p => p.Order_Number == id).
Select(x => new ORDER_DETAILSMetadata
{
Order_Details_ID = x.Order_Details_ID,
Order_Number = x.Order_Number,
Sequence_Number = x.Sequence_Number,
Item_Num = x.Item_Num,
Order_Quantity = x.Order_Quantity,
Ship_Quantity = x.Ship_Quantity
}).ToList();
If you just want to convert one type of model to other type, you can do something like:
List<target> targetList = new List<target>(originalList.Cast<target>());
You can check the details about Cast() and OfType() here. Go for the first approach when you have different count and types of fields.