Selecting a subset of data in ServiceStack.OrmLite

问题

Is there any way to return a subset of a table in ServiceStack.OrmLite?
Something like:

public class MyStuff
{
    public Guid Id { get; set; }
    public string Name { get; set; }
    public byte[] Data { get; set; } // Some large blob, which is not desired in the list
}

var somestuff = db.Select<MyStuff>(x => new { Id = x.Id, Name = x.Name });

I am really hoping to avoid manual stuff, like "select blabla from somewhere"...

回答1:

I had that exact same problem. Here is what I did:

public class MyStuff
{
    public Guid Id { get; set; }
    public string Name { get; set; }
    public byte[] Data { get; set; } 
}

var somestuff = Db.Select<MyStuff>(p => p.Select(x => new { x.Id, x.Name }));

The only changes made, to what you did above, were done to the Db.Select.

回答2:

Create a class for your basic information and set an alias.

[Alias("MyStuff")]
public class MyBasicStuff
{
    public Guid Id { get;set; }
    public string Name { get; set; }
}

var basicStuff = db.Select<MyBasicStuff>();

来源：https://stackoverflow.com/questions/16354147/selecting-a-subset-of-data-in-servicestack-ormlite