实体框架-包含多级属性

Question

public IEnumerable<ApplicationServer> GetAll()
{
    return this.Database.ApplicationServers
        .Include(x => x.ApplicationsWithOverrideGroup)                
        .Include(x => x.ApplicationWithGroupToForceInstallList)
        .Include(x => x.CustomVariableGroups)                
        .ToList();
}

将只填充Enabled属性（下图），而不填充Application或CustomVariableGroup属性（下图）。我该怎么做？

public class ApplicationWithOverrideVariableGroup : EntityBase
{
    public bool Enabled { get; set; }
    public Application Application { get; set; }
    public CustomVariableGroup CustomVariableGroup { get; set; }
}

Answer 1

对于EF 6

using System.Data.Entity;

query.Include(x => x.Collection.Select(y => y.Property))

确保使用System.Data.Entity；添加，以获得接受lambda的Include的版本。

对于EF核心

query.Include(x => x.Collection)
     .ThenInclude(x => x.Property);