使用Linq从数据库填充对象

Question

我使用Entity Framework连接到数据库。现在，我想使用List<Object>

创建一个Linq收到的数据

所以，我有：

var listOfSettings = new List<AppSetting>();

var query = from appSetting in AppSettings
            where appSetting.AppConfigID == appConfigId
            select new AppSetting()
            {
                AppSettingID = Int16.Parse(appSetting.AppSettingID),
                ...

            };

如何将AppSetting Object添加到设置的List？

Answer 1

List<AppSetting> listOfSettings = (from appSetting in AppSettings
                                  where appSetting.AppConfigID == appConfigId
                                  select new AppSetting()
                                  {
                                      AppSettingID = Int16.Parse(appSetting.Name),
                                      ...

                                  }).ToList();

Answer 2

最后，我必须这样做：

var query = (AppSettings.Select(appSetting => new
            {
                AppSettingID = appSetting.AppSettingID,
                ...
            }).Where(appSetting => appSetting.AppConfigID == appConfigId)).ToList();

            listOfAppSettings.AddRange(query.Select(setting => new AppSetting()
            {
                AppSettingID = setting.AppSettingID, 
                ...
            }));