在WP7上使用c#格式化LINQ SQL CE数据

我是c#/LINQ/WP7开发的新手，我正在努力格式化从我的LINQ查询返回的数据。

我有以下的LINQ c#结构:

var boughtItemsInDB = from DBControl.MoneySpent bought in BoughtItemDB.BoughtItems
select bought;
BoughtItems = new ObservableCollection<DBControl.MoneySpent>(boughtItemsInDB);

MoneySpent的定义如下;

    [Table(Name = "MoneySpent")]
    public class MoneySpent : INotifyPropertyChanged, INotifyPropertyChanging
    {
        // Define ID: private field, public property and database column.
        private int _itemId;
        [Column(IsPrimaryKey = true, IsDbGenerated = true, DbType = "INT NOT NULL Identity", CanBeNull = false, AutoSync = AutoSync.OnInsert)]
        public int ItemId
        {
            get
            {
                return _itemId;
            }
            set
            {
                if (_itemId != value)
                {
                    NotifyPropertyChanging("ItemId");
                    _itemId = value;
                    NotifyPropertyChanged("ItemId");
                }
            }
        }
        // Define item budget: private field, public property and database column.
        private int _itemBudget;
        [Column]
        public int ItemBudget
        {
            get
            {
                return _itemBudget;
            }
            set
            {
                if (_itemBudget != value)
                {
                    NotifyPropertyChanging("ItemBudget");
                    _itemBudget = value;
                    NotifyPropertyChanged("ItemBudget");
                }
            }
        }

        // Define item category: private field, public property and database column.
        private string _itemCategory;
        [Column]
        public string ItemCategory
        {
            get
            {
                return _itemCategory;
            }
            set
            {
                if (_itemCategory != value)
                {
                    NotifyPropertyChanging("ItemCategory");
                    _itemCategory = value;
                    NotifyPropertyChanged("ItemCategory");
                }
            }
        }

        // Define item description: private field, public property and database column.
        private string _itemDescription;
        [Column]
        public string ItemDescription
        {
            get
            {
                return _itemDescription;
            }
            set
            {
                if (_itemDescription != value)
                {
                    NotifyPropertyChanging("ItemDescription");
                    _itemDescription = value;
                    NotifyPropertyChanged("ItemDescription");
                }
            }
        }

        // Define item amount: private field, public property and database column.
        private decimal _itemAmount;
        [Column]
        public decimal ItemAmount
        {
            get
            {
                return _itemAmount;
            }
            set
            {
                if (_itemAmount != value)
                {
                    NotifyPropertyChanging("ItemAmount");
                    _itemAmount = value;
                    NotifyPropertyChanged("ItemAmount");
                }
            }
        }

        // Define item date: private field, public property and database column.
        private DateTime _itemDateTime;
        [Column]
        public DateTime ItemDateTime
        {
            get
            {
                return _itemDateTime;
            }
            set
            {
                if (_itemDateTime != value)
                {
                    NotifyPropertyChanging("ItemDateTime");
                    _itemDateTime = value;
                    NotifyPropertyChanged("ItemDateTime");
                }
            }
        }

我需要格式化从数据库返回的数据，以下内容存储在我的DB中:

ItemDateTime - DateTime, ItemDescription - String, ItemAmount - Decimal

我需要能够根据用户的当前区域设置格式化日期，并将十进制格式设置为2 dp。

我也不确定我是否需要使用IQueryable当我得到数据结果。

任何帮助都将非常感激。

谢谢,div标记

var boughtItemsInDB = from bought in BoughtItemDB.BoughtItems
select new { ItemDateTime = bought.ItemDateTime.ToString(), ItemDescription = bought.ItemDescription, ItemAmount = bought.ItemAmount.ToString("0,0.00") };