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我试图使用LINQ插入一行到表不工作,并表的ID列具有识别规格:标识规范Linq中
CREATE TABLE [dbo].[Event](
[ID] [int] IDENTITY(36,1) NOT NULL,
[Description] [nvarchar](100) NOT NULL,
[OccurredDateTime] [datetime] NULL,
CONSTRAINT [PK_Event] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
我有身份的规范占在我的Visual Studio项目的DBML文件中:
[Table(Name="dbo.Event")]
public partial class Event : INotifyPropertyChanging, INotifyPropertyChanged
{
/* ... */
[Column(Storage="_ID", AutoSync=AutoSync.OnInsert, DbType="Int NOT NULL IDENTITY", IsPrimaryKey=true, IsDbGenerated=true)]
public int ID
{
/* ... */
}
/* ... */
}
怎么回事?当我尝试插入这样的:
Data.Event myEvent = new Data.Event();
myEvent.Description = summaryText;
db.Events.InsertOnSubmit(myEvent);
db.SubmitChanges();
以下异常被抛出:
SQLEXCEPTION:无法插入值 NULL插入列 'ID',表 'redacted.dbo.Event' ;列不会 允许空值。 INSERT失败。 声明已被终止
我想我在连接字符串中指定了错误的数据库。仍然试图让我的测试设置来验证... – 2010-11-09 19:45:03