请帮忙!!!
我有这段简单的代码,我不知道为什么不做应该做的事情是插入类中包含的数据,我不知道我做错了什么,因为插入语句只产生表中的 NULL 值。
这是代码:
public void InsertData()
{
using (CTM dc = new CTM(conn))
{
//Table<ValidCCGpn> validCCGpn = dc.GetTable<ValidCCGpn>();
for (int i = 0; i < 10; i++)
{
dc.ValidCCGpn.InsertOnSubmit(
new ValidCCGpn
{
Period = 201209,
GPN = "gpn" + i.ToString(),
CC_GPN = "cc_gpn" + i.ToString()
});
}
dc.SubmitChanges();
}
}
这是我的 DataContext 和 and 表:
public partial class CTM : DataContext
{
public CTM(string conn) : base(conn) { }
public Table<ValidCCGpn> ValidCCGpn;
}
[Table(Name = "CAT.ValidCCGpn")]
public class ValidCCGpn
{
[Column(IsPrimaryKey = true, IsDbGenerated = true, AutoSync = AutoSync.OnInsert)]
public int Id { get; set; }
public int Period { get; set; }
public string GPN { get; set; }
public string CC_GPN { get; set; }
}
这是创建表的 sql 脚本:
CREATE TABLE [CAT].[ValidCCGpn](
[Id] [int] IDENTITY(1,1) NOT NULL,
[Period] [int] NULL,
[GPN] [varchar](50) NULL,
[CC_GPN] [varchar](50) NULL,
CONSTRAINT [PK_ValidCCGpn] 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]
这是我在表格中得到的结果:
Id Period GPN CC_GPN
1 NULL NULL NULL
2 NULL NULL NULL
3 NULL NULL NULL
4 NULL NULL NULL
5 NULL NULL NULL
6 NULL NULL NULL
7 NULL NULL NULL
8 NULL NULL NULL
9 NULL NULL NULL
10 NULL NULL NULL