数据库中字段类型对应C#中的数据类型:
数据库 C#程序
int int32
text string
bigint int64
binary System.Byte[]
bit Boolean
char string
datetime System.DateTime
decimal System.Decimal
float System.Double
image System.Byte[]
money System.Decimal
nchar String
ntext String
numeric System.Decimal
nvarchar String
real System.Single
smalldatetime System.DateTime
smallint Int16
smallmoney System.Decimal
timestamp System.DateTime
tinyint System.Byte
uniqueidentifier System.Guid
varbinary System.Byte[]
varchar String
Variant Object