|
序号
|
类别
|
SQLServer
|
C Sharp
|
备注
|
|
1
|
整数
|
bit
|
Boolean
|
True转换为1False转换为0
|
|
2
|
tinyint
|
Byte
|
C Sharp 数据类型都位于System命名空间
|
|
|
3
|
smallint
|
Int16
|
||
|
4
|
int
|
Int32
|
||
|
5
|
bigint
|
Int64
|
||
|
6
|
smallmoney
|
Decimal
|
||
|
7
|
money
|
Decimal
|
||
|
8
|
numeric
|
Decimal
|
||
|
9
|
decimal
|
Decimal
|
||
|
10
|
浮点数
|
float
|
Double
|
|
|
11
|
real
|
Single
|
||
|
12
|
日期和时间
|
smalldatetime
|
DateTime
|
|
|
13
|
datetime
|
DateTime
|
||
|
14
|
timestamp
|
DateTime
|
||
|
15
|
字符串
|
char
|
String
|
|
|
16
|
text
|
String
|
||
|
17
|
varchar
|
String
|
||
|
18
|
nchar
|
String
|
||
|
19
|
ntext
|
String
|
||
|
20
|
nvarchar
|
String
|
||
|
21
|
二进制数据
|
binary
|
Byte[]
|
|
|
22
|
varbinary
|
Byte[]
|
||
|
23
|
image
|
Byte[]
|
||
|
24
|
其他
|
uniqueidentifier
|
Guid
|
|
|
25
|
Variant
|
Object
|
SqlDbType => DbType
SqlDbType.BigInt DbType.Int64 SqlDbType.Binary DbType.Binary SqlDbType.Bit DbType.Boolean SqlDbType.Char DbType.AnsiStringFixedLength SqlDbType.DateTime DbType.DateTime SqlDbType.Decimal DbType.Decimal SqlDbType.Float DbType.Double SqlDbType.Image DbType.Binary SqlDbType.Int DbType.Int32 SqlDbType.Money DbType.Currency SqlDbType.NChar DbType.StringFixedLength SqlDbType.NText DbType.String SqlDbType.NVarChar DbType.String SqlDbType.Real DbType.Single SqlDbType.UniqueIdentifier DbType.Guid SqlDbType.SmallDateTime DbType.DateTime SqlDbType.SmallInt DbType.Int16 SqlDbType.SmallMoney DbType.Currency SqlDbType.Text DbType.AnsiString SqlDbType.Timestamp DbType.Binary SqlDbType.TinyInt DbType.Byte SqlDbType.VarBinary DbType.Binary SqlDbType.VarChar DbType.AnsiString SqlDbType.Variant DbType.Object SqlDbType.Xml DbType.Xml SqlDbType.Udt DbType.Object SqlDbType.Structured DbType.Object SqlDbType.Date DbType.Date SqlDbType.Time DbType.Time SqlDbType.DateTime2 DbType.DateTime2 SqlDbType.DateTimeOffset DbType.DateTimeOffset
/// <summary>
/// 数据库中与c#中的数据类型对照
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
private string changetocsharptype(string type)
{
string reval=string.empty;
switch(type.tolower())
{
case "int":
reval= "int32";
break;
case "text":
reval= "string";
break;
case "bigint":
reval= "int64";
break;
case "binary":
reval= "system.byte[]";
break;
case "bit":
reval= "boolean";
break;
case "char":
reval= "string";
break;
case "datetime":
reval= "system.datetime";
break;
case "decimal":
reval= "system.decimal";
break;
case "float":
reval= "system.double";
break;
case "image":
reval= "system.byte[]";
break;
case "money":
reval= "system.decimal";
break;
case "nchar":
reval= "string";
break;
case "ntext":
reval= "string";
break;
case "numeric":
reval= "system.decimal";
break;
case "nvarchar":
reval= "string";
break;
case "real":
reval= "system.single";
break;
case "smalldatetime":
reval= "system.datetime";
break;
case "smallint":
reval= "int16";
break;
case "smallmoney":
reval= "system.decimal";
break;
case "timestamp":
reval= "system.datetime";
break;
case "tinyint":
reval= "system.byte";
break;
case "uniqueidentifier":
reval= "system.guid";
break;
case "varbinary":
reval= "system.byte[]";
break;
case "varchar":
reval= "string";
break;
case "variant":
reval="object";
break;
default:
reval= "string";
break;
}
return reval;
}