数据库SQL SServer与C#中数据类型的对应关系
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 |
varbinary |
System.Byte[] |
varchar |
String |
Variant |
Object |
unique identifier |
System.Guid |
可以写写成一个方法进行转换
/// <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;
}
posted on 2010-07-01 19:48 黄兆张's Blog 阅读(4278) 评论(0) 编辑 收藏 举报