使用NBearMapping做测试，才发现SQL中的float不能被自动Map到实体类型为float字段中。
搜索了一下，才发现SQL中的float对应到C#的double，我晕了。
http://www.cnblogs.com/xkforever/archive/2007/04/27/729858.html
/// <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;
}
唉，基础不好，更重要的是脑子的内存坏了，一睡醒就丢失资料。
posted @ 2007-08-12 04:22
MK2 阅读(257)
评论(0) 编辑 收藏 所属分类:
1 .NET 2.0/1.1 & 3.X 、
8 DataBase