/// <summary>
///
/// </summary>
/// <returns></returns>
private System.Data.DataView GetColumnsType()
{
//Fan.iData.DB idb; //数据库连接类，改成自己的数据库连接
//if (_ConnName == "")
// idb = new Fan.iData.DB();
//else
// idb = new Fan.iData.DB(_ConnName);
string sql = @"
select a.[name],a.[length]
,case
when a.xusertype in (127,104,106,62,56,60,108,59,52,122,48) then 0
when a.xusertype in (175,35,167) then 1
when a.xusertype in (239,99,231) then 2
when a.xusertype in (61,58) then 3
when a.xusertype in (165,173,36) then 4
when a.xusertype in (34,98,241,189,256) then -1 else -1 end [xtype]
from syscolumns a
where object_id('" + _tableName + @"')=a.[id] order by a.colid
";
//return idb.GetDataView(sql);
return(DbFactoryProvider.GetProvider(_ConnName).Fill(sql).DefaultView);
#region 0=数值型;1=字符型;2=Unicode字符型;3=日期型;4=二进制数据;-1=不支持的类型
//0=数值型;1=字符型;2=Unicode字符型;3=日期型;4=二进制数据;-1=不支持的类型
//name xtype
//bigint 127
//binary 173
//bit 104
//char 175
//datetime 61
//decimal 106
//float 62
//image 34
//int 56
//money 60
//nchar 239
//ntext 99
//numeric 108
//nvarchar 231
//real 59
//smalldatetime 58
//smallint 52
//smallmoney 122
//sql_variant 98
//sysname 231
//text 35
//timestamp 189
//tinyint 48
//uniqueidentifier 36
//varbinary 165
//varchar 167
//xml 241
#endregion
}
/// <summary>
/// DbProviderFactory实例
/// </summary>
public virtual DbProviderFactory GetInstance()
{
return(_dbProviderFactory ?? (_dbProviderFactory = DbFactoryProvider.GetProvider().GetInstance()));
}