public DBType(DBType parmDBType)
{
m_Type = parmDBType.Type;
m_Length = parmDBType.Length;
m_Decimal = parmDBType.Decimal;
m_Sign = parmDBType.Sign;
}
public SqlColumnCondition(string fieldName, EDBType dbtype)
{
if (fieldName == string.Empty || fieldName == null)
{
throw new ArgumentNullException("字段名不能为空！");
}
this.fieldName = fieldName;
this.dbtype = dbtype;
}
public BasicDataTypeInfo(EDBType type, string name, int length, int decimals, bool signed, bool allowLength, bool allowDecimals, bool allowSign)
{
Type = type;
Name = name;
Description = name;
AllowLength = allowLength;
AllowDecimals = allowDecimals;
AllowSign = allowSign;
m_Length = length;
m_Decimals = decimals;
m_Signed = false;
}
public static bool IsStandardType(EDBType type)
{
return(type == EDBType.BINARY ||
type == EDBType.CHARACTER ||
type == EDBType.DATE ||
type == EDBType.DATETIME ||
type == EDBType.GUID ||
type == EDBType.INT ||
type == EDBType.LONGVARCHAR ||
type == EDBType.NUMERIC ||
type == EDBType.PACKED ||
type == EDBType.VARCHAR ||
type == EDBType.ZONED ||
type == EDBType.BITMAP ||
type == EDBType.Boolean ||
type == EDBType.VIDEO ||
type == EDBType.AUDIO ||
type == EDBType.BINARYFILE ||
type == EDBType.GEOGRAPHY ||
type == EDBType.GEOPOINT ||
type == EDBType.GEOLINE ||
type == EDBType.GEOPOLYGON
);
}
public BasicDataTypeInfo(EDBType type, string name, int length, int decimals, bool signed, bool allowLength)
: this(type, name, length, decimals, signed, allowLength, false, false)
{
}
public static bool IsString(EDBType dbtype)
{
return(CHARACTER_TYPES.Contains(dbtype));
}
