FieldAttributeEnum
Specifies one or more attributes of a Field object.
| Constant | Value | Description |
|---|---|---|
| adFldCacheDeferred | 0x1000 | Indicates that the provider caches field values and that subsequent reads are done from the cache. |
| adFldFixed | 0x10 | Indicates that the field contains fixed-length data. |
| adFldIsChapter | 0x2000 | Indicates that the field contains a chapter value, which specifies a specific child recordset related to this parent field. Typically chapter fields are used with data shaping or filters. |
| adFldIsCollection | 0x40000 | Indicates that the field specifies that the resource represented by the record is a collection of other resources, such as a folder, rather than a simple resource, such as a text file. |
| adFldIsDefaultStream | 0x20000 | Indicates that the field contains the default stream for the resource represented by the record. For example, the default stream can be the HTML content of a root folder on a Web site, which is automatically served when the root URL is specified. |
| adFldIsNullable | 0x20 | Indicates that the field accepts null values. |
| adFldIsRowURL | 0x10000 | Indicates that the field contains the URL that names the resource from the data store represented by the record. |
| adFldKeyColumn | 0x8000 | Indicates that the field is the primary key of the underlying rowset. Also can indicate that the field is part of a compound primary key. |
| adFldLong | 0x80 | Indicates that the field is a long binary field. Also indicates that you can use the AppendChunk and GetChunk methods. |
| adFldMayBeNull | 0x40 | Indicates that you can read null values from the field. |
| adFldMayDefer | 0x2 | Indicates that the field is deferred—that is, the field values are not retrieved from the data source with the whole record, but only when you explicitly access them. |
| adFldNegativeScale | 0x4000 | Indicates that the field represents a numeric value from a column that supports negative scale values. The scale is specified by the NumericScale property. |
| adFldRowID | 0x100 | Indicates that the field contains a persistent row identifier that cannot be written to and has no meaningful value except to identify the row (such as a record number, unique identifier, and so forth). |
| adFldRowVersion | 0x200 | Indicates that the field contains some kind of time or date stamp used to track updates. |
| adFldUnknownUpdatable | 0x8 | Indicates that the provider cannot determine if you can write to the field. |
| adFldUnspecified | -1 | Indicates that the provider does not specify the field attributes. |
| adFldUpdatable | 0x4 | Indicates that you can write to the field. |
ADO/WFC Equivalent
Package: com.ms.wfc.data
| Constant |
|---|
| AdoEnums.FieldAttribute.CACHEDEFERRED |
| AdoEnums.FieldAttribute.FIXED |
| AdoEnums.FieldAttribute.ISNULLABLE |
| AdoEnums.FieldAttribute.KEYCOLUMN |
| AdoEnums.FieldAttribute.LONG |
| AdoEnums.FieldAttribute.MAYBENULL |
| AdoEnums.FieldAttribute.MAYDEFER |
| AdoEnums.FieldAttribute.NEGATIVESCALE |
| AdoEnums.FieldAttribute.ROWID |
| AdoEnums.FieldAttribute.ROWVERSION |
| AdoEnums.FieldAttribute.UNKNOWNUPDATABLE |
| AdoEnums.FieldAttribute.UNSPECIFIED |
| AdoEnums.FieldAttribute.UPDATABLE |