DBFMEMOCDX 类 |  |
DBFFPT RDD. For DBF/FPT. No index support at this level
继承层次命名空间： XSharp.RDD
程序集： XSharp.Rdd (在 XSharp.Rdd.dll 中) 版本：2.22 GA
语法DBFMEMOCDX 类型公开以下成员。
构造函数| 名称 | 说明 | |
|---|---|---|
 | DBFMEMOCDX | 初始化 DBFMEMOCDX 类的一个新实例 |
属性| 名称 | 说明 | |
|---|---|---|
 | Alias | Retrieve the alias name. (继承自 Workarea。) |
| Area | Retrieve the Workarea number. (继承自 Workarea。) |
| BoF | Is the table at the logical beginning-of-file. (继承自 DBF。) |
| Bottom | Is at bottom ? (继承自 Workarea。) |
| Closed | Has the workarea been closed. (继承自 Workarea。) |
| Deleted | Is the current row deleted? (继承自 DBF。) |
| Driver | Driver (RDD) name of the object. (重写 Driver.) |
| EoF | Is the table at the logical end-of-file. (继承自 DBF。) |
| Exclusive | Is the Workarea opened Exclusively (继承自 Workarea。) |
| FieldCount | The # of fields in the current Workarea. (继承自 DBF。) |
| FileName | File name of the main file (继承自 Workarea。) |
| FilterInfo | Current Filter (继承自 Workarea。) |
| FilterText | The filter condition as a string. (继承自 Workarea。) |
| Found | (继承自 DBF。) |
| HasProperties | Does the workarea have properties. (继承自 Workarea。) |
| HasRelations | Does the workarea have relations. (继承自 Workarea。) |
| IsHot | Is the current row (继承自 DBF。) |
| IsNewRecord | Is the current row a new record (the result of Append()) (继承自 DBF。) |
| Memo | Current memo implementation. (继承自 Workarea。) |
| NullColumn | (继承自 DBF。) |
| OrderCondInfo | Current Order condition (继承自 Workarea。) |
| Properties | (继承自 Workarea。) |
| ReadOnly | Is the file opened ReadOnly ? (继承自 Workarea。) |
| RecCount | The number of rows. (继承自 DBF。) |
| RecId | The row identifier at the current cursor position. (继承自 Workarea。) |
| RecNo | The physical row identifier at the current cursor position. (继承自 DBF。) |
| RecordBuffer | Current Record (继承自 Workarea。) |
| ReturnRawData | (继承自 DBFFPT。) |
| Shared | Is the current Workarea opened Shared? (继承自 Workarea。) |
| Top | Is at top? (继承自 Workarea。) |
方法| 名称 | 说明 | |
|---|---|---|
| _CloseAllIndexes | (继承自 DBFCDX。) |
| _getMemoBlockNumber | (继承自 DBF。) |
| AddField |
Add a Field to the _Fields List. Fields are added in the order of method call
(继承自 DBF。) |
| Append | Append a blank row and position the cursor to the new row. (继承自 DBF。) |
| AppendLock | Add a newly appended row to the list of locked rows. (继承自 DBF。) |
| BlobInfo | Retrieve information about a memo column. (继承自 DBF。) |
| ChildEnd | Report the initialization of a relation. (继承自 DBF。) |
| ChildStart | Report the initialization of a relation. (继承自 DBF。) |
| ChildSync | Post a pending relational movement, indicating that the specified child work area has been affected by a parental movement. (继承自 DBF。) |
| ClearFilter | (继承自 DBFCDX。) |
| ClearRel | Clear relations. (继承自 DBF。) |
| ClearScope | Clear the active locate condition. (继承自 DBF。) |
| Close | (继承自 DBFCDX。) |
| CloseMemFile | Close the memo file (继承自 DBF。) |
| Compile | Compile an expression. (继承自 DBF。) |
| Continue | Goto the next record based on the corrent locate condition. (继承自 DBF。) |
| Create | Create a table. (重写 Create(DbOpenInfo).) |
| CreateFields | Add columns defined in an array. (继承自 Workarea。) |
| CreateMemFile | Create the memo file (继承自 DBF。) |
| DbEval | Evaluate a code block for each row. (继承自 DBF。) |
| Delete | Mark the row at the current cursor position for deletion. (继承自 DBF。) |
| Dispose | (继承自 Workarea。) |
| Dispose(Boolean) | (继承自 Workarea。) |
| EvalBlock | Evaluate a code block. (继承自 DBF。) |
| EvalFilter | (继承自 DBF。) |
| FieldIndex | Return the ONE based field index for a field name. (继承自 DBF。) |
| FieldInfo | (重写 FieldInfo(Int32, Int32, Object).) |
| FieldName | Retrieve a column name based on its ONE based column number. (继承自 DBF。) |
| Flush | (继承自 DBFCDX。) |
| ForceRel | (继承自 DBFCDX。) |
| GetField |
Return the (1 based) RddFieldInfo object for the specified field
(继承自 Workarea。) |
| GetRec | Retrieve the RDD's record buffer as array of bytes. (继承自 DBF。) |
| GetScope | Retrieve the active locate condition. (继承自 DBF。) |
| GetValue | Get a value for the specified column. (重写 GetValue(Int32).) |
| GetValueFile | Get the value for a column and write (export) it to an external file. (继承自 DBF。) |
| GetValueLength | Get the length of the for the specified column. (继承自 DBF。) |
| GoBottom | (继承自 DBFCDX。) |
| GoCold | (继承自 DBFCDX。) |
| GoHot | (继承自 DBFCDX。) |
| GoTo | (继承自 DBFCDX。) |
| GoToId | Position the cursor to a specific, physical identity. (继承自 DBF。) |
| GoTop | (继承自 DBFCDX。) |
| HeaderLock | Lock or unlock the header of a database file. (继承自 DBF。) |
| Info | Retrieve and optionally change information about a work area. (重写 Info(Int32, Object).) |
| Lock | Perform a lock. (继承自 DBF。) |
| Open | (继承自 DBFCDX。) |
| OpenMemFile | Open the memo file (继承自 DBF。) |
| OrderCondition | (继承自 DBFCDX。) |
| OrderCreate | (继承自 DBFCDX。) |
| OrderDestroy | (继承自 DBFCDX。) |
| OrderInfo | (继承自 DBFCDX。) |
| OrderListAdd | (继承自 DBFCDX。) |
| OrderListDelete | (继承自 DBFCDX。) |
| OrderListFocus | (继承自 DBFCDX。) |
| OrderListRebuild | (继承自 DBFCDX。) |
| Pack | (继承自 DBFCDX。) |
| PutRec | Replace the row at the current cursor position with the contents of a byte array. (继承自 DBF。) |
| PutValue | (重写 PutValue(Int32, Object).) |
| PutValueFile | Read (Import) a value from an external file and write it to the specified column. (重写 PutValueFile(Int32, String).) |
| Recall | Remove the deletion marker from the row at the current cursor position. (继承自 DBF。) |
| RecInfo | Retrieve and optionally change information about a row. (继承自 DBF。) |
| Refresh | Discard all changes to the current record and reread the buffer from disk. When the current buffer is in Append mode then the server will move to the bottom of the file. (继承自 DBF。) |
| RelArea | Retrieve the logical number of a related work area. (继承自 DBF。) |
| RelEval | Evaluate a code block against the relation in a work area. (继承自 DBF。) |
| RelText | Retrieve the key expression of a relation. (继承自 DBF。) |
| Seek | (继承自 DBFCDX。) |
| SetFieldExtent | Set the Number of Fields the AddField Method will add. (继承自 DBF。) |
| SetFilter | (继承自 DBFCDX。) |
| SetRel | Set a relation. (继承自 DBF。) |
| SetScope | Set the locate condition. (继承自 DBF。) |
| Skip | Position the cursor relative to its current position. (继承自 DBF。) |
| SkipFilter | Position the cursor, respecting scope and filter conditions. (继承自 DBF。) |
| SkipRaw | (继承自 DBFCDX。) |
| SkipScope | Position the cursor relative to its current position within the current scope. (继承自 DBF。) |
| Sort | Physically reorder a table. (继承自 DBF。) |
| SyncChildren | Force relational movement in child work areas to synchronize them with the parent work area. (继承自 DBF。) |
| Trans | Copy one or more rows from one work area to another. (继承自 DBF。) |
| TransRec | Copy a single row from one work area to another. (继承自 DBF。) |
| UnLock | Release locks. (继承自 DBF。) |
| Zap | (继承自 DBFCDX。) |
字段| 名称 | 说明 | |
|---|---|---|
 | _Fields | List of Fields (继承自 Workarea。) |
| RLHitCount | (继承自 DBF。) |
| RLMissCount | (继承自 DBF。) |
参见