X# Runtime and VO SDK Reference
X# Runtime and VO SDK Reference
VO Namespace
DbServer Class
DbServer Methods
DbServer.Append Method
DbServer.AppendDB Method
DbServer.AppendDelimited Method
DbServer.AppendSDF Method
DbServer.Average Method
DbServer.BLOBDirectExport Method
DbServer.BLOBDirectGet Method
DbServer.BLOBDirectImport Method
DbServer.BLOBDirectPut Method
DbServer.BLOBExport Method
DbServer.BLOBGet Method
DbServer.BLOBImport Method
DbServer.BLOBRootGet Method
DbServer.BLOBRootLock Method
DbServer.BLOBRootPut Method
DbServer.BLOBRootUnlock Method
DbServer.ClearFilter Method
DbServer.ClearIndex Method
DbServer.ClearLocate Method
DbServer.ClearOrderScope Method
DbServer.ClearRelation Method
DbServer.ClearScope Method
DbServer.Close Method
DbServer.Commit Method
DbServer.ConstructUniqueAlias Method
DbServer.Continue Method
DbServer.CopyDB Method
DbServer.CopyDelimited Method
DbServer.CopySDF Method
DbServer.CopyStructure Method
DbServer.Count Method
DbServer.CreateIndex Method
DbServer.CreateOrder Method
DbServer.DataField Method
DbServer.Delete Method
DbServer.DeleteAll Method
DbServer.DeleteOrder Method
DbServer.Error Method
DbServer.Eval Method
DbServer.FIELDGET Method
DbServer.FieldGetBytes Method
DbServer.FieldGetFormatted Method
DbServer.FieldHyperLabel Method
DbServer.FieldInfo Method
DbServer.FieldName Method
DbServer.FieldPos Method
DbServer.FIELDPUT Method
DbServer.FieldPutBytes Method
DbServer.FieldSpec Method
DbServer.FieldStatus Method
DbServer.FieldSym Method
DbServer.FieldValidate Method
DbServer.FLOCK Method
DbServer.GetArray Method
DbServer.GetLocate Method
DbServer.GetLookupTable Method
DbServer.GoBottom Method
DbServer.GoTo Method
DbServer.GoTop Method
DbServer.INDEXKEY Method
DbServer.INDEXORD Method
DbServer.Info Method
DbServer.Join Method
DbServer.Locate Method
DbServer.LockCurrentRecord Method
DbServer.LockSelection Method
DbServer.NoIVarGet Method
DbServer.NoIVarPut Method
DbServer.Notify Method
DbServer.OrderDescend Method
DbServer.OrderInfo Method
DbServer.OrderIsUnique Method
DbServer.OrderKeyAdd Method
DbServer.OrderKeyCount Method
DbServer.OrderKeyDel Method
DbServer.OrderKeyGoTo Method
DbServer.OrderKeyNo Method
DbServer.OrderScope Method
DbServer.OrderSkipUnique Method
DbServer.Pack Method
DbServer.RDDINFO Method
DbServer.Recall Method
DbServer.RecallAll Method
DbServer.RecordInfo Method
DbServer.Refresh Method
DbServer.Reindex Method
DbServer.Relation Method
DbServer.Replace Method
DbServer.ResetNotification Method
DbServer.RLOCK Method
DbServer.RLockVerify Method
DbServer.Seek Method
DbServer.SELECT Method
DbServer.SetDataField Method
DbServer.SetFilter Method
DbServer.SetIndex Method
DbServer.SetOrder Method
DbServer.SetOrderCondition Method
DbServer.SetRelation Method
DbServer.SetSelectiveRelation Method
DbServer.Skip Method
DbServer.Sort Method
DbServer.Sum Method
DbServer.SuspendNotification Method
DbServer.Total Method
DbServer.UnLock Method
DbServer.Update Method
DbServer.Zap Method
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DbServer.FIELDGET Method

X#
Get the contents of a field that is identified by its position.

Namespace:  VO
Assembly:  VORDDClasses (in VORDDClasses.dll) Version: 2.19
Syntax
Copy
 VIRTUAL METHOD FIELDGET(
	uField
) AS USUAL CLIPPER
Request Example View Source

Parameters

uField (Optional)
Type: Usual
The name, number, or symbol representing the desired field.

Return Value

Type: Usual
The value of the specified field. If nFieldPos does not correspond to the position of any field in the current data server, DBServer:FieldGet() returns NIL.
Remarks
DBServer:FieldGet() retrieves the value of a field using its position within the database file structure rather than its field name. Within generic database service functions this allows, among other things, the retrieval of field values without use of the macro operator.
Tip Tip
DBServer:FieldGet() can be used with a BLOB field (that is, a memo field associated with a BLOB file), provided the length of the field does not exceed 64KB. For BLOB fields longer than 64KB, use DBServer:BLOBGet() instead.
Examples
This example compares DBServer:FieldGet() to functionally equivalent code that uses the macro operator to retrieve the value of a field:
X#
Copy
1LOCAL nFieldPos := 1, FName, FVal
2LOCAL oDBCust := Customer{} AS DBServer
3// Get field value using macro operator
4FName := oDBCust:FieldName(nFieldPos)
5FVal := &FName
6// Get field value using FieldGet()
7FVal := oDBCust:FieldGet(nFieldPos)
8FVal := oDBCust:FieldGet( #Fname )
9Fval := oDBCust:FieldGet( "Fname" )
See Also