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

X#
Return the key expression of a specified single-order index.

Namespace:  XSharp.VO.SDK
Assembly:  XSharp.VORDDClasses (in XSharp.VORDDClasses.dll) Version: 2.21
Syntax
Copy
 VIRTUAL METHOD IndexKey(
	uOrder AS USUAL
) AS USUAL
Request Example View Source

Parameters

uOrder
Type: Usual
The name of an order, or the ordinal position of the order within the order list. A value of 0 specifies the controlling index, without regard to its actual position in the list.

Return Value

Type: Usual
The key expression of the specified index as a string; if there is no corresponding order or the order name is not unique, the method returns a NULL_STRING.
Remarks
The key expression actually belongs to an order and not to an index file. When using single-order indexes, or when the order name uniquely identifies an order, requesting key information for an index with IndexKey() works. But this practice is not recommended, since the request may not work when a different driver is used.
See Also