X# Runtime and VO SDK Reference

X# Runtime and VO SDK Reference

X# Runtime and SDK Reference

XSharp.RT Namespace

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List of Functions

_accept Function (RT)

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cls Function (RT)

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ConDate Function (RT)

Cos Function (RT)

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CParamCount Function (RT)

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CToD Function (RT)

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Date Function (RT)

Date2Bin Function (RT)

Day Function (RT)

DbApp Function (RT)

DbAppDelim Function (RT)

DbAppend Function (RT)

DbAppSdf Function (RT)

DbAutoLock Function (RT)

DbAutoLockArea Function (RT)

DbAutoUnLock Function (RT)

DbAutoUnLockArea Function (RT)

DbBlobInfo Function (RT)

DbBuffRefresh Function (RT)

DbClearFilter Function (RT)

DbClearIndex Function (RT)

DBClearOrderCondition Function (RT)

DbClearRelation Function (RT)

DbClearScope Function (RT)

DbCloseAll Function (RT)

DbCloseArea Function (RT)

DbCommit Function (RT)

DbCommitAll Function (RT)

DbContinue Function (RT)

DbCopy Function (RT)

DbCopyDelim Function (RT)

DbCopySDF Function (RT)

DbCopyStruct Function (RT)

DbCopyXStruct Function (RT)

DbCreate Function (RT)

DbCreateIndex Function (RT)

DbCreateOrder Function (RT)

DbDelete Function (RT)

DbDeleteOrder Function (RT)

DbDriver Function (RT)

DbEval Function (RT)

DBF Function (RT)

DbFieldInfo Function (RT)

DBFileCopy Function (RT)

DbFilter Function (RT)

DbGetSelect Function (RT)

DbGoBottom Function (RT)

DbGoto Function (RT)

DbGoTop Function (RT)

DbInfo Function (RT)

DbJoin Function (RT)

DbJoinAppend Function (RT)

DbLocate Function (RT)

DbMemoExt Function (RT)

DbMemoField Function (RT)

DbOrderInfo Function (RT)

DbPack Function (RT)

DbRecall Function (RT)

DbRecordInfo Function (RT)

DbReindex Function (RT)

DbRelation Function (RT)

DbRLock Function (RT)

DbRLockList Function (RT)

DbRSelect Function (RT)

DbRUnLock Function (RT)

DbScope Function (RT)

DbSeek Function (RT)

DbSelect Function (RT)

DbSelectArea Function (RT)

DbSetDriver Function (RT)

DbSetFilter Function (RT)

DbSetFound Function (RT)

DbSetIndex Function (RT)

DbSetOrder Function (RT)

DbSetOrderCondition Function (RT)

DbSetRelation Function (RT)

DbSetScope Function (RT)

DbSetSelect Function (RT)

DbSkip Function (RT)

DbSort Function (RT)

DbStruct Function (RT)

DbSymSelect Function (RT)

DbTotal Function (RT)

DbTrans Function (RT)

DbUnLock Function (RT)

DbUnLockAll Function (RT)

DbUpdate Function (RT)

DbUseArea Function (RT)

DbZap Function (RT)

DebOut Function (RT)

Default Function (RT)

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DirChange Function (RT)

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DoError Function (RT)

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DToC Function (RT)

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Empty Function (RT)

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EmptyPSZ Function (RT)

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EnableArrayIndexCheck Function (RT)

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Eof Function (RT)

ErrorBlock Function (RT)

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Eval Function (RT)

Evaluate Function (RT)

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Exp Function (RT)

F2Bin Function (RT)

Fact Function (RT)

FCount Function (RT)

FieldBlock Function (RT)

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FieldGet Function (RT)

FieldGetAlias Function (RT)

FieldGetArea Function (RT)

FieldGetBytes Function (RT)

FieldGetSelect Function (RT)

FieldGetSym Function (RT)

FieldName Function (RT)

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FieldPosSym Function (RT)

FieldPut Function (RT)

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FieldPutBytes Function (RT)

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FieldSym Function (RT)

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FReadLine Function (RT)

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FSeek Function (RT)

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FWriteLine Function (RT)

FWriteText Function (RT)

GetColor Function (RT)

GetRTFullPath Function (RT)

GetThreadCount Function (RT)

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Header Function (RT)

InCollect Function (RT)

IndexCount Function (RT)

IndexExt Function (RT)

IndexHPLock Function (RT)

IndexKey Function (RT)

IndexOrd Function (RT)

InList Function (RT)

InListExact Function (RT)

Integer Function (RT)

IsAccess Function (RT)

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IsInstanceOf Function (RT)

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IsInt64 Function (RT)

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IVarGet Function (RT)

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IVarPut Function (RT)

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IVarPutSelf Function (RT)

JCDOW Function (RT)

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JCYEAR Function (RT)

LastRec Function (RT)

Len Function (RT)

LOG Function (RT)

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Max Function (RT)

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Mod Function (RT)

Month Function (RT)

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MPosToLc Function (RT)

NewIndexLock Function (RT)

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Object2Array Function (RT)

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Oem2AnsiBuff Function (RT)

OOPTree Function (RT)

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OrdBagExt Function (RT)

OrdBagName Function (RT)

OrdCondSet Function (RT)

OrdCount Function (RT)

OrdCreate Function (RT)

OrdDescend Function (RT)

OrdDestroy Function (RT)

OrdFor Function (RT)

OrdIsUnique Function (RT)

OrdKey Function (RT)

OrdKeyAdd Function (RT)

OrdKeyCount Function (RT)

OrdKeyDel Function (RT)

OrdKeyGoto Function (RT)

OrdKeyNo Function (RT)

OrdKeyVal Function (RT)

OrdList Function (RT)

OrdListAdd Function (RT)

OrdListClear Function (RT)

OrdListRebuild Function (RT)

OrdName Function (RT)

OrdNumber Function (RT)

OrdScope Function (RT)

OrdSetFocus Function (RT)

OrdSetRelation Function (RT)

OrdSkipUnique Function (RT)

Pad Function (RT)

PadC Function (RT)

PadL Function (RT)

PadR Function (RT)

PaletteRGB Function (RT)

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PI Function (RT)

Pow Function (RT)

Psz2String Function (RT)

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QOut Function (RT)

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Rand Function (RT)

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Tan Function (RT)

TimePsz Function (RT)

TimePsz24 Function (RT)

Today Function (RT)

Tone Function (RT)

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VoDbAlias Function (RT)

VoDbAliasSym Function (RT)

VoDbAppend Function (RT)

VoDbBlobInfo Function (RT)

VoDbBof Function (RT)

VoDbBuffRefresh Function (RT)

VoDbClearFilter Function (RT)

VoDbClearLocate Function (RT)

VoDbClearRelation Function (RT)

VoDbClearScope Function (RT)

VoDbCloseAll Function (RT)

VoDbCloseArea Function (RT)

VoDbCommit Function (RT)

VoDbCommitAll Function (RT)

VoDbContinue Function (RT)

VoDbCreate Function (RT)

VoDbDelete Function (RT)

VoDbDeleted Function (RT)

VoDbEof Function (RT)

VoDbEval Function (RT)

VoDbFieldGet Function (RT)

VoDbFieldGetBytes Function (RT)

VoDbFieldInfo Function (RT)

VoDbFieldPut Function (RT)

VoDbFieldPutBytes Function (RT)

VoDbFileGet Function (RT)

VoDbFilePut Function (RT)

VoDbFilter Function (RT)

VoDbFlock Function (RT)

VoDbFound Function (RT)

VoDbGetScope Function (RT)

VoDbGetSelect Function (RT)

VoDbGoBottom Function (RT)

VoDbGoto Function (RT)

VoDbGoTop Function (RT)

VoDbInfo Function (RT)

VoDbJoinAppend Function (RT)

VoDbLastRec Function (RT)

VoDbLocate Function (RT)

VoDbMemoExt Function (RT)

VoDbOrdBagExt Function (RT)

VoDbOrdCondSet Function (RT)

VoDbOrdCreate Function (RT)

VoDbOrdDestroy Function (RT)

VoDbOrderInfo Function (RT)

VoDbOrdListAdd Function (RT)

VoDbOrdListClear Function (RT)

VoDbOrdListRebuild Function (RT)

VoDbOrdSetFocus Function (RT)

VoDbPack Function (RT)

VoDbRddCount Function (RT)

VoDbRddInfo Function (RT)

VoDbRddList Function (RT)

VoDbRddName Function (RT)

VoDbRddSetDefault Function (RT)

VoDbRecall Function (RT)

VoDbRecno Function (RT)

VoDbRecordGet Function (RT)

VoDbRecordInfo Function (RT)

VoDbRecordPut Function (RT)

VoDbRelation Function (RT)

VoDbRlock Function (RT)

VoDbRSelect Function (RT)

VoDbSeek Function (RT)

VoDbSelect Function (RT)

VoDbSetFilter Function (RT)

VoDbSetFound Function (RT)

VoDbSetLocate Function (RT)

VoDbSetRelation Function (RT)

VoDbSetScope Function (RT)

VoDbSetSelect Function (RT)

VoDbSkip Function (RT)

VoDbSkipScope Function (RT)

VoDbSort Function (RT)

VoDbSymSelect Function (RT)

VoDbTrans Function (RT)

VoDbTransRec Function (RT)

VoDbUnlock Function (RT)

VoDbUnLockAll Function (RT)

VoDbUseArea Function (RT)

VoDbZap Function (RT)

XSharpLoadLibrary Function (RT)

Year Function (RT)

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DbClearIndex Function

Remove orders from the order list in a work area and close associated index files.

Namespace: XSharp.RT
Assembly: XSharp.RT (in XSharp.RT.dll) Version: 2.21

Syntax

 FUNCTION DbClearIndex(
	uOrder,
	cIndexFile
) AS LOGIC CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public static bool DbClearIndex(
	Usual uOrder = default,
	Usual cIndexFile = default
)

Request Example View Source

Parameters

uOrder (Optional): Type: Usual
The name of the order to clear or a number representing its position in the order list.
Using the order name is the preferred method since the position may be difficult to determine using multiple-order index files.
If not specified, all orders in the specified index file (or the entire work area, if no index file is specified) are cleared.
Invalid values are ignored.
cIndexFile (Optional): Type: Usual
The name of an index file, including an optional drive and directory (no extension should be specified).
Use this argument with uOrder to remove ambiguity when there are two or more orders with the same name in different index files.
Use it alone to close only those orders associated with the specified file.
If cIndexFile is not open by the current process, a runtime error is raised.

Return Value

Type: Logic
TRUE if successful; otherwise FALSE.

Remarks

All pending updates are written to disk prior to closing the index files.
Once the files are closed and the order list cleared, the database file returns to its natural order. By default, this function operates on the currently selected work area.
It can be made to operate on an unselected work area by specifying it within an aliased expression

Examples

The following example closes index files if any are open:

X#

 1DBUseArea(TRUE, "DBFNTX", "sales", "Sales", ;
 2            TRUE)
 3Sales->DBSetIndex("FirstName")
 4Sales->DBSetIndex("LastName")
 5// Are there any open index files?
 6IF Sales->DBOrderInfo(DBOI_NUMBER) > 0
 7    Sales->DBClearIndex()        // Close index files
 8ENDIF
 9// Copy to SDF in natural order
10COPY TO temp SDF

See Also

Reference

Functions, Globals and Defines

XSharp.RT Namespace

DbCreateIndex(Usual, Usual, Usual, Usual)

DbCreateOrder(Usual, Usual, Usual, Usual, Usual)

DbSetIndex(Usual, Usual)

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