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XSharpLoadLibrary Function (RT)

Year Function (RT)

DbSelectArea Function

Change the current work area.

Namespace: XSharp.RT
Assembly: XSharp.RT (in XSharp.RT.dll) Version: 2.19

Syntax

Copy

 FUNCTION DbSelectArea(
	uArea
) AS LOGIC CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public static bool DbSelectArea(
	Usual uArea = default
)

Request Example View Source

Parameters

uArea (Optional): Type: Usual
A number that specifies the work area to be selected. or the alias of the work area to be selected.

Return Value

Type: Logic
TRUE if successful; otherwise, FALSE.

Remarks

DBSelectArea() causes the specified work area to become the current work area.
All subsequent database operations will apply to this work area unless another work area is explicitly specified for an operation. DBSelectArea() performs the same function as the SELECT command.
For more information, refer to the SELECT command.

Tip
Selecting 0: Selecting work area 0 causes the lowest numbered unoccupied work area to become the current work area. Aliased expressions: The alias operator (->) can temporarily select a work area while an expression is evaluated and automatically restore the previously selected work area afterward.

Examples

The following example selects a work area via the alias name:

Copy

1cLast := "Winston"
2DBUseArea(TRUE, "DBFNTX", "sales", "Sales", TRUE)
3Sales->DBSetIndex("salefnam")
4Sales->DBSetIndex("salelnam")
5DBUseArea(TRUE, "DBFNTX", "colls", "Colls", TRUE)
6Colls->DBSetIndex("collfnam")
7Colls->DBSetIndex("colllnam")
8DBSelectArea("Sales")        // Select Sales workarea
9DBSelectArea("Colls")        // Select Colls workarea

Reference

Functions, Globals and Defines

XSharp.RT Namespace

DbUseArea(Usual, Usual, Usual, Usual, Usual, Usual, Usual, Usual, Usual)

Select(Usual)