MemNext (Function)

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Sorting the memory area
Existence of memory area
Performing a search in a memory area
Equivalence

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See also

MemNext (Function)

In french: MemSuivant

Warning
From version 20, this feature is kept for backward compatibility. We recommend that you use Associative arrays.

Positions on the next element of a memory zone and returns the value of this element.

Versions 15 and later

This function is now available for Android applications.

New in version 15

This function is now available for Android applications.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Android widget mode.

New in version 18

This function is now available in Android widget mode.

Versions 22 and later

This function is now available in Universal Windows 10 App mode.

New in version 22

This function is now available in Universal Windows 10 App mode.

Versions 26 and later

This function is now available for Apple Watch applications.

New in version 26

This function is now available for Apple Watch applications.

Example

// Positions on the next element found in "MyMemoryZone"
// and returns the value of this element
ResNext = MemNext("MyMemoryZone")

Syntax

<Result> = MemNext(<Memory area>)

<Result>: Any type

If the next element exists: return value of the next element, defined by MemAdd or MemModify.
If the next element does not exist: an empty string ("").

<Memory area>: Character string

Name of the memory area, defined by MemCreate.

Remarks

Sorting the memory area

The sorts performed by MemSort are taken into account during the call to MemNext.

If no sort was requested, MemNext returns the value of the next element according to the order of the elements added by MemAdd.

Existence of memory area

The existence of the memory zone is not checked.

If the specified memory area does not exist, a WLanguage error occurs when MemNext is used.

To check the existence of a memory area, use MemExist.

Performing a search in a memory area

If MemSeek is used before the call to MemNext, MemNext will be positioned on the next element sought.

Equivalence

The two following syntaxes are equivalent:

Res = MemNext(<Memory area>)

Res = MemRetrieve(<Memory area>, MemCurrent(<Memory area>)+1)

Business / UI classification: Neutral code

Component: wd270std.dll