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  • Sorting the memory area
  • Existence of memory area
  • Performing a search in a memory area
  • Equivalence
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Stored procedures
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
Android This function is now available for Android applications.
New in version 15
Android This function is now available for Android applications.
Android This function is now available for Android applications.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 18 and later
Android Widget This function is now available in Android widget mode.
New in version 18
Android Widget This function is now available in Android widget mode.
Android Widget This function is now available in Android widget mode.
Versions 22 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 22
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Versions 26 and later
Apple Watch This function is now available for Apple Watch applications.
New in version 26
Apple Watch This function is now available for Apple Watch applications.
Apple Watch 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
Minimum version required
  • Version 9
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