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- 4D Language Reference
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- ORDA - EntitySelection
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entitySelection.{attributeName}
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entitySelection.add( )
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entitySelection.and( )
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entitySelection.average( )
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entitySelection.contains( )
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entitySelection.copy( )
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entitySelection.count( )
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entitySelection.distinct( )
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entitySelection.drop( )
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entitySelection.extract( )
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entitySelection.first( )
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entitySelection.getDataClass( )
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entitySelection.isAlterable( )
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entitySelection.isOrdered( )
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entitySelection.last( )
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entitySelection.length
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entitySelection.max( )
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entitySelection.min( )
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entitySelection.minus( )
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entitySelection.or( )
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entitySelection.orderBy( )
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entitySelection.orderByFormula( )
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entitySelection.query( )
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entitySelection.queryPath
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entitySelection.queryPlan
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entitySelection.refresh( )
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entitySelection.slice( )
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entitySelection.sum( )
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entitySelection.toCollection( )
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entitySelection[index]
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Create entity selection
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USE ENTITY SELECTION
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4D v19.8
entitySelection.length
entitySelection.length
| entitySelection.length -> Size of the entity selection | ||||||||
| Parameter | Type | Description | ||||||
| Size of the entity selection | Longint |
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Number of entities in the entity selection | |||||
The entitySelection.length property returns the number of entities in the entity selection. If the entity selection is empty, it returns 0.
Entity selections always have a length property.
C_LONGINT(vSize)
vSize:=ds.Employee.query("gender = :1";"male").length
ALERT(String(vSize)+" male employees found.")
See also
PROPERTIES
Product: 4D
Theme: ORDA - EntitySelection
PAGE CONTENTS
HISTORY
Created: 4D v17
ARTICLE USAGE
4D Language Reference ( 4D v19)
4D Language Reference ( 4D v19.1)
4D Language Reference ( 4D v19.4)
4D Language Reference ( 4D v19.5)
4D Language Reference ( 4D v19.6)
4D Language Reference ( 4D v19.7)
4D Language Reference ( 4D v19.8)
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