4D v17 R5
entitySelection.length
- 4D Language Reference
-
- ORDA - EntitySelection
-
- entitySelection.{attributeName}
- entitySelection.length
- entitySelection.queryPath
- entitySelection.queryPlan
- entitySelection[index]
- entitySelection.or( )
- entitySelection.orderBy( )
- entitySelection.drop( )
- entitySelection.query( )Upd
- entitySelection.add( )
- entitySelection.isOrdered( )
- entitySelection.minus( )
- entitySelection.first( )
- entitySelection.last( )
- entitySelection.toCollection( )
- entitySelection.contains( )
- entitySelection.and( )
- entitySelection.sum( )
- entitySelection.count( )
- entitySelection.min( )
- entitySelection.max( )
- entitySelection.slice( )
- entitySelection.distinct( )
- entitySelection.average( )
- entitySelection.getDataClass( )New
- Create entity selectionUpd
- USE ENTITY SELECTION
4D v17 R5
entitySelection.length
entitySelection.length
| Parameter | Type | Description | ||||||
| entitySelection.length | Longint |
|
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
HISTORY
Created: 4D v17
ARTICLE USAGE
4D Language Reference ( 4D v17)
4D Language Reference ( 4D v17 R5)
4D Language Reference ( 4D v17.1)
4D Language Reference ( 4D v17.2)
4D Language Reference ( 4D v17.3)
4D Language Reference ( 4D v17.4)
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