4D v17.4
entitySelection.length
- 4D Language Reference
-
- ORDA - EntitySelection
-
- entitySelection.{attributeName}New
- entitySelection.lengthNew
- entitySelection.queryPathNew
- entitySelection.queryPlanNew
- entitySelection[index]New
- entitySelection.or( )New
- entitySelection.orderBy( )New
- entitySelection.drop( )New
- entitySelection.query( )New
- entitySelection.add( )New
- entitySelection.isOrdered( )New
- entitySelection.minus( )New
- entitySelection.first( )New
- entitySelection.last( )New
- entitySelection.toCollection( )New
- entitySelection.contains( )New
- entitySelection.and( )New
- entitySelection.sum( )New
- entitySelection.count( )New
- entitySelection.min( )New
- entitySelection.max( )New
- entitySelection.slice( )New
- entitySelection.distinct( )New
- entitySelection.average( )New
- Create entity selectionNew
- USE ENTITY SELECTIONNew
4D v17.4
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 v17.1)
4D Language Reference ( 4D v17.2)
4D Language Reference ( 4D v17.3)
4D Language Reference ( 4D v17.4)
© 1985-2020 4D SAS / 4D, Inc. All rights reserved.