4D v16.3

Field name

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4D v16.3
Field name

Field name 


 

Field name ( fieldPtr | tableNum {; fieldNum} ) -> Function result 
Parameter Type   Description
fieldPtr | tableNum  Pointer, Longint in Field pointer or Table number
fieldNum  Longint in Field number if a table number is passed as first parameter
Function result  String in Name of the field

The Field name command returns the name of the field whose pointer you pass in fieldPtr or whose table and field number you pass in tableNum and fieldNum.

This example sets the second element of the array FieldArray{1} to the name of the second field in the first table. FieldArray is a two-dimensional array:

 FieldArray{1}{2}:=Field name(1;2)

This example sets the second element of the array FieldArray{1} to the name of the field [MyTable]MyField. FieldArray is a two-dimensional array:

 FieldArray{1}{2}:=Field name(->[MyTable]MyField)

This example displays an alert. This method passes a pointer to a field:

 ALERT("The ID number for the field "+Field name($1)+" in the table "+Table name(Table($1))+" has to be longer than five characters.")



See also 

Field
Get last field number
Table name

 
PROPERTIES 

Product: 4D
Theme: Structure Access
Number: 257

This command can be run in preemptive processes

 
HISTORY 

Created: < 4D v6

 
ARTICLE USAGE

4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)