FieldValue - script and chart function

FieldValue() returns the value found in position elem_no of the field field_name (by load order).

Syntax:

FieldValue(field_name , elem_no)

Return data type: dual

Arguments:

Arguments
Argument	Description
field_name	Name of the field for which the value is required. For example, the column in a table. Must be given as a string value. This means that the field name must be enclosed by single quotes.
elem_no	The position (element) number of the field following the load order, that the value is returned for. This could correspond to the row in a table, but it depends on the order in which the elements (rows) are loaded.

Limitations:

If elem_no is larger than the number of field values, NULL is returned.
Sorting on y-values in charts or sorting by expression columns in tables is not allowed when this chart function is used in any of the chart's expressions. These sort alternatives are therefore automatically disabled. When you use this chart function in a visualization or table, the sorting of the visualization will revert back to the sorted input to this function. This limitation does not apply to the equivalent script function.

Load script

Load the following data as an inline load in the data load editor to create the example below.

Names:
					
LOAD * inline [
First name|Last name|Initials|Has cellphone
John|Anderson|JA|Yes
Sue|Brown|SB|Yes
Mark|Carr|MC |No
Peter|Devonshire|PD|No
Jane|Elliot|JE|Yes
Peter|Franc|PF|Yes ] (delimiter is '|');
					
John1:
					
Load FieldValue('First name',1) as MyPos1
Resident Names;

Peter1:

Load FieldValue('First name',5) as MyPos2
Resident Names;

For more information about using inline loads, see Inline loads.

Create a visualization

Create a table visualization in a Qlik Sense sheet. Add fields First name, MyPos1, and MyPos2 to the table.

Result

First name	MyPos1	MyPos2
Jane	John	Jane
John	John	Jane
Mark	John	Jane
Peter	John	Jane
Sue	John	Jane

Explanation

FieldValue('First name','1') results in John as the value for MyPos1 for all first names because John appears first in the load order of the First name field. Note that in a filter pane John would appear as number 2 from the top, after Jane, as it's sorted alphabetically and not as in the load order.

FieldValue('First name','5') results in Jane as the value for MyPos2 for all first names because Jane appears fifth in the load order of the First name field.

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