Group Value

Except the current value of a variable, you can also use a deviated value. For a header and/or footer it is even impossible to meaningfully use a variable value. You got to choose a group value. The following group values are possible for a variable $V{naam}:

•first: the first value in the series of the variable. Empty if there is no initial value.

•last: the last value in the series of the variable. Empty if there is no last value.

•previous: the previous value in the series of the variable. Empty if there is no previous value.

•next: the next value in the series of the variable. Empty if there is no next value.

•least: the smallest value in the series of the variable. Empty if there is no smallest value.

•greatest: the largest value in the series of the variable. Empty if there is no largest value.

•all: all values in the series of the variable, concatenated together and separated by a comma and space. Empty if there were no values.

•allbutlast: all values in the series of the variable, concatenated together except for the last one, and separated by a comma and space. Empty if there were no values or only one.

•allbutfirst: all values in the series of the variable, concatenated together except for the first one, and separated by a comma and space. Empty if there were no values or only one.

•unique: all unique values in the series of the variable, concatenated together and separated by a comma and space. Empty if there were no values.

A group value is formed by the name of the group, followed by a colon in front of the variable name. Of course you can also combine group values ​​with an alias, such as $V{least: pjt.name}.

A group value can also be used outside and after a foreach. The values of the last <invantive:foreach> are maintained.