Parameterized Custom Label

Question

Is there a way to parameterize a custom label? Example:

Label name: MyTestLabel

Label value: Thank you, {0}, for your feedback.

Then in Apex, do something like this:

String name = 'John';
String label = Label.MyTestLabel;
String value = String.valueOf(label, name);

The idea being that the value variable would now hold "Thank you, John, for your feedback.

Answer 1

You can do this using the String.format() method which can provide parameter substitution on your label. The second parameter to this method is a List type and contains your parameters to be substituted.

Label name: MyTestLabel
Label value: Thank you, {0}, for your feedback.


List<String> parameters = new List<String>();
parameters.add('John');

String label = Label.MyTestLabel;
String value = String.format(label, parameters);

You can do it in one line like this as well:

string.format(Label.MyTestLabel, new String[]{'John'});
string.format(Label.MyTestLabel, new List<String>{'John'});