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-rw-r--r--documentation/datamodel/datamodel-forms.asciidoc10
1 files changed, 8 insertions, 2 deletions
diff --git a/documentation/datamodel/datamodel-forms.asciidoc b/documentation/datamodel/datamodel-forms.asciidoc
index 8772f0d770..0a040230c6 100644
--- a/documentation/datamodel/datamodel-forms.asciidoc
+++ b/documentation/datamodel/datamodel-forms.asciidoc
@@ -563,14 +563,20 @@ We can also define our own status handler to provide a custom way of handling st
[source, java]
----
+// We will first set the status label's content mode to HTML
+// in order to display generated error messages separated by a <br> tag
+formStatusLabel.setContentMode(ContentMode.HTML);
+
BinderValidationStatusHandler defaultHandler = binder.getValidationStatusHandler();
binder.setValidationStatusHandler(status -> {
// create an error message on failed bean level validations
List<Result<?>> errors = status.getBeanValidationErrors();
+ // collect all bean level error messages into a single string,
+ // separating each message with a <br> tag
String errorMessage = errors.stream().map(Result::getMessage)
- .map(o -> o.get()).collect(Collectors.joining("\n"));
- // show error in a label
+ .map(o -> o.get()).collect(Collectors.joining("<br>"));
+ // finally, display all bean level validation errors in a single label
formStatusLabel.setValue(errorMessage);
formStatusLabel.setVisible(!errorMessage.isEmpty());