From: Aleksi Hietanen <aleksi@vaadin.com>
Date: Wed, 12 Oct 2016 12:52:38 +0000 (+0300)
Subject: Fix BoV custom ValidationStatusHandler example
X-Git-Tag: 8.0.0.alpha5~19
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=b66631c3dc5d79caa6a78274d2ea4107ccae7973;p=vaadin-framework.git

Fix BoV custom ValidationStatusHandler example

Change-Id: I94d82a6200197a6d9f6b31d66153a140333b5b1e
---

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());