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Questions tagged [vaadin10]

Vaadin is a web development platform that consists of components, a Java framework, and tooling. Vaadin 10 is the first release that is not based on GWT anymore but supports webcomponents. Vaadin 10 was superseded by Vaadin 14 in August 2019. Vaadin 10 is supported until Jun 2023, extended maintenance commercially available until Jun 2033.

Vaadin 10 (aka Vaadin Flow) is an open source web application framework for rich internet applications.

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How to get Vaadin Valo Facebook Theme

So, I'm new to Vaadin, but am interested in using the "Facebook" theme as shown in their demo from here: https://demo.vaadin.com/valo-theme/#!buttons-and-links (and then choose "Facebook" in the top right corner). But, when downloading the latest…
Jonathan Sylvester
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Positioning a component in Vaadin Designer 3?

I use Vaadin Designer for framework 7. In this designer I can drag and drop a component and moving the component by clicking on it a moving it to the area I want. And trying to do the same with the new Vaadin Designer 3. But it seems that…
Diego Quirós
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Vaadin Flow Exception on Application call - VaadinSession cannot be cast to VaadinSession

We're currently developing a new Vaadin Web Application based on a Vaadin Flow Starter pack. It runs with a jetty server, that is started through a maven call. Lately an error has been popping off quite often that prevents me from accessing the…
Benedikt Schmidt
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Vaadin Why is my setvisible not working? Design is always shown

I'm working on a Maven, Vaadin with Designer and i can not resolve why my code is still showing me "test" and "test2" because through the testView2.setVisible(false) the "test2" label should be hidden. Here is all relevant code. Hope anyone can…
cyflex
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Vaadin flow - Grid column empty

Vaadin 11.0.1 Layout is one top grid and to bottom grid (one on left, one on right) Here is how I create my page: public class InformationMainView extends VerticalLayout { private Grid gridRejet = new Grid<>(); private…
Tyvain
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upload addon vaadin to repository maven.vaadin

good day, I would like to load my addon vaadin in maven vaadin, I have already loaded it in the vaadin directory, but I do not know how to publish it in the maven vaadin repository. I thought that this process was done automatically when uploading…
Sergio Hilerio
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Vaadin grid - restrict concurrent modification of record

I need to restrict that multiple users can't edit same record at the same time. Any idea how to do that in vaadin grid, what would be the best approach? I'm using vaadin flow. thanks
user1598696
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Vaadin upload - TypeError: Cannot read property 'sizeBase' of null

Vaadin version: 11.0.2 upload component : https://vaadin.com/components/vaadin-upload When I upload a big file, and get an error on the client side (nothing in the server side): client-D1AD34905AC1AA5B4DBECA8FB0306D92.cache.js:197 TypeError: Cannot…
Tyvain
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Vaadin 10+: Which jars does tomcat have to scan?

To speed up tomcat startup, I usually configure (dramatic effect): tomcat.util.scan.StandardJarScanFilter.jarsToSkip=*.jar tomcat.util.scan.StandardJarScanFilter.jarsToScan=myapp.jar But skipping everything breaks Vaadin 11. I…
Reto Höhener
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Vaadin Flow Grid - how to control the columns when using JPA Entity?

If I use JPA and Vaadin 10 Grid, it adds all the columns in an arbitrary order to the display. grid = new Grid<>(Thing.class); add(grid); How do I make it add just one or two columns, and have control over the order, sizing, widths, etc. My…
antonyh
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ExternalResource in Vaadin 10 - Custom Icons for Button

I would like to use a custom icon from a picture file in Vaadin 10. Up to Vaadin 8 it was possibleto load the icon file via ExternalResource: public final static Resource MY_ICON = new ExternalResource("VAADIN/images/my_icon.png"); and then just…
d2k2
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Vaadin Flow/10/11 style component via css

My question is pretty basic. How to add styling from a css-file to a basic vaadin component? What I do NOT want to use: PolymerTemplate getStlye().set(...) Do I have to @ImportHtml, which includes the css-code or do I have to @StyleSheet with the…
unknown404
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Getting java.lang.NoClassDefFoundError: com/vaadin/data/Property using Metawidget with Vaadin

I am trying to use Metawidget with Vaadin and getting the following error when I run my code java.lang.NoClassDefFoundError: com/vaadin/data/Property I am using Vaadin 8 and Metawidget 4.2 (latest available release). I did track down the exception…
Pramod CS
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Polymer resource URLs does'nt work under 'context' when running on Tomcat container

I have a simple Vaadin Flow app (with SpringBoot integration) deployed under Tomcat as war file. App is running fine in dev mode localy, but when deployed in container under context, its not showing anything. When I look into page source I can see…
David Marko
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Where to place stylesheets in a vaadin 10 spring boot application

I am testing out a vaadin 10 application using spring boot. I used https://start.spring.io/ to generate a project. I followed the documentation of vaadin https://vaadin.com/docs/v10/flow/importing-dependencies/tutorial-include-css.html. There the…
yusufnazir
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