1,417 questions
0 votes
0 answers
36 views
JavaScript for hashing password field in Vaadin 7
I have a problem finding a solution to changing the value of the password field before triggering action listeners on the backend of Vaadin. enter image description here Here is the thing - when I ...
0 votes
0 answers
76 views
Vaadin 7: Uploading large files in background thread
In Vaadin 7 (or Vaadin 8, I suppose), how do we upload files in a background thread, using Vaadin Upload component? The Vaadin documentation has examples of using the progress bar, but no examples of ...
0 votes
0 answers
82 views
Vaadin 7 UI in one browser tab waiting on UI in another browser tab
In Vaadin 7, I have two browser tabs open, looking at the same View, same search t ime. In both, I log when I click a button to Tomcat log. The second waits until the first finishes. Why? [2024-01-...
2 votes
2 answers
2k views
Best way migrate from vaadin 7 to vaadin 24
The essence of the question is in the name. I have a big legacy project on vaadin 7.7.15. There is a need to switch to the modern version of vaadin 24. Are there any best practices besides rewriting ...
1 vote
1 answer
200 views
Downloading a file using Vaadin
Here is my code to try to download a file using Vaadin. The button function is added within a component. Button button = new Button("Generate"); @Override public void buttonClick(ClickEvent ...
0 votes
0 answers
83 views
Testing text on vcf-nav-item with child items
I'm developing tests with Vaadin TestBench and I'm having difficulties with a particular scenario. For the given generated HTML (adapted from a vaadin/vcf-nav GitHub repository example): <vcf-nav ...
0 votes
0 answers
33 views
setResolution for Datefield is not working in vaadin8
setResolution(Resolution.MINUTE)is not working in vaadin8 Datefield.But its working properly in vaadin 7 datefield.setDateformat("dd/MM/yyyy HH:mm"); datefield.setResolution(Resolution....
0 votes
0 answers
64 views
Methods not found while upgrading from Vaadin7 to Vaadin8
Update from vaadin 7.7.6 to vaadin 8.20.0 I am trying to upgrade my project from vaadin7 to vaadin8. I am not able to find the alternatives for below method. In my existing code, below methods has ...
0 votes
0 answers
84 views
Vaadin 7 grid freezing drops the column with componentRenderer
I'm trying to create a component to configure the grid (sorting, filtering, pinning columns, and so on). Everything works well for standard speakers. I specify the number of frozen columns and they ...
0 votes
2 answers
53 views
why listener defined in a subclass seems that aren't defined
I have a class that contains has a private member a combobox and extended CostomComponet as: class TelefonoWidgetView extends CustomComponent { private ComboBox comboRecTel; private VerticalLayout ...
0 votes
0 answers
78 views
Some methods are not present while updating from vaadin7 to vaadin8
Update from vaadin 7.7.6 to vaadin 8 I am trying to upgrade my project from java8 to java11 and from vaadin7 to vaadin8. I am not able to find the alternatives for few vaadin methods in vaadin 8. The ...
0 votes
1 answer
81 views
How to not display password inside v-uiId and rpc vaadin 7
How do I not display the password inside the v-uiId in rpc, using vaadin 7.7.14. My password field looks like this: PasswordField senha = new PasswordField("Senha"); And how is it inside ...
1 vote
1 answer
212 views
Vaadin grid, how to header wrap caption
In Vaadin 7, how do you wrap the caption in the grid header? Right now the column is much wider then it needs to be based on the expected data, so the users want the column heading wrapped. I tried ...
0 votes
1 answer
102 views
Vaadin 7 to 8 upgrade widgetset
We want to upg. 7 to 8. vaadin application. I tried to migrate the application vaadin framework migration tool etc. Also, we have custom widgetset and I followed the instructions https://vaadin.com/...
0 votes
0 answers
108 views
Vaadin 7 - Widgetset does not contain an implementation for org.vaadin.addons.comboboxmultiselect.ComboBoxMultiselect
Project is using Vaadin 7. My gwt.xml contains : <inherits name="org.vaadin.addons.comboboxmultiselect.WidgetSet" /> also ivy.xml contains: <dependency org="org.vaadin.addons&...