long strings inside list Select component

Hi, i’m doing an application where a listSelect component is filled with strings. The problem is some of this strings are longer than the width of the component, so I can´t see the whole string inside it. I looked for a horizontal scrollbar but it seems like such thing is not supported for this component. Is there another way to see all the string’s content in listSelect? Any help would be appreciated. Thanks in advance. :smiley:

I just tested it (I am new to Vaadin, it was an opportunity to try out this component) and the list widened to the size of the longest string.
Do you limit the width in some way?

Yes, I set its Width as 100%, my listSelect is inside a GridLayout, and there are other components around it. ListSelect takes the whole width of its current grid, I know I could set a more Width for the grid, but then my other components would be shown incomplete on the screen

I could reproduce that, indeed.
I saw that ListSelect, at least in its simplest form, is translated into a good old tag with s inside.
So, searching a Web dev. solution, I saw a good one is to add title attributes to each option, equals to the option text, allowing the browser to display the whole string inside a tooltip.
I am searching if Vaadin allows to add such title on each ListSelect item…

The problem is the ListSelect itself, When you use setWidth() to set the size of your object it sets the widths for both v-select and v-select-select to the same value causing it to not have to scroll within the browser. My solution is to use a custom stye to set the value for ListBox to allow seperate size assignment for v-select and v-select-select and to also automatic scroll the list by adding ‘overflow : auto;’

Here is the working code:

package com.example.listtest;
import javax.servlet.annotation.WebServlet;
import com.vaadin.annotations.Theme;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.server.Page;
import com.vaadin.server.Page.Styles;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Label;
import com.vaadin.ui.ListSelect;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
@SuppressWarnings(“serial”)
@Theme(“listtest”)
public class ListtestUI extends UI {
@WebServlet(value = “/*”, asyncSupported = true)
@VaadinServletConfiguration(productionMode = false, ui = ListtestUI.class)
public static class Servlet extends VaadinServlet {
}
@Override
protected void init(VaadinRequest request) {
final VerticalLayout layout = new VerticalLayout();
layout.setMargin(true);
setContent(layout);
Button button = new Button(“Click Me”);
button.addClickListener(new Button.ClickListener() {
public void buttonClick(ClickEvent event) {
layout.addComponent(new Label(“Thank you for clicking”));
}
});

ListSelect select = new ListSelect("My Selection");
    
     // Add some items
     select.addItem("Mercury sdfdsf sdfsdfsf sdfsf sdfdsfs sdfsdf sdfsdf");
     select.addItem("Venus");
     select.addItem("Earth");
     select.addItem("Mars");
     select.addItem("Jupiter");
     select.addItem("Saturn");
     select.addItem("Neptune");
     select.addItem("Uranus");
     select.setWidth(null);
     select.addStyleName("mystyle");

    //inject your style here or add them to the .css for your them
    Styles styles = Page.getCurrent().getStyles();
    styles.add(".mystyle{  width: 200px !important;} ");
     select.setNullSelectionAllowed(false);
     layout.addComponent(select);

layout.addComponent(button);
}
}

// add style for v-select and v-select-select
@import “…/valo/valo.scss”;
@mixin listtest {
@include valo;

.v-select { overflow:auto; }
select.v-select-select {overflow:auto; width: 1111; }
.mystyle{width: 200px !important;}

}