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com.vaadin.flow.component.formlayout.
Package com.vaadin.flow.component.formlayout

Class FormLayout

java.lang.Object
com.vaadin.flow.component.Component
com.vaadin.flow.component.formlayout.FormLayout

All Implemented Interfaces:

AttachNotifier, ClickNotifier<FormLayout>, DetachNotifier, HasComponents, HasElement, HasEnabled, HasSize, HasStyle, Serializable

@Tag("vaadin-form-layout") @NpmPackage(value="@vaadin/polymer-legacy-adapter",version="24.7.1") @NpmPackage(value="@vaadin/form-layout",version="24.7.1") @JsModule("@vaadin/polymer-legacy-adapter/style-modules.js") @JsModule("@vaadin/form-layout/src/vaadin-form-layout.js") public class FormLayout extends Component implements HasSize, HasStyle, HasComponents, ClickNotifier<FormLayout>

Form Layout allows you to build responsive forms with multiple columns and to position input labels on top or to the side of the input. Form Layout has two columns by default meaning it displays two input fields per line. When the layout width is smaller it adjusts to a single column layout.

You can define how many columns Form Layout should use based on the screen width. A single column layout is preferable to a multi column one. A multi column layout is more prone to cause confusion and to be misinterpreted by the user. However, closely related fields can be placed in line without issue. For example, first and last name, address fields such as postal code and city, as well as ranged input for dates, time, currency, etc.

Best Practices:
Longer forms should be split into smaller, more manageable and user-friendly sections using subheadings, Tabs, Details or separate views when possible. Each section should consist of related content and/or fields.

Also, use the following guidelines for Button placement in forms:

  • Buttons should be placed below the form they?re associated with.
  • Buttons should be aligned left.
  • Primary action first, followed by other actions, in order of importance.

Author:

Vaadin Ltd

See Also:

  • Constructor Details

  • Method Details

    • setColspan

      public void setColspan(Component component, int colspan)

      Sets the colspan of the given component's element. Will default to 1 if an integer lower than 1 is supplied. You can directly add components with the wanted colspan with add(Component, int).

      Parameters:

      component - the component to set the colspan for, not null

      colspan - the desired colspan for the component

    • add

      public void add(Component component, int colspan)

      Adds a component with the desired colspan. This method is a shorthand for calling HasComponents.add(Component...) and setColspan(Component, int)

      Parameters:

      component - the component to add

      colspan - the desired colspan for the component

    • getColspan

      public int getColspan(Component component)

      Gets the colspan of the given component. If none is set, returns 1.

      Parameters:

      component - the component whose colspan is retrieved

      Returns:

      the colspan of the given component or 1 if none is set

    • getResponsiveSteps

      public List<FormLayout.ResponsiveStep> getResponsiveSteps()

      Get the list of FormLayout.ResponsiveSteps used to configure this layout.

      Returns:

      the list of FormLayout.ResponsiveSteps used to configure this layout

      See Also:

    • setResponsiveSteps

      public void setResponsiveSteps(List<FormLayout.ResponsiveStep> steps)

      Configure the responsive steps used in this layout.

      Parameters:

      steps - list of FormLayout.ResponsiveSteps to set

      See Also:

    • setResponsiveSteps

      public void setResponsiveSteps(FormLayout.ResponsiveStep... steps)

      Configure the responsive steps used in this layout.

      Parameters:

      steps - the FormLayout.ResponsiveSteps to set

      See Also:

    • addFormItem

      public FormLayout.FormItem addFormItem(Component field, String label)

      Convenience method for creating and adding a new FormItem to this layout that wraps the given field with a label. Shorthand for addFormItem(field, new Label(label)).

      Parameters:

      field - the field component to wrap

      label - the label text to set

      Returns:

      the created form item

      See Also:

    • addFormItem

      public FormLayout.FormItem addFormItem(Component field, Component label)

      Convenience method for creating and adding a new FormItem to this layout that wraps the given field with a component as its label.

      Parameters:

      field - the field component to wrap

      label - the label component to set

      Returns:

      the created form item

    • setLabelWidth

      public void setLabelWidth(String width)

      Set the width of side-positioned label.

      Parameters:

      width - the value and CSS unit as a string

      See Also:

    • getLabelWidth

      public String getLabelWidth()

      Get the width of side-positioned label.

      Returns:

      the value and CSS unit as a string

      See Also:

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