Package hudson.util

Class ListBoxModel

java.lang.Object
java.util.AbstractCollection<E>
java.util.AbstractList<E>
java.util.ArrayList<ListBoxModel.Option>
hudson.util.ListBoxModel
All Implemented Interfaces:
Serializable, Cloneable, Iterable<ListBoxModel.Option>, Collection<ListBoxModel.Option>, List<ListBoxModel.Option>, RandomAccess, org.kohsuke.stapler.HttpResponse
@ExportedBean public class ListBoxModel extends ArrayList<ListBoxModel.Option> implements org.kohsuke.stapler.HttpResponse
Model object of dynamically filled list box.

Usage

The dynamic list box support allows the SELECT element to change its options dynamically by using the values given by the server.

To use this, HTML needs to declare the SELECT element: 

<xmp>
 <select id='foo'>
   <option>Fetching values...</option>
 </select>
 </xmp>

The SELECT element may have initial option values (in fact in most cases having initial values are desirable to avoid the client from submitting the form before the AJAX call updates the SELECT element.) It should also have an ID (although if you can get to the DOM element by other means, that's fine, too.)

Other parts of the HTML can initiate the SELECT element update by using the "updateListBox" function, defined in hudson-behavior.js. The following example does it when the value of the textbox changes: 

<xmp>
 <input type="textbox" onchange="updateListBox('list','optionValues?value='+encode(this.value))"/>
 </xmp>

The first argument is the SELECT element or the ID of it (see Prototype.js $(...) function.) The second argument is the URL that returns the options list.

The URL usually maps to the doXXX method on the server, which uses ListBoxModel for producing option values. See the following example: 

 public ListBoxModel doOptionValues(@QueryParameter("value") String value) throws IOException, ServletException {
   ListBoxModel m = new ListBoxModel();
   for (int i=0; i<5; i++)
     m.add(value+i,value+i);
   // make the third option selected initially
   m.get(3).selected = true;
   return m;
 }
Since:
1.123
Author:
Kohsuke Kawaguchi
See Also:

  • Constructor Details

  • Method Details

    • add

      public void add(@NonNull String displayName, @NonNull String value)

    • add

      public void add(ModelObject usedForDisplayName, @NonNull String value)

    • add

      public ListBoxModel add(@NonNull String nameAndValue)
      A version of the add(String, String) method where the display name and the value are the same.

    • writeTo

      public void writeTo(org.kohsuke.stapler.StaplerRequest2 req, org.kohsuke.stapler.StaplerResponse2 rsp) throws IOException, jakarta.servlet.ServletException
      Throws:
      IOException
      jakarta.servlet.ServletException
      Since:
      2.475

    • writeTo

      @Deprecated public void writeTo(org.kohsuke.stapler.StaplerRequest req, org.kohsuke.stapler.StaplerResponse rsp) throws IOException, javax.servlet.ServletException
      Deprecated.
      use writeTo(StaplerRequest2, StaplerResponse2)
      Throws:
      IOException
      javax.servlet.ServletException

    • generateResponse

      public void generateResponse(org.kohsuke.stapler.StaplerRequest2 req, org.kohsuke.stapler.StaplerResponse2 rsp, Object node) throws IOException, jakarta.servlet.ServletException
      Specified by:
      generateResponse in interface org.kohsuke.stapler.HttpResponse
      Throws:
      IOException
      jakarta.servlet.ServletException

    • values

      @Exported @Deprecated public ListBoxModel.Option[] values()
      Deprecated.
      Exposed for stapler. Not meant for programmatic consumption.