add checkbox item inside Listbox gwt - java

How can we add Checkbox item inside Listbox or there is a checkboxlist i did not see ?
i want to get a list of checkboxes that i will after filter a list of appointments by checking those checkboxes
GWT 2.2 , java , eclipse

You can't add widgets like a CheckBox to a ListBox, nor is there a CheckBoxList, but you can use a CellList with a CompositeCell (TextCell + CheckboxCell) and it'll do what you want.

I don't think you can add checkboxes within the Listboxe.
You can probably create a List box with multiple selection enabled.
ListBox list = new ListBox();
list.setVisibleItemCount(10);
list.setMultipleSelect(true);

Here is something using GXT's XTemplate (if you want only GWT then use Template).
Other than that, how you pass your data is something you can define, but if you go with GXTs ModelData then this could work.
https://gist.github.com/Aadi1/4949994

Related

JavaFX Controlsfx library Check-ComboBox autocomplete

I have check-combo box I have taken it from controlsFX library which has more than 80 items in it. How can I write check-Combobox autocomplete logic? As while selecting items from CheckComboBox I need to scroll down and search item manually. I want a search option for it.
The check-combobox control is not editable and as such you cannot make it auto complete. Use combobox and set the cellFactory, extend ListCell and add checkbox

Strange Vaadin Combo box behaviour

I have the following UI in my Vaadin app. 1. A USER combo box linked to a users container and 2. a UI table with a list of STUDENTS linked to a students container.
I am periodically refreshing the students container every 10 seconds. However on refresh of the students container, if i have the combo box list selected the items are grayed out and then i have to re-select the combo.
The como list is ok until the refresh, thereafter all the elements are gray.
I dont think this is normal behavior? Any ideas on to how to resolve this?
you can put all your elements from SQLContainer to an indexed container and set that as a source to comboBox, alternatively , you can add the values of desired property of SQLContainer to an arrayList and get items from arrayList to add to combo list

Wicket, how to lazy-load DropDown choices on click?

I have a lot of DropDownChoice components with many items in a form, and on loading the form, I'd like to display only the saved selected options. When the user clicks on a DropDownChoice, I'd like to ajax-load the full item list on the fly.
Can this be done?
Add a OnChangeAjaxBehavior to your dropdown-component. Override the onUpdate-method and add another component to the target. The chosen value of the dropdown-component is inside its model.
Update: Okey, I think I know what you're trying to achieve. Add an AjaxFormComponentUpdatingBehavior to your dropdown component with "onclick" as constructor parameter.
Override the onUpdate-method and add your dropdown component to the target. Before you do that, update the dropdown model, so that it now contains all values.
If you have a lot of options to show then using <select> is not the best option.
Better check http://ivaynberg.github.com/select2/ or http://livedocs.dojotoolkit.org/dijit/form/FilteringSelect or any other JS based component which can load options on demand via Ajax.
Maybe you could go with the AjaxEditableLabels... Using the AjaxEditableChoiceLabel from Wicket Extensions, you'll get a compponent that displays the current value as a Label until clicked and the changes to a DropDownChoice via Ajax. That should be pretty much like the solution you're looking for.

Represent a List of strings in GWT as widget in an editor

I'm building a GWT app.
I want to associate a list of items (List < String >) to an editor.
Is there any built in widgets that support editing list of items?
Something that will show comma separated values and will know how to render them back to the proxy.
You can use the CellList widget to display a list of items. If you want to present them horizontal add float:left as style to the individual items in the Celllist style items: cellListEvenItem and cellListOddItem.
Yes, take a look at CellTable.
You can implement your custom class for CellList and/or CellTable adapting for your needs. All components from gwt extends Widget, and can be extended too.
Ended up with this Facebook auto complete style
http://raibledesigns.com/rd/entry/creating_a_facebook_style_autocomplete
And demo http://demo.raibledesigns.com/gwt-autocomplete/

Creating a multiple column combobox in Java

I need to create a ComboBox in Java that will have information in a column on the left and a Checkbox in a column on the right so that a user can select multiple items in the ComboBox. This needs to be a ComboBox because there could be 100 items in the list that may need to be checked but they cannot take up much space on the user interface.
Does anyone know how to do this?
Using a JList inside a JScrollPane seems more appropriate for dealing with that many items. It supports the standard CTRL-click to select multiple items.
A multi-selection combobox with 100 items sounds like a UI nightmare.

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