I have created a web page which consist of text boxes and check boxes. The collaboration between the text boxes are working fine but there is no check boxes collaboration. How to do coding for the check boxes so that the collaboration can happen? An example will help greatly. Please advise...thanks.
You need to store the state of the checkbox somewhere in the data model, probably as a boolean. You update the value when the user checks the checkbox, and listen for change events to find out when a collaborator changed it and then update the checkbox yourself.
Related
I am building an ExtJS4 Web Application and there's a part where the user is shown a "Search Panel". It's basically a floating panel with textfields and a gridView. The textfields allow the user to put his or her input for first name and last name filters. There's also a combo box that the user can use to filter the search. The results are shown in the gridView. The search functionality works well.
However, when the floating panel is hidden and then shown, the fields are reset and the user would have to enter the input once more.
What I want to happen is for the textfield and combobox values to persist even though the panel is hidden then shown again. I have tried using setVisibility(false) then using setVisibility(true) but that did not work for me.
How can I persist values of fields when their parent view is hidden/shown?
The fields should have retained the value as you are just hiding and showing the search panel. It seems there is a bug in your program, but I cannot ascertain that without seeing some code. Assuming that your search panel includes a close button, I would suggest you to use closeAction: 'hide' on the panel instead of using setVisibility(). Also make sure that you are not creating multiple instances of search panel, use a single object of search panel.
Here is a quick fiddle http://jsfiddle.net/DirtyParadoxx/gL9aekzz/
If you want to use cookies, then as Nikolay Lopin suggested, stateful: true would be a nice way of doing it.
I got a ComboBox in Vaadin and want to reload (from db) the set of entries in the dropdown list while typing in the text field of the ComboBox. I always got the exception:
java.lang.IllegalStateException: A connector should not be marked as dirty while a response is being written.
I tried to lock the session (getUI().getSession().getLockInstance().lock();), but it didn't help.
Is it possible to dynamically set/load the selection list of a ComboBox?
Cheers
Stefan
why do you want to change the content from DB as the user type? you'll get a postback and a query every key the user presses... isn't better to use the standard combo feature (which tries to autocomplete the value given what the user is typing)?
Anyway, if you really need this feature, you may extend the standard behaviour of combo extending the container behind the combo, as the data shown is taken from a container.
This may be a simple quesiton but I need to ask to be sure I am in the correct direction. In the Item Fulfillment form for example, there is a first column Fulfill that is a checkbox. Above it there are buttons for Mark All and Unmark All as well. What I would like to do is have similar functionality on one of my other subtabs. I already have a custom child record that lives on my subtab and added a checkbox bool field to the record. I could get that to somewhat work but what I would like to know is
1- is that the correct approach.
2- does it need to be a field that is selected to be saved,
3- for their functionality this only appears in Edit mode. is that a limitation?
4- I notice their "checkbox field" is not as wide as the one I made
5- Is there a way that I would only get this "field" to appear in the record when it is in a sublist and not when it is in its own custom form to create a new item? I would only have it as a checkbox in a subtab.
Or is my approach wrong and perhaps there is an easier way to do it?
Thanks
1 - You can create a check box using inline HTML field - script the check box that way. Call a client script's function to handle the click.
2 - Not really sure what you're talking about - if you mean "Store Value" in the field definition, the answer is "No".
3 - Edit mode, yes. You can't change values of a field when not in edit mode.
4 - Width of a field can be controlled on the form design.
5 - Create 2 different forms. The data entry form would not include the check box, the sublist form would.
We are building a larger Qooxdoo application, and we have the following problem.
We try to bind a SelectBox (qx.ui.form.SelectBox) with a remote model to a form controller (qx.ui.form.Form) with property binding.
The form controller has also a remote model.
The form and the list are connected over a list controller (qx.data.controller.List).
The problem now are race conditions between this two models.
Both models are connected to a REST interface.
Is there a solution like a virtual selectbox, or a alternative?
UPDATE:
The main problem is the default selection of the select box when editing data in the form.
The user clicks on a button and the form gets opened in a new window. The form contents will be loaded via REST. In the form there is a select box containing all countries of the world (as example) loaded via REST, and Germany should be selected as default. This default selection is only possible, if all counties are already loaded via REST. Otherwise the first element in the list is selected.
Here is some example source code, it's not working, but is a good starting point: http://tinyurl.com/oqsfkrc
Virtual select box does not help you much because it's only virtual when it comes to rendering. So the data binding and the race conditions should be the same no matter which select box you choose.
I don't get the root of your problem so I can't give you a precise advice how to handle your race condition. Is it possible to load / set the models sequentially to break the race condition?
I have to make a form codename-one in which i have a check box. if check box is checked then bellow it i want to display 2 combo box and if check box is unchecked then i want to display 2 text field.
How can i do it.
I have tried setVisible(true/false) but in it space consumed by label or text field is never covered up.
Please help.
You need to remove/add the components and then invoke either revalidate() or animateLayout(int) to refresh the UI.