Client code: Finding which radio button is checked - dom

In Javascript code on the browser, given the name of a group of radio buttons, is there a way to directly find out which button is checked without iterating through each button one by one to check its checked property?

Yes with jQuery. If the name of the group is state, then:
$("[name=state]:checked").val()

Related

How to change the Form according to the item selected in the drop Down menu in Flutter

I have created I method which is showing a dialog and I called it with timer.run() method in order to show the dialog at the start of the screen automatically in which i have created a form (the code snippet is attached in the photos) and the form contains drop-down menu with two items(check and bank) now i want to make the UI as dynamic whenever the user selects the Bank option in the drop-down menu a new drop-down menu is displayed to him otherwise an empty container will be displayed to him.
Solutions I tried
created i variable which holds true if the item selected is bank otherwise false and used it as a condition to either show the 2nd drop-down or not.
Make the variable global but it also didn't worked.
created a function which i called with the variable to return either drop-down or empty container but it also didn't worked.
Created the bank selected variable in other class and access it with provider package but it also didn't worked for me.
The source code is also available at Github-Repo
Thanks all someone at linkedin helped me with the solution. which is
We have to wrap the AlertDialog with StatefulBuilder and have to call setState when option is selected then it will work.

How to create a form allowing multiple checkbox selection in Wix?

Does anyone know if there's a possibility to create a form where users can select multiple checkbox options instead of just one? I need users to be able to check multiple boxes. Any help for a newbie would be greatly appreciated.
I know I'm late, but if you're using Wix Forms, you can click on the form, click the plus sign, then click "Selection" in the left column, then click "Multi Checkbox Field" to get checkboxes where users can select more than one. Right now you're probably using Radio Buttons, which are often used as the default in most form templates but only allow for one box to be selected.

spring mvc remember selected option in drop down

I have a spring mvc form with a drop down and radio button.
I want to redisplay the form for confirmation and the drop down and radio buttons are not retaining the selections in the command object.
The drop down displays all the contents from the list but doesnt show the selected option from the command as 1st option.
Appreciate your help.
use the spring forms tags and set the path attribute to the name of the variable in which you are storing the radio and drop-down selections.
Make sure that you are using form:radiobutton and not form:input type="radio".

Accessing forms created through LWUIT resource editor using code

I am trying to develop a quiz application using LWUIT resource editor and am having great difficulty.
I have created two Forms 'GUI1' and 'GUI2' .
GUI1 displays the following:
A question(in the form of a TextField)
5 RadioButtons belonging to the same group
A Button which says 'OK'
GUI2 displays the following:
A TextField
A Button to go back to GUI1
Now the problem is:
Initially GUI1 is displayed. When the user chooses a RadioButton , I wish to know which RadioButton was selected. If that RadioButton was indeed the correct answer, then when the user clicks on the 'OK' Button on GUI1, I wish to display the text 'correct' in the TextField on GUI2 and then display the GUI2.
If the user chose the wrong answer, then I wish to display the text "Wrong" in the TextField on GUI2 and then display the GUI2.
How can this be done with resource editor? I am very foxed. Please help.
I wish to refer to the TextField on GUI2 when I am currently on GUI1. How can this be done with resource editor? Writing a manual code for all this would be very time consuming.
Ok I will try to explain the best I can.
When you design the first Form GUI1 the five RadioButtons must be in the same group. I don't know how to do that in the resource editor (I think there is a field called ButtonGroup in the RadioButton, but I can't remeber). What I would do is take the five RadioButton by code in the before method of GUI1 and add them to a ButtonGroup element.
With ButtonGroup you can know which element is selected using ButtonGroup.setSelectedIndex(). When you press the Button take this value and act as appropriate to the situation.
If you don't understand anything please tell me and I will try to help you.
Is not a hard thing to do. There must be a way to do it with the Resoruce editor but at the moment I donĀ“t know how.
As Shai mentioned, the best thing to do is to use listeners to set the "state" of the buttons on clicking them and when you move to the next form you just retrieve the state of the previous text field.
Manual code may actually be faster for you, do most of the UI in the resource editor and transfer to a form that is written manually. That way you have full control over your objects and transfer back into the GUI builder form when needed.

Programatically change icon for a eclipse RCP command

I have a menu drop down action in the coolbar. It has 3 sub items that form a radio group. I would like to change the icon shown in the coolbar when the user selects one of these options.
I've googled and seen that I should look at:
org.eclipse.ui.commands.ICommandService.refreshElements(String, Map)
and
org.eclipse.ui.commands.IElementUpdater
Its probably the right thing to look at exception its not enough information. One or two small code snippets will be excellent.
Thanks in advance.
Ok basically if you don't want to use a "custom" control the what to do it is to have your handler (handler that is linked to the specific command) implement IElementUpdater. When every the toolbar item gets shown or clicked on (i.e if the user selects on the the radio buttons) the method: updateElement(UIElement element, Map parameters) gets called.
The element has a setIcon() method and this is what i used to change the icon of the menu drop down action.
Every update to the Coolbar points to the specialization of the WorkbenchWindowControlContribution class.
This bug 186800 has some code example in it which can be of interest.