Retrieving ID of selected RadioButton

[Former Member]

Does anyone know how to retrieve the ID of the selected RadioButton in a RadioButtonGroup? When i find the selected RadioButton and do call getId() I get something weird, that references the group and a random letter set. If I do a getValueAsDataType().toString() I get "true."

How do you find the ID value for the selected RadioButton....that ID that you defined in the JSP?

Thanks!

[Former Member · Accepted solution]

Thanks, Praksh, but rb.getKey() gives me the <b>key</b> attribute value for the RadioButton. I am looking for the <b>id</b> attribute value for the RadioButton.

Do you know how to find this?

[Former Member · Accepted solution]

What about "getId()" is that not retrieving the id?

[Former Member · Accepted solution]

Hi Alexa,

getId() doesn't work. There is a bug with radio button controls. Use the work around i suggested above.

regards,

prakash

[MartyMcCormick · Accepted solution]

Hi Alexa,

According to the API documentation for the radioButton, the key attribute for a radioButton is:

key

A string which is assigned to the radioButton when the form is sent to the server. A key string must be defined and must not be empty.

id

Identification name of the radioButton.

Can you set key and id to the same value? If not, are you populating the id and key attributes from a bean array? If so, you could always get the radio button id by grabbing the key and then cross referenceing (i.e. keep id at position 0 and key at position 1 in your radio button setup array).

Hope this helps,

Marty

[Former Member]

I already knew how to find the key, and the key had to be a <i>different</i> value from that for which I was looking. I needed the key value, along with a corresponding text value, so I was looking to place this value in the ID. Marty's suggestion was to keep a 2-D array, and instead of setting the key to a value from the bean, set the key of the RadioButotn to the position in the array through which I was iterating. Then, in the Java code, I grabbed this array position (through rb.getKey()) which was stored as the key and got the actual key and ID values that I was trying to set from the 2-D array stored in the bean.

Since I am only able to retrieve the key value from a RadioButton, I could not store two unique values (as key and ID) in the RadioButton attributes. I instead had to refer back to the stored array from the bean, using the array position set as the key.

[Former Member]

Good suggestion...it worked! Thank you, Marty.

[Former Member]

What Marty suggested was exactly what Prakash suggested:

<hbj:radioButton
           id="Second"
           text="Test2"
           key="Second"
           jsObjectNeeded="true"/>

Note that the 'id' and 'key' values are identical.

[Former Member]

I think there is bug with htmlb control radio button group. I would recommend you to use <b>key</b<> and retrieve the key by doing the following.

<hbj:content id="myContext" >
  <hbj:page title="Template for a portal component">
   <hbj:form id="myFormId">
    <hbj:radioButtonGroup
               id="radioGroup"
               columnCount="2" >

               <hbj:radioButton
                       id="First"
                       text="Test1"
                       key="First"
                       jsObjectNeeded="true"
               />

               <hbj:radioButton
                       id="Second"
                       text="Test2"
                       key="Second"
                       jsObjectNeeded="true"
               />
    </hbj:radioButtonGroup>
    <br>
    <hbj:button 
					id="SubButton" 
					text="Submit" 
					tooltip="Sends your info" 
					onClick="onClick" 
					width="30px" 
					design="EMPHASIZED" 
					jsObjectNeeded="true">
				</hbj:button>
   </hbj:form>
  </hbj:page>
</hbj:content>

package com.ust.radio;

import com.sapportals.htmlb.RadioButton;
import com.sapportals.htmlb.RadioButtonGroup;
import com.sapportals.htmlb.event.Event;
import com.sapportals.htmlb.page.DynPage;
import com.sapportals.htmlb.page.PageException;
import com.sapportals.portal.htmlb.page.JSPDynPage;
import com.sapportals.portal.htmlb.page.PageProcessorComponent;
import com.sapportals.portal.prt.component.IPortalComponentResponse;


public class display extends PageProcessorComponent {

	public DynPage getPage() {
		return new MyDynPage();
	}

	// JSPDynPage
	public class MyDynPage extends JSPDynPage {
		

		/*
		Used for user initialization. called when the application is started
		*/
		public void doInitialization() {
			
		}


		/*
		Used for handling the input. Generally called each time
		after doInitialization
		*/
		public void doProcessAfterInput() throws PageException {
			RadioButtonGroup rg =  (RadioButtonGroup) this.getComponentByName("radioGroup");
			RadioButton rb = (RadioButton) rg.getRadioButtonForKey(rg.getSelection());
			IPortalComponentResponse response = (IPortalComponentResponse) this.getResponse();
			response.write(rb.getKey());
 
		}

		/*
		Used for handling the output. This method is always called.
		*/
		public void doProcessBeforeOutput() throws PageException {
			// set the name of your JSP page
			setJspName("display.jsp");
		}

	
		
	}
}