Multiselect for Dynamic dropdown

I have a requirement for selecting multiple values in a dynamic dropdown field. The values in dynamic dropdown are populating from an activity call. Please suggest how to do that.

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June 24, 2011 - 10:29am

Use a value list property & MultiSelectList HTML Property.

December 21, 2011 - 5:27pm


I followed the same steps as mentioned above,still i am ending with the below error at runtime:

Message: 'null' is null or not an object

Could someone please suggest if any changes required.

June 25, 2011 - 9:27am

But I am using DynamicSelect HTML for the property. How MultiSelect will work with that?

June 25, 2011 - 10:58am

DynamicSelect & MultiSelectList are different things. You can't have both at the same time.


Originally posted by DASA0004

But I am using DynamicSelect HTML for the property. How MultiSelect will work with that?

December 22, 2011 - 7:59am

For choosing multiple values from list,I guess 'List-to-List' will be more appropriate way of handling than 'multiselect dynamic select'. please let me know if any suggestions.

December 22, 2011 - 12:30pm


Users are more inclined to have this as a dropdown and so trying to use Multiselect.


December 9, 2011 - 7:00am


As you suggested to achieve multiselect functionality,I have taken a value list property and given html property as "MultiSelectList".I am getting Unhandled exception executing JSP: Unhandled exception executing JSP: null .

What might be the problem ?
Kindly suggest me how to get it done?

Shiva Prasad

December 12, 2011 - 12:37am

While saving the rule form where the value list property is referred, use index (Ex:Test(1)) and try.

December 12, 2011 - 2:18am


Now the rule form is saving correctly but am unable to get the values.


December 12, 2011 - 6:48am

Mention the required property name and classname as parameters for MultiselectList html/control.

December 12, 2011 - 7:18am

Create Filed values for the Property.
MultiSelectList html property has used in the OOTB Section SECTION also .
For more information see the OOTB section PegaAccel-Task-CircumstanceSearch •FindByCircumstance_Circumstances

December 12, 2011 - 7:44am


It helped me alot.

December 12, 2011 - 8:15am

Hi I am getting the values and it is working fine.It was included the value none as well in the list.Can you please suggest me to remove the none from the list?

The problem is it is allowing me to choose none as well.


December 13, 2011 - 12:20am


Save as OOTB MultiSelectList hmtl property with different name and remove <OPTION value="" <%=noSelection%> >(none)</OPTION>..

December 13, 2011 - 6:30am

Thanks swamy and sricharan.

It worked.

January 23, 2012 - 11:26am

on furthur observation, we noticed that we get this js error "Message: 'null' is null or not an object" when we do any on-change/on-click events on the screen having multiselect control.
anyone having any idea on this pls do help.


June 29, 2016 - 11:11am
Response to SRICHARANK

Hi Need one help.


i followed your steps but i am getting below erros.Could you please assist me on this?

Property reference .CountryName(1) is invalid, as property .CountryName(1) is not defined in class ATNA-BANK-WORK

May 30, 2014 - 1:06am

  1. How can we change the Width of the Multiselect List box ?

May 30, 2014 - 1:10am


September 29, 2016 - 5:39pm

please follow below steps to display Multi select dropdown

1. create a property a type = "ValueList " and add a prompt list to the property ,enter values to display .

2. include created properly in section & select Cell properties as "MultiSelectList".

  2.1) In General  tab,.select  a property as ".ValueListProperty(1)" .

 2.2) On parameters tab, enter the valuelist property  and class name of the property . if you want enter the size then user size parameter