function readOnly(count){ }
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<apex:page controller="sampleCon"> <apex:form > <apex:selectCheckboxes value="{!countries}"> <apex:selectOptions value="{!items}"/> </apex:selectCheckboxes><br/> <apex:commandButton value="Test" action="{!test}" rerender="out" status="status"/> </apex:form> <apex:outputPanel id="out"> <apex:actionstatus id="status" startText="testing..."> <apex:facet name="stop"> <apex:outputPanel > <p>You have selected:</p> <apex:dataList value="{!countries}" var="c">{!c}</apex:dataList> </apex:outputPanel> </apex:facet> </apex:actionstatus> </apex:outputPanel> </apex:page>
public class sampleCon { String[] countries = new String[]{}; public PageReference test() { return null; } public List<SelectOption> getItems() { List<SelectOption> options = new List<SelectOption>(); options.add(new SelectOption('US','US')); options.add(new SelectOption('CANADA','Canada')); options.add(new SelectOption('MEXICO','Mexico')); return options; } public String[] getCountries() { return countries; } public void setCountries(String[] countries) { this.countries = countries; } }
Go through the following link, I think it will be helpful for you.
https://hisrinu.wordpress.com/2011/05/30/custom-multi-select-picklist-field-in-visualforce/
https://developer.salesforce.com/blogs/developer-relations/2012/06/a-multiselect-picklist-visualforce-component.html
Try this code it will work
I think it will be helpful for you.