Visualforce Page:
Apex Class:
public with sharing class multiselectcls
{
Set<String> originalvalues = new Set<String>{'A','B','C','D','E','F','G'};
Public List<string> leftselected{get;set;}
Public List<string> rightselected{get;set;}
Set<string> leftvalues = new Set<string>();
Set<string> rightvalues = new Set<string>();
public multiselectcls()
{
leftselected = new List<String>();
rightselected = new List<String>();
leftvalues.addAll(originalValues);
}
public PageReference selectclick()
{
rightselected.clear();
for(String s : leftselected)
{
leftvalues.remove(s);
rightvalues.add(s);
}
return null;
}
public PageReference unselectclick()
{
leftselected.clear();
for(String s : rightselected)
{
rightvalues.remove(s);
leftvalues.add(s);
}
return null;
}
public List<SelectOption> getunSelectedValues()
{
List<SelectOption> options = new List<SelectOption>();
List<string> tempList = new List<String>();
tempList.addAll(leftvalues);
tempList.sort();
for(string s : tempList)
options.add(new SelectOption(s,s));
return options;
}
public List<SelectOption> getSelectedValues()
{
List<SelectOption> options1 = new List<SelectOption>();
List<string> tempList = new List<String>();
tempList.addAll(rightvalues);
tempList.sort();
for(String s : tempList)
options1.add(new SelectOption(s,s));
return options1;
}
}
<apex:page controller="multiselectcls">
<apex:form >
<apex:panelGrid columns="3" id="abcd">
<apex:selectList id="sel1" value="{!leftselected}" multiselect="true" style="width:100px" size="5">
<apex:selectOptions value="{!unselectedvalues}" />
</apex:selectList>
<apex:panelGroup >
<br/>
<apex:CommandButton value=" > " action="{!selectclick}"/> <br/>
<apex:CommandButton value=" < " action="{!unselectclick}"/>
</apex:panelGroup>
<apex:selectList id="sel2" value="{!rightselected}" multiselect="true" style="width:100px" size="5">
<apex:selectOptions value="{!SelectedValues}" />
</apex:selectList>
</apex:panelGrid>
</apex:form>
</apex:page>
<apex:form >
<apex:panelGrid columns="3" id="abcd">
<apex:selectList id="sel1" value="{!leftselected}" multiselect="true" style="width:100px" size="5">
<apex:selectOptions value="{!unselectedvalues}" />
</apex:selectList>
<apex:panelGroup >
<br/>
<apex:CommandButton value=" > " action="{!selectclick}"/> <br/>
<apex:CommandButton value=" < " action="{!unselectclick}"/>
</apex:panelGroup>
<apex:selectList id="sel2" value="{!rightselected}" multiselect="true" style="width:100px" size="5">
<apex:selectOptions value="{!SelectedValues}" />
</apex:selectList>
</apex:panelGrid>
</apex:form>
</apex:page>
public with sharing class multiselectcls
{
Set<String> originalvalues = new Set<String>{'A','B','C','D','E','F','G'};
Public List<string> leftselected{get;set;}
Public List<string> rightselected{get;set;}
Set<string> leftvalues = new Set<string>();
Set<string> rightvalues = new Set<string>();
public multiselectcls()
{
leftselected = new List<String>();
rightselected = new List<String>();
leftvalues.addAll(originalValues);
}
public PageReference selectclick()
{
rightselected.clear();
for(String s : leftselected)
{
leftvalues.remove(s);
rightvalues.add(s);
}
return null;
}
public PageReference unselectclick()
{
leftselected.clear();
for(String s : rightselected)
{
rightvalues.remove(s);
leftvalues.add(s);
}
return null;
}
public List<SelectOption> getunSelectedValues()
{
List<SelectOption> options = new List<SelectOption>();
List<string> tempList = new List<String>();
tempList.addAll(leftvalues);
tempList.sort();
for(string s : tempList)
options.add(new SelectOption(s,s));
return options;
}
public List<SelectOption> getSelectedValues()
{
List<SelectOption> options1 = new List<SelectOption>();
List<string> tempList = new List<String>();
tempList.addAll(rightvalues);
tempList.sort();
for(String s : tempList)
options1.add(new SelectOption(s,s));
return options1;
}
}
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