how to select second value of multi select lookup in x++

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Posted on by Laraib

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I have created multi select lookup but when I am using MultiSelectControl.valueStr() in my code it is returning first column value whereas i Want last two column value of multi select lookup

HERE IS THE LOOKUP SNAPSHOT

I Want to add last value of multi select lookup here below:

public void lookup()
{
    Query query = new Query();
    QueryBuildDataSource queryBuildDataSource;
    QueryBuildRange queryBuildRange;
    SysTableLookup sysTableLookup;

    str   Itemsubtypeforlockup = RNI_Type.valueStr();
    //if(Itemsubtypeforlockup)
    //{
        queryBuildDataSource = query.addDataSource(tableNum(SL_ITEMCATMODELNUMBER));
        queryBuildDataSource.addRange(fieldNum(SL_ITEMCATMODELNUMBER,DESCRIPTION)).value(HERE I WANT TO INSERT 2ND LAST COLOUMN VALUE OF MULTI SELECT LOOKUP DEFINE ABOVE);
        msCtrl = SysLookupMultiSelectCtrl::constructWithQuery(this.formRun(),this,query);
    //}
}