How to Aviod the null values from Lookup() in AX2009

 Avoid Null values in Lookup (AX2009)

If you don't want to show Null Values in a lookup list

The below code avoid Null Values in Lookup.

Ex: Avoid Null values from lookup i.e If Qty is zero avoid those record in the lookup

public void lookup()

{

 Query query          = new Query();

 QueryBuildDataSource    queryBuildDataSource;

 QueryBuildRange                    queryBuildRange,queryBuildRange1;

// Create an instance of SysTableLookup where 'this'

// is the current form control.

SysTableLookup sysTableLookup = SysTableLookup

           ::newParameters(tableNum(ItemControl),this);

;

// Add fields to be shown in the lookup form.

        sysTableLookup.addLookupField(fieldNum(ItemControl, BatchNumber));

        sysTableLookup.addLookupField(fieldNum(ItemControl, ItemId));

        sysTableLookup.addLookupField(fieldNum(ItemControl, onhand));

// Limit and arrange the data selection.

queryBuildDataSource = query.addDataSource(tableNum(ItemControl));

queryBuildRange = queryBuildDataSource.addRange(

        fieldNum(ItemControl, ItemiD));

        queryBuildDataSource.addRange(fieldnum(ItemControl,ItemID)).value(ProdBOM.ItemId);

queryBuildRange = queryBuildDataSource.addRange(

        fieldNum(ItemControl, onHand));

 // To Avoid Null Values from ItemControl Table in  //lookup        

queryBuildDataSource.addRange(fieldnum(ItemControl,
Onhand)).value(SysQuery::valueNotEmptyString());

        queryBuildDataSource.addRange(fieldnum(ItemControl,
Onhand)).value('!=0.00');

sysTableLookup.parmQuery(query);

// Perform the lookup.

if(ProdBOM.ProdLineType == BOMType::Production)

{

            sysTableLookup.performFormLookup();

}

else

{

            super();

}

}

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Happy Daxing...