Ax Lookup Form

Reference： Class\sysLookupTable

1. 用临时表构造Lookup下拉结果，sysLookupTable有一个parmTmpBuffer方法，表明传入展示的结果集是临时表

系统中例子Form\AifLookupTable;

public void lookup()
{
    SysTableLookup tableLookup;
    Query                   query;
    QueryBuildDataSource    queryBuildDataSource;
    salesTable  salesTable ;
    tmpTable    tmp1;
    ;

        while select salesTable where createdDate == systemDateGet()  || CreatedBy == "XXX"
	{
	   tmp1.salesId = salestable.salesId;
           tmp1.RecCreatedBy = salesTable.CreatedBy;
           tmp1.insert();
	}
        query = new Query();
        queryBuildDataSource = query.addDataSource(tablenum(tmpTable));
        queryBuildDataSource.addSortField(fieldnum(tmpTable, SalesId));

        tableLookup = SysTableLookup::newParameters(tablenum(tmpTable), this);
        tableLookup.addLookupfield(fieldnum(tmpTable,SalesId));
	tableLookup.addLookupfield(fieldnum(tmpTable,RecCreatedBy));

        tableLookup.parmQuery(query);

        tableLookup.parmTmpBuffer( tmp1);//指明是临时表结果集

        tableLookup.performFormLookup();
}