Filter controls on a form with user initiated filters

I added filters to the standard work order form in Dynamics AX. They are checkboxes for what status the user would like to filter. However, if a user filtered their own fields using the filtering grid (CTRL-G) and then they checked or unchecked a status box, their user filters would disappear and the form would reset using the checkbox filters.
Here is how I fixed this:

Set the initial ProdStatus filter using the usage data of the user for the original checkboxes that will be used. Do this in the init() method of the form after getting the usage data and setting the controls.

    xSysLastValue::getLast(this);
    StatusCreated.value(bStatusCreated);
    StatusCostEstimated.value(bStatusCostEstimated);
    StatusScheduled.value(bStatusScheduled);
    StatusReleased.value(bStatusReleased);
    StatusStartedUp.value(bStatusStartedUp);
    StatusReportedFinished.value(bStatusReportedFinished);
    StatusCompleted.value(bStatusCompleted);

For each status, add it to the status string field you are building:

    if (bStatusCreated)
    {
        if (!strLen(statusFilter))
        {
            statusFilter += int2str(enum2int(ProdStatus::Created));
        }
        else
        {
            statusFilter += ',' + int2str(enum2int(ProdStatus::Created));
        }
    } . . .

Then set your query range:
    qbrStatus            = this.query().dataSourceTable(tablenum(ProdTable)).addRange(fieldnum  
                                                                                                              (ProdTable, ProdStatus));
    if (strLen(statusFilter))
    {
        qbrStatus.status(RangeStatus::Hidden);
        qbrStatus.value(statusFilter);
    }
    else
    {
        qbrStatus.value(SysQuery::valueUnlimited());
    }

In the modified method of the checkbox status controls, retrieve the prodTable_ds.queryRun().query() and then modify it with your current status checkbox. Then call ProdTable_DS.research(). Calling executeQuery() again was what was resetting the form to the original query. Using research() will keep all the user filters the same.

    str                     statusFilter;
    Query                   queryProdTable;
    QueryBuildDatasource    qbdsProdTable;
    ;
    if (!ProdTable_DS.queryRun()) // just in case
    {
        return;
    }
    queryProdTable       = ProdTable_DS.queryRun().query();
    qbdsProdTable        = queryProdTable.dataSourceTable(tableNum(ProdTable));

Just like in the init() method, for each status, add it to the statusFilter string and then set your status. This new qbrStatus is using the the query from queryRun() though so it will maintain user filters. Calling research() on the datasource will run this filtered query on your form.

    qbrStatus = SysQuery::findOrCreateRange(qbdsProdTable, fieldNum(ProdTable, ProdStatus));
    qbrStatus.status(RangeStatus::Hidden);
    qbrStatus.value(statusFilter);

    ProdTable_DS.research();