Creating an unbound enum like ALL,OPEN,POSTED in a form, and how to do filteration


Creating an unbound enum like ALL,OPEN,POSTED in a form, and how to do filteration:

 Add unbounded comboBox - Provide property enumtype as AllOpenPosted.

 In form ->

public class FormRun extends ObjectRun
{
    QueryBuildRange     criteriaPosted;
    AllOpenPosted       allOpenPostedValue;
    NoYes               openLinesForm;
    boolean             allowCreate;
}

void bookReSearch()
{
    INC_Pricecontract_ds.research();
}

public void init()
{
    allowCreate = true;
    super();
    allOpenPostedValue = AllOpenPosted::Open;
    INC_Pricecontract_ds.allowCreate(allowCreate);

    allOpenPosted.selection(allOpenPostedValue);
    allOpenPosted.selectionChanged();
}

In Form->Datasource->

public void init()
{
    super();
    criteriaPosted      = INC_Pricecontract_ds.query().dataSourceTable(tablenum(INC_Pricecontract)).addRange(fieldnum(INC_Pricecontract,Posted));
}

int active()
{
    int ret;

    ret = super();

    INC_Pricecontract_ds.allowEdit(!INC_Pricecontract.Posted);

    // + My Comment (Added by incadmin - INC-vinod - Start 16/10/2018)
    if(INC_Pricecontract.INC_DeliveryType   ==  INC_DeliveryType::Delivery && Grid_INC_LocationId.valueStr() == "")
    {
        Grid_INC_LocationId.mandatory(true);
    }
    else
    {
        Grid_INC_LocationId.mandatory(false);
    }
    // - My Comment -INC-Vinod - End
    element.updateLinesButton();
    return ret;
}

public void create(boolean _append = false)
{
    if (allOpenPosted.selection() == AllOpenPosted::Posted)
        return;

    super(_append);
}

In Form-> Design-> Unbounded ComboBox ->

public boolean modified()
{
    boolean ret;

    ret = super();

    this.selectionChanged();
    INC_Pricecontract_ds.executeQuery();

    return ret;
}

int selectionChange()
{
    int ret;

    ret = super();

    this.selectionChanged();
    INC_Pricecontract_ds.executeQuery();

    return ret;

}

/// <summary>
/// Updates criteria query range and sets create permission for data source.
/// </summary>
public void selectionChanged()
{
    switch (allOpenPosted.selection())
    {
        case AllOpenPosted::All :
            criteriaPosted.value('');
            break;
        case AllOpenPosted::Open:
            criteriaPosted.value(queryValue(NoYes::No));
            break;
        case AllOpenPosted::Posted  :
            criteriaPosted.value(queryValue(NoYes::Yes));
            break;
    }

    INC_Pricecontract_ds.allowCreate(allowCreate && allOpenPosted.selection() != AllOpenPosted::Posted);
}

In Form->Actionpane->Line menuitembutton -> Clicked()

void clicked()
{
    if (!INC_Pricecontract.RecId)
    {
        INC_Pricecontract_ds.write();
    }

    super();
}

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