CreateLookupFormDataSourceFieldD365FO.xpp

//Author Mafigu Huggins
//Tel: +263 782 326 160
//Email: mafiguhuggins@gmail.com


//In this file, there are two classes and two clicked() methods code. Please see the video or article to understand
//In this class, the methods are overriden

class Moeen_LookupFormMethodOverrides
{    
    protected void new()
    {
    }

    public static Moeen_LookupFormMethodOverrides construct()
    {
        //Returns the object of Moeen_LookupFormMethodOverrides class
        return new Moeen_LookupFormMethodOverrides();
    }

    public void PersonnelNumber_OnLookup(FormStringControl _callingControl)
    {
        //Creating lookup here
        //Lookup will show the PersonnelNumber from HcmWorker table.
        SysTableLookup sysTableLookup = SysTableLookup::newParameters(tableNum(HcmWorker), _callingControl);
        sysTableLookup.addLookupfield(fieldNum(HcmWorker, PersonnelNumber));
        sysTableLookup.performFormLookup();
    }

}


//In this class, event is handled and registration of method is done.
//Event handler class

class Moeen_LookupFormEventHandler
{
    //Go to the form -> data source -> YOUR DATA SOURCE -> Events -> OnInitialized
    //Right click the OnInitialized and Copy the event handler
    //Paste it Here
    [FormDataSourceEventHandler(formDataSourceStr(Moeen_LookupForm, Moeen_LookupTable), FormDataSourceEventType::Initialized)]
    public static void Moeen_LookupTable_OnInitialized(FormDataSource sender, FormDataSourceEventArgs e)
    {
        //Call the construct method of Moeen_LookupFormMethodOverrides class and get the object of it.
        //Stores the object in overrides variable
        var overrides = Moeen_LookupFormMethodOverrides::construct();
 
        //Registering to the methods in Moeen_LookupFormMethodOverrides
        //Passing the customized Moeen_LookupTable table and it's PersonnelNumber
        sender.object(fieldNum(Moeen_LookupTable, PersonnelNumber)).registerOverrideMethod(methodStr(FormDataObject, lookup),
            methodStr(Moeen_LookupFormMethodOverrides, PersonnelNumber_OnLookup), overrides);

    }

}


//Clicked methods logic

//Clicked method of OK Button
    //super();
    info(strFmt("%1", Moeen_LookupTable_PersonnelNumber.valueStr()));
    Moeen_LookupTable lookupTable;
    lookupTable.PersonnelNumber = Moeen_LookupTable_PersonnelNumber.valueStr();
    lookupTable.insert();
    element.close();

//Clicked method of Cancel Button
    //super();
    element.close();