D365FO - Extension method data accessor examples

Referenc: https://axcalated.blogspot.com/2018/08/d365fo-extension-method-data-accessor.html
Name: Adam Chronister 

Source	Event	Parm	Example
Class	Pre/Post event	XppPrePostArgs	Get args and parmameter values from a method that is being extended. Parm 1 = Object Parm 2 = Common PurchCreateFromSalesOrder callingClass = args.getThis() as PurchCreateFromSalesOrder;       Object callerObject = args.getArgNum(1) as Object; Common callerRecord = args.getArgNum(2) as Common;
Class	Pre/Post event	XppPrePostArgs	Class example: SalesLineType salesLineType = args.getThis() as SalesLineType;
Class	main	args	Getting the caller record that is sent to a class via args. This is the same as 2012 however args.record().datasource() is now deprecated //check the caller if(_args.callerName() == formStr(SalesTable)) {         //check to see which dataset type was passed         if(_args.dataset() == tableNum(SalesLine))         {                 //get the forms datasource record (FormDataUtil::getFormDataSource() replaced _args.record().datasource())                FormDataSource salesLineDS = FormDataUtil::getFormDataSource(_args.record());         } }
Form	Initialized	xFormRun	FormDataSource purchLine = sender.dataSource(formDataSourceStr([formname],[table]));
Form	DataSource	FormDataSource	FormDataSource formDS = sender.formRun().dataSource(formDataSourceStr(EcoResProductDetailsExtended, MHSmartATPItemSettings)); MHSmartATPItemSettings smartATPItemSettings = formDS.cursor();
Form	DataSource Field	FormDataObject	FormDataSource formDS = sender.datasource(); PurchLine purchLine = formDS.cursor();
Form	Form Control	FormControl	FormRun formRun; FormControl formControl; formRun = sender.formRun(); formControl = FormRun.design().controlName(formControlStr(<form name>, <control name>)); someVariable = formControl.valueStr();
Form	onClicked	FormControl	FormRun formRun = sender.formRun();  FormDataSource formDSSalesTable = formRun.dataSource(formDataSourceStr(SalesTable, SalesTable));  FormDataSource formDSSalesLine = formRun.dataSource(formDataSourceStr(SalesTable, SalesLine));         SalesTable salesTable = formDSSalesTable.cursor();  SalesLine salesLine = formDSSalesLine.cursor();
Form	Pre/Post event	XppPrePostArgs	FormRun formRun = args.getThis(); FormDataSource formDSLogisticsPostalAddress = formRun.dataSource(formDataSourceStr(LogisticsPostalAddress, LogisticsPostalAddress)); LogisticsPostalAddress logisticsPostalAddress = formDSLogisticsPostalAddress.cursor();
Table	onDelete	Common	PurchLine purchLine = sender as PurchLine;
Table	Modified Field Value	Common	TableName itemSettings = sender as TableName; ModifyFieldValueEventArgs fieldEvent = e as ModifyFieldValueEventArgs;   //check to see which field was modified   switch(fieldEvent.parmFieldName())         {             case fieldStr([tablename], [fieldname]):             ...do stuff             break;         }
Table	ValidateFieldValue	Common/DataEventArgs	ValidateFieldValueEventArgs fieldEvent = e; boolean isValid; PurchLine purchLine = sender as PurchLine;        //declare the checkFailed      isValid = checkFailed("some error event"); //save the result fieldEvent.parmValidateResult(isValid);
Table	Pre/Post event	XppPrePostArgs	PurchLine purchLine = args.getThis() as PurchLine;
Form	Getting different datasource from calling object	FormDataObject	Get different datasource from formdataobject. Such as modified InventDim.InventLocationId -> PurchLine  FormDataSource formDS = sender.datasource(); InventDim inventDim = formDS.cursor(); FormRun formRun = sender.datasource().formRun(); FormDataSource formPurchLineDS = formRun.datasource(formDataSourceStr(PurchTable, PurchLine)); PurchLine purchLine = formPurchLineDS.cursor();