Dynamics Community Forum Thread Details

How don't save a register if the fields are empty

Hi

I am a beginner in the subject of Dynamics 365

I ask for your help to solve this problem.

I have a form, with two tables, header and detail.

I created a number sequence, so that it increases when creating a record, I attach code.

But, I have to make the sequence consume if I enter data in the form, otherwise the fields are empty, 
record should not be saved nor should the sequence be consumed. That is, if I click New, 
the sequence is automatically consumed when opening the form (example: USMF-000020) 
but if I do not fill in anything in the fields, when closing and reopening, 
it must be the same numerical sequence, that is, USMF -000020.


Este es mi código de secuencia numérica, que se encuentra en mi formulario. 


public str ConsumirSecuencia(NumberSequenceCode _secuenceGroup)
 {
 str voucher;
 NumberSeq Ns;
 
 try
 {
 Ns = NumberSeq::newGetNumFromCode(_secuenceGroup, NumberSeqScopeFactory::createDefaultScope(), 
 true, true);
 if (Ns == null)
 {
 throw Exception::Error;
 }
 voucher = Ns.num();
 Ns.used();
 }
 catch (Exception::Error)
 {
 error("No se pudo generar la sencuencia");
 }
 
 return voucher;
 }





Y al correr el formulario, tengo en el código a nivel de datasource, que se inicialice con la secuencia numérica 

[DataSource] class APSalesHeader 
{ 
/// <summary> ///
 /// </summary> 

public void initValue () 
{ 
APSalesHeader.APOrderId = element.ConsumirSecuencia ('TR'); 
súper(); 
} 

Por favor su ayuda. Y de antemano muchas gracias.