Explanation:
To properly apply the No. Series Design Pattern in the OnInsert() trigger, the correct sequence of actions should be as follows:
ContosoSetup.Get();
First, retrieve the Contoso Setup record using the Get method. This ensures that the necessary setup information is available, including the No. Series.
if "No." = '' then begin
Next, check if the No. field is empty. If it is, a new number from the No. Series should be assigned.
NoSeriesManagement.InitSeries(ContosoSetup."Vendor Nos.", "No. Series", 0D, "No.", "No. Series");
Call the InitSeries function to assign a new number from the No. Series. This initializes the No. Series for the Vendor Nos. field.
ContosoSetup.TestField("Vendor Nos.");
Lastly, ensure that the Vendor Nos. field is populated and valid by calling TestField.
Correct Order for Code Segments:
ContosoSetup.Get();
if "No." = '' then begin
NoSeriesManagement.InitSeries(ContosoSetup."Vendor Nos.", "No. Series", 0D, "No.", "No. Series"); ContosoSetup.TestField("Vendor Nos.");