編集

次の方法で共有

Record.FindLast() Method

  • [アーティクル]

Version: Available or changed with runtime version 1.0.

Finds the last record in a table based on the current key and filter.

Syntax

[Ok := ]  Record.FindLast()

Parameters

Record
 Type: Record
An instance of the Record data type.

Return Value

[Optional] Ok
 Type: Boolean
true if the operation was successful; otherwise false. If you omit this optional return value and the operation does not execute successfully, a runtime error will occur.

Remarks

This method should be used instead of Find('+') when you only need the last record.

You should only use this method when you explicitly want to find the last record in a table/set. Do not use this method in combination with Repeat...Until.

Calling FindLast on an empty table from the OnNewRecord trigger causes the Business Central Server to throw an exception, and the AL execution stops. However, the client suppresses this error and does not show any error message to the user. Therefore, when using FindLast inside this trigger, you should add code that conditionally verifies whether a record was found, and if not, notify the user with a message. For example:

if not MyRecord.FindLast then
    Error('error message');

Example

This example requires that you create a Record variable named GLEntryRec for the G/L Entry table.

// Read the last record only.   
if GLEntryRec.FindLast then  
  ...

Record Data Type
Get Started with AL
Developing Extensions
AL Database Methods and Performance on SQL Server