Kill Idle Connections

To save concurrent uses in NAV it might be a good idea to kill idle connections automatically.

This can be done by looping through the Session Virtual Table and check the Idle Time field. I like to add the field “Maximum Idle Time” to the User Setup table and compare that field to the Idle Time in the Session table before deciding to kill the session.

The use running this batch must have permission to kill sessions on the SQL Server.
[code htmlscript=”false”]IF ISCLEAR(ADOConnection) THEN

IF ADOConnection.State = 1 THEN

‘Driver={SQL Server Native Client 10.0};’ +
‘Server=<ServerName>;’ +
‘Database=<DatabaseName>;’ +

Session – OnAfterGetRecord()
IF "Application Name" <>
‘Microsoft Dynamics NAV Classic client’
BackSlashPos := STRPOS("User ID",’\’);
UPPERCASE(COPYSTR("User ID",BackSlashPos + 1)))
IF FORMAT(UserSetup."Maximum Idle Time") = ” THEN
Idle := "Idle Time";
MaxIdle := (UserSetup."Maximum Idle Time" – 000000T);
IF Idle < MaxIdle THEN

ADOConnection.Execute(STRSUBSTNO(‘KILL %1’,"Connection ID"));

Session – OnPostDataItem()

Name DataType Subtype Length
UserSetup Record User Setup
ADOConnection Automation ‘Microsoft ActiveX Data Objects 2.8 Library’.Connection
MaxIdle Decimal
Idle Decimal
BackSlashPos Integer

This can be added as a Job Queue Batch.

See here to check for required permission to use the kill statement.

Import a text to RTC Note in the Record Link Table

In the process of importing data from MSSQL into NAV I needed to import a comment text. I wanted to import the text into the Note BLOB field in the Record Link table. It was not obvious how to do this but after some work I successfully imported all my comments.

I first start to create the record link with the following code
[code htmlscript=”false”]IF Note <> ” THEN BEGIN
RecordLink.Type := RecordLink.Type::Note;
After my first round I found out that I needed to include the length of the Note as a Char in the beginning of the note. Then I noticed that my Icelandic characters where not correctly imported and after some study found out that the content of the BLOB needs to be UFT-8 encoded. This led me to create the Text2NoteText function.
[code htmlscript=”false”]Text2NoteText(NoteToImport : Text[1024]) NAVNode : Text[1024]
NAVNode := UTF8Encode(NoteToImport);
NoteLength := STRLEN(NAVNode);
IF NoteLength <= 255 THEN BEGIN
Char1 := NoteLength;
NAVNode := FORMAT(Char1) + NAVNode;
Char2 := 1;
Char1 := 128 + (NoteLength – 256) MOD 128;
Char2 := 2 + (NoteLength – 256) DIV 128;
NAVNode := FORMAT(Char1) + FORMAT(Char2) + NAVNode;
And the UFT8Encode function
[code htmlscript=”false”]UTF8Encode(String2Encode : Text[1024]) EncodedString : Text[1024]
String2Encode := CONVERTSTR(String2Encode,NavStr,AsciiStr);
FOR Index := 1 TO STRLEN(String2Encode) DO BEGIN
Char2 := String2Encode[Index];
IF Char2 <= 127 THEN
EncodedString := EncodedString + FORMAT(Char2)
Char1 := 194;
EncodedString := EncodedString + FORMAT(Char1) + FORMAT(Char2);
Char1 := 195;
Char2 := Char2 – 64;
EncodedString := EncodedString + FORMAT(Char1) + FORMAT(Char2);
The MakeVars function creates the NavStr and AsciiStr that I need for the conversion. This is similar to function InitCharTables in Codeunit 424 except I am not using Excel to convert the strings.

Attached is a codeunit with these functions.



NAV Web Service and PHP

I wanted to replace MySQL with NAV Web Service as a data source for my PHP web site.  I started to look around and found all I needed in Freddys Blog.  First post is about changes in authentication method of the web service, the later post displays the code needed to connect to the web service with php.

I have an php web on my Windows Home Server and needed to activate two more extensions to get things working.

Here are the php files that I used – PHP consume NAV Web Service

Example on using NAV Web Service in NAV C/Side

Some of our clients are using LS Retail.That solution supports stand-alone POS terminals that are running Microsoft Dynamics NAV.  It is therefore easy to allow these terminals to be used also as a punch clock.

This punch clock starts up a background process to handle synchronization via web services.  Attached is a demo c/side code on how the web services are consumed.


Creating Web Services in NAV 2009

I have been working on NAV Time Registration and the solution is almost ready.  The last step was to create a web service that supports stand-alone punching clocks, both in .net c# and also as a NAV client.

The web service is a standard codeunit with functions.  I make sure the functions that are not to be published have the Local property set to Yes.

Using XMLport in web services requires a few parameter changes.  First I include them in the function parameters.  I use a boolean parameter in Return Value as a success flag.

Then in XMLport properties I change direction to export, change format to XML and select to use default namespace.

The C/Side code to answer this web service is.
[code htmlscript=”false”]IF NOT ValidateClockID(ClockID,ResponseMessage) THEN BEGIN

IF NOT CreateEmployeeBuffer(EmployeeBuffer,ResponseMessage) THEN BEGIN

ResponseMessage := Text033;
Then finally I run form 860, Web Services and add a line for this web service to be published.

Next post is a demonstration on how to use this web service.  I used Freddys multiple service tier post in my developement enviroment to setup NAV services.


Icelandic Localization

In the localized version of Dynamics NAV 2009 R2 the report layout for Role Tailored Client is missing.  I have created the layout and applied a few fixes to the reports.

ID Name Caption
204 Sales – Quote Sala – Tilboð
205 Order Confirmation Pöntunarstaðfesting
206 Sales – Invoice Sala – Reikningur
207 Sales – Credit Memo Sala – Kreditreikningur
210 Blanket Sales Order Standandi sölupöntun
405 Order Pöntun
406 Purchase – Invoice Innkaup – Reikningur
407 Purchase – Credit Memo Innkaup – Kreditreikningur
10911 IRS Details Upplýs. vegna skattstofu
10912 Trial Balance – IRS Number Prófjöfnuður – Skattst.númer
10913 IRS notification Tilkynning skattayfirvalda
10940 VAT Balancing A VSK-afstemming A
10941 VAT Balancing Report VSK

The following ZIP file is encrypted.

NAV IS2009R2 Reports

Record Links and Attachments

The standard Record Links table in Dynamics NAV has the ability to store a URL and link it to any record in the Dynamics NAV database.  However, in order to fully use this each user must have access to the give URL.

As a part of the Purchase Invoice signing solution I built a process to select or scan a file, upload it to a SQL database and create a URL to that file in the Record Link table.  I create a  SQL link table that stores the file and a permission table that holds information on users permission by table id.

I used TwainControlX to scan and create files to import and link.  Then I add a “Link File” button to the Purchase Order.

When Link File is selected the following dialogue appears.

After selecting or scanning a file a new link is created and the file is uploaded to the SQL server.

The file is now available to all users that have the required permission through the following link.

The can be downloaded directly with the Open button or NAV can download and open the file with code.  I created a .ASP web page to download files from the Link database.

Add Namespaces to outgoing XML

The tax authority in Iceland are using Soap web services.  I have built XML Ports in NAV to create the request XML and another one to read the response XML.

I already wrote about using stylesheet to strip namespaces from the incoming XML before passing it to the XML Port.  I previously just added namespaces to the outgoing XML with attributes in the request XML Port.  This does not work in Role Tailored Client.

The solution was to remove all the namespaces attributes from the request XML Ports and create a function to add namespaces to the XML before passing it to the web server.  This work both in Classic Client and in Role Tailored Client.

AddNameSpaces source code