27 - Panorama Necto 14 component mode & java script - visualization & data discovery solution

Necto Training Module
27: Necto SDK and
JavaScript Basics

Objectives
 By the end of this lesson you will be able to:
 Show basic knowledge in JavaScript
 Debug your JavaScript using Internet Explorer
 Manipulate Necto using the Necto SDK

Agenda
 Overview
 Using JavaScript with Necto
 Flow of JavaScript and API’s in Necto
 Debugging in Necto and Internet Explorer
 Using DCOM XML’s in Necto
 Example and Exercise

Necto SDK and JavaScript Overview

Overview
 JavaScript is the language of choice to make
modifications and additions to Necto
 It can be used with HTML and interact with the
Document Object Model (DOM)
 JavaScript is run on the client machine so provides
an immediate response, generally not requiring
interaction with the server.
 Necto has a full suite of API’s which can be called
and modified by JavaScript code.

JavaScript options
 JavaScript variables and functions are case sensitive
 Use JavaScript to:
 React to events
 <button type="button"
onclick="alert('Welcome!')">Click Me!</button>
 Write to HTML output
 document.write("<h1>This is a heading</h1>");
 Change HTML Content
 x=document.getElementById("demo") //Find the
element
x.innerHTML="Hello JavaScript"; //Change the content

JavaScript: Choose the syntax for the level
 When you write JS code in Necto you need
to be aware of the level you are addressing
in Necto
 Application Level, HTML.
 getComponentById("NectoApplication",
"pnAppl").getWbParametersValues();
 WorkBoard Level (components)
 getComponentById(“View1","pnAppl").c
allSetGridSelection(2,0,2,1,0);

Where can I use JavaScript?
 You can add JavaScript code to many areas of
Necto including but not limited to:
 E-BINecto.htm
 Entries are surrounded by <script language=JavaScript></script>
 In a WorkBoard JavaScript entry area
 No requirements for surrounding script setup
 In side any HTML component
 Entries are surrounded by
 <HTML><BODY><SCRIPT> … </SCRIPT></BODY></HTML>
 As a best practice for developing JavaScript we recommend
using a development tool or Notepad++

Functions in JavaScript
 Functions: A function contains code that will be executed by
an event or by a call to the function.
 You may call a function from anywhere within a page (or
even from other pages if the function is embedded in an
external .js file).
 Example :
function onWorkboardLoadedEvent ()
{
alert (“Workboard loaded”);
}
 A good JavaScript tutorial is available at
http://www.w3schools.com/js/default.asp

Necto SDK and API
 To add the functionality to Necto you need to use
a combination of the API’s and the SDK
 All Necto Installations are shipped with the latest
API and SDK documentation, the URL’s for these
are below:
 API =
http://<yourservername>/panorama/api/necto-
api-reference.htm
 SDK =
http://<yourservername/panorama/api/necto_S
DK.htm

Flow of JavaScript and API’s in Necto

API flow in Necto
 Wait for something to happen (a trigger
for an Event).
 If required get data and then identify
the specific item you need.
 Process the data
 Change data and/or output a reaction.

API’s in Necto
 We have multiple API’s for:
 Events such as onClickCommand()
 Calls such as callSave()
 Triggers such as onMemberChanged()
 All API’s can be found here
http://tech.panorama.com search for API
 All API’s are in the format lowercase first letter for
the first word followed by uppercase thereafter i.e.
callFilterGridMembers()

Debugging in Necto and Internet
Explorer

Debugging in Necto
 In Internet Explorer simply edit the options under
advanced; uncheck – ‘Disable Script Debugging
(Internet Explorer)’ and (Other)
 To debug or activate changes in
 your JavaScript code you must:
 Apply changes
 Save WorkBoard
 Refresh/Reload WorkBoard

Starting the debugger 1
 Use the Debugger to check you are changing the
correct item to do this add ‘debugger;’ to the Java
code
 Example:
 getSomething()
 {
 debugger;
 var a = 1;
 alert(a);
 }

Starting the debugger 2
 The debugging will spawn a debugging tool in my
case it’s Visual Studio and you will get a message
similar to:
 You should be able to
step through your code
and set breakpoints etc…

Manipulating XML data in Necto
 Retrieve data use the XML DCOM object
 Find the correct leaf value
 Manipulate the data in the leaf
 Write back the xmlDoc.xml string
 Code Snippet to manipulate the xml data:
 function onWbParameterChanged(id, xml)
 {
 var temp = getComponentById("NectoApplication“,
“pnAppl”).getWbParametersValues();
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async=false;
xmlDoc.loadXML(temp);
x=xmlDoc.getElementsByTagName('Param');
x[0].setAttribute("Value","5");
x[0].setAttribute("Caption","5");
getComponentById("NectoApplication“,
“pnAppl”,).setWbParametersValues(xmlDoc.xml);
}

Manipulating XML data in Necto Example
 To complete the examples you require:
 Contoso Cube (http://www.microsoft.com/en-
us/download/details.aspx?id=18279)
 Sample WorkBoard
 Necto 14.1
 Follow these instructions :

Adding functionality to a WorkBoard
 To complete the exercise you require:
 Contoso Cube
 Necto 14.1
 Follow these instructions :
 Using the same view as we looked at in the exercise add functionality to it by
adding a pick list (like the one below) and adding the ability to show the
original view and alternatively show a view from any of your other WorkBoards
 You will need to use the API callReplaceView
 The viewpath that the API requires is held in the view properties->general-
>View path

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