W3Data Controllers

Toggle navigation
TUTORIAL HOME
W3Data Controllers
❮ Previous Next ❯
What is a Controller?
A controller is a function you write to control your data.

With a self-written controller, you can modify data anyway you want.

You can:

Convert to upper case
Convert currencies
Calculate and Summarize
Round values
Substitute values
Change colors according to values
Anything else you are able to program
Adding a Controller
Adding a controller before displaying data, makes it possible to modify the data before they are displayed.

Example
// Add a controller to modify data before display
myController();

w3DisplayData("id01", myObject);
Controller Examples
Convert to Upper Case
function myController() {
  var i, x;
  var myArray = myObject["cd"];
  for (i = 0; i < myArray.length; i++) {
    myArray[i]["CustomerName"] =
    myArray[i]["CustomerName"].toUpperCase();
  }
}
»
Summarize Price
function myController() {
  var i;
  var x;
  var total = 0;
  var myArray = myObject["cd"];
  for (i = 0; i < myArray.length; i++) {
    total += Number(myArray[i]["price"]);
  }
  myObject["total"] = total.toFixed(2);
}
»

❮ Previous Next ❯