observerObject

An optional observer for the options store.

Upon field modification, the optionsChange(e) method on the observer will be called with a single argument containing two fields:

  • field - The fully qualified field name
  • value - The new field value

Example

<script>
    var myObserver = {
        optionsChange: function(e) {
            console.log("Option changed: " + e.field + " = " + e.value);
        }
    };
    
    var options = new kendo.drawing.OptionsStore({
        color: "red",
        size: 10
    });
    
    // Set the observer
    options.observer = myObserver;
    
    // This will trigger the optionsChange callback
    options.set("color", "blue"); // Logs: "Option changed: color = blue"
    options.set("size", 15);      // Logs: "Option changed: size = 15"
</script>
In this article
observer
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