ValueChangingEventArgs Constructor

Initializes a new instance of the ValueChangingEventArgs class.

Namespace: MindFusion.Common.UI
File: EventArgs.js

 Syntax

JavaScript

function ValueChangingEventArgs (oldValue, newValue)

 Parameters

oldValue

Object. The value before the change.

newValue

Object. The new value.

 Example

The following code handles the valueChanging event of an ImagePicker:

JavaScript

var u = MindFusion.Common.UI;var imagePicker = u.ImagePicker(document.getElementById("image_picker"));
imagePicker.valueChanging.addEventListener(handleValueChanging);function handleValueChanging(sender, args)
{
    //check if an image has been selected and uploaded
    if(args.oldValue.url != "my-folder/myImage.png")
    {
       args.cancel = true;
    }
}