Dynamically populating a text field on the Master Page

I'm not sure I understood what your're trying to do.

But if you would like to update another fields value while typing you can use this script in the change:Event of the field you're typing in.

I'm trying to change the raw value in text field in my Master Page either as the user types in a text field on the form or as the user exits the field in which he typed data.

I know that I have to set the raw value of the text field in my Master Page to the raw value of the text field in which my user is typing. My problem is that I don't know how to refer to the text field in my Master Page by its fully qualified name. I can say 'this' when I'm in the Master Page text field scripts, but I don't know how to refer to that field when I'm in a script of one of the pages.

You can read the full som expression of a field it the script editor.

Go to the master page and select your text field.

Then open the script editor and select any available script.

The first line in the script editor show the som expression such as

form1.#pageSet[0].Page1.TextField2::exit - (JavaScript, client)

To refer to the field use xfa.resolveNode("form1.#pageSet[0].Page1.TextField2").rawValue

ARRRRGHHHH!! I knew where som expression was. I just didn't know how to use it. The resolveNode method was what I was missing. I tried it. I now sit here (after typing this) with two fists thrust in the air in VICTORY. !!

The answer was very clear and helpful.

It seems that the master page's objects are not instantiated until after the page is initialized.  I tried referencing the #pageSet[0] in an initialize method and got null but in the form::docReady method it worked.  Is there a reason for this?

I don't know the reason. I'm sure there is one. I'm finding LiveCycle and Javascript a bit inscrutable these days, being inexperienced at both. Anyway, putting the necessary code in the docReady event worked. It's maddening how the solution was so simple, and I was so close, but still so wrong. Now if someone would show me how to add an instance to a subform but have it appear in the middle of the array.....

To have an instance appear somewhere other than the bottom when added, you can use the moveInstance function, i.e. -

_row1.addInstance(true);

_row1.moveInstance((_row1.count-1), newIndexPosition);

where _row1.count-1 is the newly added row and newIndexPosition is where you want the new row to end up.

What happens to the instance that was formerly occupying the position marked by newIndexPosition and all the other instances between newIndexPostion and the (new) last instance?

I got it to work with one little hitch. The moveInstance method moved the instance to the position after the one designated by newIndexPostion. That's what I wanted so I just let the index of the current instance be the second parameter. I knew it would be simple. Thanks.

Here's the code from the click event:

// Save the current instance index and location

var i = this.parent.index;

var MyLocation = this.somExpression;

// Add the new instance

parent.instanceManager.addInstance(1);

// select the instance to be relocated (in this case, it's the one just added)

var last = this.parent.instanceManager.count - 1;

// Move the new instance to the desired position after the current instance

parent.instanceManager.moveInstance(last, i);

// Set the cursor position for when the screen is redrawn.

xfa.host.setFocus(MyLocation);