Accessing Window Dialog Properties with variable names

[Andrew]

Say we have defined a Dialog window:

myWindow = new Window (myDialogRef);

It has a button, btn1, and we can do:

myWindow.btn1.onClick = function () {alert('something');}

Now say we have btn1 - btnN where N varies according to circumstance. Is there any tidy way to create a working list of

Window.btn1.onClick =
to
Window.btnN.onClick =

The following comes close but fails at the final post:

Code: Select allbtnAr = new Array();k = 0;

for (p in myWindow)
{
   if (p.substr(0,3) == 'btn') {btnAr[k] = myWindow[p]}
}

then...

btnAr[0].onClick = function () {dosomething} // this works

unfortunately

for (k=0;k<btnAr.length;k++) {
  btnAr[k].onClick = function () {dosomething} // this does not work
}


The alternative uses eval

Code: Select alltString = 'myWindow.btn1'; // which can be easily generated in a for loop

eval(tString).onClick = function () {dosomething} // works



Again it will fail once placed in a for loop. Maybe a bit more messing will get me there with eval but I still tend to view eval == evil, maybe I should get over it

Andrew

[Andrew]

Yes it can be done with eval:

Code: Select alltString  = 'myWindow.btn1.onClick = function () {dosomething}
tString += 'myWindow.btn2.onClick = function () {dosomething}
tString += 'myWindow.btnN.onClick = function () {dosomething}

eval(tString);

(To tell the truth I think Xbytor put me onto this a while ago. I still don't like the eval thang but...).

Andrew

[obiwan1129]

Andrew, this was a very interesting idea. You mentioned that you had it worked out. Can you share the full code snippet for what you worked out for this?

Thanks.

[Andrew]

I use this technique all the time now. Here is an example of a fairly complex dynamic dialog from a script I am currently working on. Obviously there are different variations on how it can be done but the fundamental point is simple - use eval to define the dialog variables within a for loop.

To make things easier, when an onClick event has a complex function, this function can be called by its function name within onClick and then defined the normal way outside the loop eg with

ctextAr["+i+"] = recordConditionStep(myData);

recordConditionStep(myData) is just a normal function.

Andrew

[cmyk]

Hi Folks,

Would it be possible to get the full code snippet re-posted. Andrew's link from above is no longer valid for this aging thread:)

thanks

[cmyk]

thanks