Loop Question

[Breeze]

I'm trying to write values to a series of textboxes.

var qty = new Array(50);
var i=0;
while (i<50) {
qty[i] = i;

document.form.box1.value=qty[0];
document.form.box2.value=qty[1];
document.form.box3.value=qty[2];
document.form.box4.value=qty[3];
i=i+1
}


How do I simplify this for a lot more lines. Something like:

document.form.box[i].value=qty[i]

But box[i] is not an object so what do I do? Some sort of string array? Thanks

[Khalid Ali]

presuming that you have 50 text boxes

var qty = new Array(50);
var i=0;
while (i<50) {
eval('document.form.box'+i+'.value')=i++;
}

there are other ways to get this done as well.....

[Breeze]

I tried that but got the error "cannot assign to a function result"

Does the eval statement write to the textbox? Not familiar with eval

eval('document.form.box'+i+'.value')=i++;



What would be another way? Trying to learn more.

[fredmv]

I wouldn't recommend using eval. Check these threads for more details: http://forums.webdeveloper.com/showthread.php?s=&threadid=22920 http://forums.webdeveloper.com/showthread.php?s=&threadid=21625

[ray326]

Originally posted by Breeze
I tried that but got the error "cannot assign to a function result"

Does the eval statement write to the textbox? Not familiar with eval

eval('document.form.box'+i+'.value')=i++;

What would be another way? Trying to learn more.

while (i<50) {
eval('document.form.box'+i+'.value=' + i);
i++;
}

[fredmv]

onload = function()
{
var i = 0, f = document.forms[0];

do
{
f['box' + i].value = i;
}

while(++i < f.elements.length);
}

[Khalid Ali]

did any of the suggestions above did it for you??(ofcourse eval is not the most recomended one,,,its that it cam e to mind first..:D )

[Breeze]

The eval statement did work fine but I see it is not recommended so I'll try the other method. Thanks.