Making a Delete button For a form Via JAVASCRIPT

[Flynn0101]

Hello,

I am trying to create buttons for corresponding fields that when clicked will remove the fields and replace the fields with the fields below.

I have placed this javascript in a button under "run a javascript" when "mouse up"

var idNumber = event.target.name.replace("Delete", "");
for(var i = (parseInt(idNumber)); i <= 40; ++i) {
this.getField("ID"+(parseInt(idNumber)+(i)-1)).value = this.getField("ID"+(parseInt(idNumber)+(i))).value;
this.getField("Desc"+(parseInt(idNumber)+(i)-1)).value = this.getField("Desc"+(parseInt(idNumber)+(i))).value;
this.getField("No"+(parseInt(idNumber)+(i)-1)).value = this.getField("No"+(parseInt(idNumber)+(i))).value;
this.getField("Unit"+(parseInt(idNumber)+(i)-1)).value = this.getField("Unit"+(parseInt(idNumber)+(i))).value;
this.getField("Price"+(parseInt(idNumber)+(i)-1)).value = this.getField("Price"+(parseInt(idNumber)+(i))).value;
this.getField("Total"+(parseInt(idNumber)+(i)-1)).value = this.getField("Total"+(parseInt(idNumber)+(i))).value;
}

 I have done some tests and it seems that the problem is with thee "i" variable
can someone please help me with this problem

Thank you all kindly in advance!

-Flynn

[Bernd Alheit]

What field names does you use?

[Flynn0101]

@Bernd Alheit 
The field names are a word plus a number that ranges from 1- 40. so the first columns all the words are
"ID1", "Desc1", "No1", "Unit1", "Price1" "Total1", 
and at the last column the fields are 

"ID40", "Desc40", "No40", "Unit40", "Price40" "Total40", 
The corresponding Button is labelled "Delete"+(1-40)

[Flynn0101]

@Bernd Alheit 

EDIT: I meant ROWS, not Columns!

[Bernd Alheit · Accepted solution]

Something like this:

var idNumber = parseInt(event.target.name.replace("Delete", ""));
for (var i = idNumber; i < 40; i++) {
  this.getField("ID" + i).value = this.getField("ID" + (i + 1)).value;
  ..
}
var i = 40;
this.getField("ID" + i).value = "";
...

[Flynn0101]

Hey @Bernd Alheit  That works perfetly!

Could you help out with this code? its the same as the one you posted but is used for adding an empty field.

At this moment it seems to be doing nothing.

  var idNumber = parseInt(event.target.name.replace("Add", ""));
for (var i = 40; i >= idNumber; i--) {
    this.getField("ID" + i).value = this.getField("ID" + (i - 1)).value;
    this.getField("Desc" + i).value = this.getField("Desc" + (i - 1)).value;
    this.getField("No" + i).value = this.getField("No" + (i - 1)).value;
    this.getField("Unit" + i).value = this.getField("Unit" + (i - 1)).value;
    this.getField("Price" + i).value = this.getField("Price" + (i - 1)).value;
    this.getField("Total" + i).value = this.getField("Total" + (i - 1)).value;
  }
  var i = idNumber;
    this.getField("ID" + i).value = "";
    this.getField("Desc" + i).value = "";
    this.getField("No" + i).value = "";
    this.getField("Unit" + i).value = "";
    this.getField("Price" + i).value = "";
    this.getField("Total" + i).value ="";

Thank you again! 

[Bernd Alheit]

Check the Javascript console for errors.

[Flynn0101]

@Bernd Alheit 

I fixed the problem but now there is another problem.

Now it just duplicates the first thing that has a value in the field below it.

);

no error code in terminal

[Flynn0101]

@Bernd Alheit 

I FIXED IT!

i changed it from:

for (var i = 40; I >= idNumber; i--) {

to:

for (var i = 40; i => idNumber; i--) {

[try67]

No, you didn't... Actually, you introduced a new error.

It should be:

for (var i = 40; i >= idNumber; i--) {

[Flynn0101]

@try67 @Bernd Alheit 
I've moved this discussion to a new post because it seems to be a bit complicated.

https://community.adobe.com/t5/acrobat/making-an-add-empty-column-button-javascript/m-p/12009256#M31...

[try67]

So you want to delete the values in the first row?

[Flynn0101]

@try67 
I want to replace the field with the field below it (Like in the poorly drawn picture).

The goal is to have a button next to every row so that when pressed all of the fields will move up into the field before it. It replaces the values with the fields below it and then the fields under that will be replaced and so on.

[try67]

Yes, I understood. But that means the values in the first row will be deleted...