Generating a random number.

[bc2018]

I can not seem to figure out how I can insert a random number generator into a work order form that I have already created and put all other required field items into. I am not savy when it comes to any of the JavaScript stuff. I need the number to be (4) digits and I need it to re-generate on each new form after it is filled out and saved or upon opening a new one. any step by step help would be greatly appreciated!

[try67]

You want it to change the number after the form is saved? That will just mean it will be lost, unless the user re-saves the form (which will cause a new number to be generated, etc.). I think the best is to do so before the file is sent.

To do so you can use the following code (let's say you want to place it in a text field called "Unique ID"):

this.getField("Unique ID").value = Math.random().toString().substr(2,4);

Keep in mind you could get duplicates, though. There's a 0.1% chance of getting a duplicate number the second time you generate it, and the more you use it, the higher that number becomes.

[try67]

Sorry, 0.01%...

[bc2018]

sorry for the wording Try67. what I meant was id want it to generate a new number each time it is opened (as a blank) work order form. im confused on where exactly to input any of these codes.

[try67]

So you want to only populate the field if it's empty? The go to Tools - JavaScript - Document JavaScripts and create a new item (let's call it "scripts"), with the following code (delete the code that is generated by default when you open the editor window):

if (this.getField("Unique ID").valueAsString=="")
     this.getField("Unique ID").value = Math.random().toString().substr(2,4);