dropdown selection auto-selecting checkboxes

Hello @Malcolm28876973cmri

I hope you are doing well, and thanks for reaching out. Sorry for the trouble.

You can try this with a small JavaScript attached to the dropdown field. I’d first clear all nine checkboxes and then check only the group associated with the selected dropdown value.

Assuming your dropdown export values are exactly HDRL, RAD, LDL, and blank, you can use:

var groups = {

    "HDRL": ["cb1", "cb2", "cb3"],

    "RAD":  ["cb4", "cb5", "cb6"],

    "LDL":  ["cb7", "cb8", "cb9"]

};

var allBoxes = ["cb1","cb2","cb3","cb4","cb5","cb6","cb7","cb8","cb9"];

// Clear all checkboxes first

for (var i = 0; i < allBoxes.length; i++) {

    this.getField(allBoxes[i]).value = "Off";

}

// Check only the boxes associated with the selected lab group

var selected = event.value;

if (groups[selected]) {

    for (var j = 0; j < groups[selected].length; j++) {

        var f = this.getField(groups[selected][j]);

        f.checkThisBox(0, true);

    }

}

Or,

var groups = {

HDRL: 1,

RAD: 4,

LDL: 7

};

var first = groups[event.value];

for (var i = 1; i <= 9; i++) {

var shouldCheck =

first !== undefined && i >= first && i < first + 3;

this.getField("cb" + i).checkThisBox(0, shouldCheck);

}

Add the script to the dropdown's appropriate selection action. Because the script clears the boxes first, selecting the blank entry will leave all nine unchecked. Also make sure the dropdown's export values match HDRL, RAD, and LDL exactly, and that the checkbox field names are exactly cb1 through cb9.

Note: This is a sample script and may or may not work in your environment, as you might have to make changes depending on the PDF form type, app version, etc.

To learn more about the JavaScripts in Acrobat and PDF forms, please refer to this article: https://adobe.ly/4A9uCnb

Hope this helps, and please reach out if you need any assistance.

Regards,

Anand Sri.