When you have a control that is dependent on whether a checkbox is selected or not. In this example the dependent controls are description textboxes that will become enabled when a specific checkbox is selected.
if (MainTrigger_for_Checkbox.value === 'Yes') {
Checkbox_Name.enabled = true;
Checkbox_Name.required = true;
//declaring variables of the options
var Variable_Name1 = false;
var Variable_Name2 = false;
var Variable_Name3 = false;
//For loop for the checkbox options
for (var i = 0; i < Checkbox_Name.value.length; i++) {
if (Checkbox_Name[i].value === 'Option_Name1') {
Variable_Name1 = true;
}
if (Checkbox_Name[i].value === 'Option_Name2') {
Variable_Name2 = true;
}
if (Checkbox_Name[i].value === 'Option_Name3') {
Variable_Name3 = true;
}
}
//if this scenario happens then the Describe_Box# is enabled and required
if (Variable_Name1 === true) {
Describe_Box1.enabled = true;
Describe_Box1.required = true;
} else {
Describe_Box1.enabled = false;
Describe_Box1.value = null;
Describe_Box1.required = false;
}
if (Variable_Name2 === true) {
Describe_Box2.enabled = true;
Describe_Box2.required = true;
} else {
Describe_Box2.enabled = false;
Describe_Box2.value = null;
Describe_Box2.required = false;
}
if (Variable_Name3 === true) {
Describe_Box3.enabled = true;
Describe_Box3.required = true;
} else {
Describe_Box3.enabled = false;
Describe_Box3.value = null;
Describe_Box3.required = false;
}
/*if Yes is not selected then Checkbox_Name is not enabled, required, and the value is null,
values in the Describe box also becomes null **/
} else {
Checkbox_Name.enabled = false;
Checkbox_Name.required =false;
Checkbox_Name.value = null;
Describe_Box1.value = null;
Describe_Box2.value = null;
Describe_Box3.value = null;
}