Use the below code:
function OnChange() {
var optionsetControl = Xrm.Page.ui.controls.get("brd_statusreason");
var options = optionsetControl.getAttribute().getOptions();
var type = Xrm.Page.getAttribute("brd_status").getValue();
// 'Active' is selected
if (type == 172100000) {
optionsetControl.clearOptions();
for (var i = 0; i < options.length - 1; i++) {
if (i == 0 || i == 1 || i == 2) {
optionsetControl.addOption(options[i]);
}
}
}
// 'Resolved' is selected
else if (type == 172100001) {
optionsetControl.clearOptions();
for (var i = 0; i < options.length - 1; i++) {
if (i == 3 || i == 4) {
optionsetControl.addOption(options[i]);
}
}
}
// 'Cancelled' is selected
else if (type == 172100002) {
optionsetControl.clearOptions();
optionsetControl.addOption(options[5]);
}
}
The mentioned snippet is used to filter status reason based on the value of the status. You could get your second option set also, and based on the values of the two option sets add and remove the options of the third option set.
It works very good! BTW, do not forget to add similar script to on load of the form! You should have two functions! One works on load of the form and do not change until a value changes. Second on change of the desired option set!
If the answer helped you, remember to mark it as answer.
