Cascading DropDowns in Dynamic Form

[copemed]

I'm having issues implementing Cascading DropDowns inside of a dynamic form.
I have a working non-dynamic set of Cascading DropDowns, but I keep getting the following error when attempting to implement it dynamically.

I believe the issue is to do with how I have set the data value, as the error does not occur when either...

• The Delta dropdown has no data assigned
• The data assigned to the Delta dropdown is not cascaded

Error Message:

Code:

HTML:

Any advice or guidance would be greatly appreciated.

[enchev]

There is a null reference somewhere in your razor. You can use null check operator .? to avoid this.

[copemed]

Here is my solution In-case anyone has a similar issue.

HTML: