Here is the control definition on my page:
Then via C# I've tried setting the value like this:
HierarchicalFieldControl.Value = categoryId;
hierarchicalFieldControl = $get(
And unfortunately that did not work either, but it did produce the following error:
"Guid should contain 32 digits with 4 dashes"
Which happened when the control attempted to perform a service call. I checked both instances of code to confirm the categoryId values were proper GUIDs and the were both formatted like this:
Any insight or suggestions would be appreciated.