AllowMultipleValues in taxonomy field in CSOM Javascript

Question

I am trying to create a taxonomy column within JSOM , I am nearly there but I have set the type to :

var fieldSchema = `<Field Type="TaxonomyFieldTypeMulti" 
                           Name="SessionTopics" 
                           DisplayName="Session Topics"
                         Required="TRUE" 
                        Group="Limited Document Library" />`;

and the allow multiple values is still not ticked within the column settings.

I have seen that there is a AllowMultipleValues switch that needs turning on to true, and this should set the tick.

I cannot seem to find it and also I am not sure where to set it.

I have casted the column to :

txField = ctx.castTo(field, SP.Taxonomy.TaxonomyField);  

and I still cannot find the property to set it, to true.

Any ideas ??

Answer 1

try the below code, I have added Mult="TRUE" this we used to use in our old codes

var fieldSchema = <Field Type="TaxonomyFieldTypeMulti" 
                         Name="SessionTopics" 
                         Mult="TRUE"
                         DisplayName="Session Topics"
                         Required="TRUE" 
                         Group="Limited Document Library" />;