How to programmatically create a TermGroup which is accessible and usable through all SiteCollection

Question

I want to know how to programmatically create a TermGroup which is accessible and usable through all SiteCollection.

Answer 1

As state here. I used it and it worked for me!

 $(document).ready(function(){   

        var scriptbase = _spPageContextInfo.webServerRelativeUrl + "_layouts/15/";

        $.getScript(scriptbase + "SP.Runtime.js",
            function () {
                $.getScript(scriptbase + "SP.js", function(){

                    $.getScript(scriptbase + "SP.Taxonomy.js", execOperation);

                });
            }
        );

    });

    function execOperation(){

        //Current Context
        var context = SP.ClientContext.get_current();

        //Current Taxonomy Session
        var taxSession = SP.Taxonomy.TaxonomySession.getTaxonomySession(context);

        //Term Stores
        var termStores = taxSession.get_termStores();

        //Term Store under which to create the group.
        var termStore = termStores.getByName("Taxonomy_Dmxzz8tIBzk8wNVKQpJ+xA==");      

        //New Group with name and new GUID
        var newGroup = termStore.createGroup("New Group Name","b300304a-1693-4629-a1c0-dff7bda644ff");

        context.load(newGroup);

        context.executeQueryAsync(function(){

        console.log(newGroup.get_name());

        },function(sender,args){

        console.log(args.get_message());

        });

    }

For c# see here. I did not test it!