>>On that form there is another drop-down for the Salespoint Type. Certain types don't require item tree selected but most types require a selection. So, I am thinking how I should implement this. The non-0 item tree requirement is only for certain types and I am selecting the type.
>
>So you have multiple selects bound the same source ?
>In that case a directive is definitely the best option....

No, there are two separate columns in a table. One is Type and another is Item Tree Id. This part of the User Story in TFS is not yet spelled out completely, but as I understood, for certain types the Item Tree Id can not be 0. For other types it can be 0.

For now I have on my form:

 <div class="form-group">
            <label class="control-label col-md-3" title="ItemTree">Item Tree:</label>
            <div class="controls">
                <div class=" col-md-8 col-lg-9">

                    <select class="form-control" ng-model="currentSalespoint.iTreeTop"
                            ng-options="t.id as t.descrip for t in metaData.itemTrees">
                       
                    </select>
                </div>
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-3" title="SalespointTypes">Salespoint Types:</label>
            <div class="col-lg-6 col-md-6">
                <select class="form-control" ng-model="currentSalespoint.typeTmplId"
                        ng-options="s.groupId as s.groupName for s in metaData.salespointTypeGroups">                    
                </select>
            </div>
        </div>

They are currently in the different order (first item tree, then type, I think it's going to change). So, the tree is going to depend on the selection from the Types.

What do you have in mind for the directive?

Thanks again.