Hi,

I have a form with a drop down list built from an Umbraco drop down data type list. I want to use the ContentService .SetValue to set the value that the user selected in the content node so I think I need the internal prevalue ID of the value in the drop down.

newPartnerNode.SetValue("businessSector", businessSectorId); 

So how do I get the internal ID required to set the value?

I've tried something like:

IDataTypeService ds = ApplicationContext.Current.Services.DataTypeService; 
IDataTypeDefinition SectorType = ds.GetAllDataTypeDefinitions().First(d => d.Name == "Business Sector Picker");
int sectorId = ds.GetPreValuesCollectionByDataTypeId(SectorType.Id).PreValuesAsDictionary.Where(d => d.Value == submnission.BusinessSector).First().Id;