C# How To Update Custom Record Fields

Using C# in Visual Studio 2008,

I created a custom "Record Type" Called "DevRecord" with the InternalID of 28, linked the Custom Record with customers, and a single Free Form Text field named "NameField" with the ID of "custrecord8".

See Image Bellow:



I created a record to a customer and I have been trying to update that field using the following code:

 try  {      CustomRecordSearch customRecordSearch = new CustomRecordSearch();   RecordRef recordRef = new RecordRef();   recordRef.internalId = "28";   recordRef.type = RecordType.customRecord;   customRecordSearch.basic = new CustomRecordSearchBasic();   customRecordSearch.basic.recType = recordRef;   SearchResult result = mNetsuiteService.search(customRecordSearch);     foreach (CustomRecord custRec in result.recordList)   {    CustomRecord cr = (CustomRecord)custRec;    ArrayList cfs = new ArrayList(cr.customFieldList);      for (int i = 0; i < cfs.Count; i++)    {     if (cfs[i].GetType().Name == "StringCustomFieldRef")     {      StringCustomFieldRef thisDate = (StringCustomFieldRef)cfs[i];      if (thisDate.internalId == "custrecord8")       thisDate.value = "UpdatedValue";     }    }      CustomFieldRef[] myList = new CustomFieldRef[cfs.Count];    myList = (CustomFieldRef[])cfs.ToArray(typeof(CustomFieldRef));    cr.customFieldList = myList;    cr.recType.typeSpecified = true;        Preferences pref = new Preferences();    pref.ignoreReadOnlyFields = true;    mNetsuiteService.preferences = pref;      WriteResponse response