private bool AssertContinueSelecting(AssistantEntity entity, AssistantQueryParameter parameter, string[] fields, out AssistantPrepareEventArgs eventContext)
{
eventContext = null;
if (PreSelectItem != null)
{
eventContext = new AssistantPrepareEventArgs();
eventContext.Entity = entity;
eventContext.Fields = fields;
PreSelectItem(this, eventContext);
return(!eventContext.Canceled);
}
return(true);
}
public List <T> SelectList <T>(IConnection conn, string tablename, Criteria condition, Order[] orders, int offset, int count, object[] fields)
{
AssistantPrepareEventArgs args;
AssistantEntity typedEntity = new AssistantEntity(typeof(T));
typedEntity.TableName = tablename;
typedEntity.Criteria = condition;
AssistantQueryParameter parameter = new AssistantQueryParameter();
parameter.Orders = orders;
parameter.Offset = offset;
parameter.Count = count;
bool isListField = (null != fields) && (fields.Length > 0) && (fields[0] is ListField);
List <T> result = new List <T>();
string[] actualFields = null;
if (isListField)
{
actualFields = new string[fields.Length];
for (int i = 0; i < actualFields.Length; i++)
{
actualFields[i] = (fields[i] as ListField).FieldName;
}
}
if (AssertContinueSelecting(typedEntity, parameter, (isListField ? actualFields : (fields as string[])), out args))
{
ObjectManager oa = string.IsNullOrEmpty(tablename) ? _d1.GetObjectManager(typeof(T)) : _d1.GetObjectManager(tablename);
if (isListField)
{
result = oa.MyList <T>(conn, condition, orders, offset, count, (fields as ListField[]));
}
else
{
result = oa.MyList <T>(conn, condition, orders, offset, count, (fields as string[]));
}
}
else if (null != args.ContextData &&
!ReferenceEquals(parameter, args.ContextData))
{
result = (args.ContextData as List <T>) ?? new List <T>();
}
return(result);
}
