Nested object

[GrazDeKa]

Hi
if I have a class

public Class1
{
string prop1{get; set;}
string prop2{get; set;}
Class2 prop3{get; set;}
}

public Class2
{
string prop1{get; set;}
string prop2{get; set;}
}

Then I set the mapper as:

mapper = new ModelToTableMapper();
mapper.AddMapping(model => model.prop1, column[0]);
mapper.AddMapping(model => model.prop2, column[1]);
mapper.AddMapping(model => model.prop3.prop1, column[2]);
mapper.AddMapping(model => model.prop3.prop2, column[3]);

and the sqldependency as
dependency = new SqlTableDependency(ConnectionString, TableName, mapper: mapper);

With this code it tracks only the changes in the simple properties of Class1 (prop1, prop2) while it doesn't track changes of the properties of class 2 (prop3.prop1, prop3.prop2).
I think this is related to the nested object. Is there a way to avoid this?