Gist for blog post: http://www.mindbodysouldeveloper.com/2016/01/27/c-sharp-how-to-replace-dictionary-with-factory-method/

Replacing-Dictionary-With-Factory-Method-Implementation.cs

public DataTable GetTopLevel(DateTime valueDate, string branch)
{       
    var parameters = SetupStoredProcParameters(Level.Top, valueDate, branch);
    
    const string storedProc = "GetTopLevel";
    var result = storedProc.ToDataTable(dbConnection, parameters);    
    
    return result;    
}

public DataTable GetFirstLevel(DateTime valuDate, string branch, string levelName)
{       
    var parameters = SetupStoredProcParameters(Level.Top, valueDate, branch, levelName);
 
    const string storedProc = "GetLevelOne";   
    var result = storedProc.ToDataTable(dbConnection, parameters); 
    
    return result;    
}

public DataTable GetSecondLevel(DateTime valueDate, 
                                string branch, 
                                string levelName, 
                                string subLevelName)
{   
    var parameters = SetupStoredProcParameters(Level.Top, valueDate, branch, levelName, subLevel);   

    const string storedProc = "GetLevelTwo";    
    var result = storedProc.ToDataTable(dbConnection, parameters); 
    
    return result;    
}