No, you are not. The unhaddins version has something for this called AllowOutsidePersistentCall but I vaguely use it.
The thing is that you should start looking other patterns for your presentation code. Take advantage of databinding in winforms and use the supervising controller pattern along with viewmodels becouse domain objects are not always the right choice for the view 2010/10/14, Alessandro C. <[email protected]>: > Using a short live ConvesationScope you have to create a > ConversationalScope object everytime you access a lazy loaded property > or collection. This is very annoying. > > example: > Class class1 > { > private Fiber f; > public IConversation conversation = new Conversation(); > > public void LoadFirstFiber() > { > f = Fiber.Find(1); > } > > public void DisplayFiberComponentName() > { > using (new ConversationalScope(conversation)) // this is > annoying > { > textbox1.Text = f.Component.Name; > } > } > } > > am I wrong? > > > On 14 Ott, 09:35, "Alessandro C." <[email protected]> > wrote: >> Ok. >> Your suggestion is: >> One instance of Conversation per Form but not a ConversationScope >> instance per Form. >> I should create one instance of ConversationalScope when I need to >> make some operation on the database. This operation could be the >> simple save of one entity or a complex business operations that >> involve more methods in different classes. >> This is the same rule as the Transaction, isn't it? >> >> So I can replace the TransactionScope with ConversationalScope? >> >> Thanks again. >> >> On 14 Ott, 00:14, José F. Romaniello <[email protected]> wrote: >> >> >> >> > it was just pseudocode..-.-.- >> >> > -Conversation = ScopedConversation. >> > -ConversationACtion = ConversationScope. >> >> > 2010/10/13 Alessandro C. <[email protected]> >> >> > > I don't know ConversationAction, I have to read about it, but I guess >> > > that all the three methods are inside the same transaction. I that >> > > true? >> >> > > On 13 Ott, 23:37, José F. Romaniello <[email protected]> wrote: >> > > > Alessandro I am glad that my words help you, but let me help you a >> > > > little >> > > > more. >> >> > > > That is a time bomb. >> >> > > > Conversation could have a long live, and wait for user interactions, >> > > > a >> > > > ConversationScope is another thing and it should be short-lived, >> > > > becouse >> > > it >> > > > often involves a db transaction. >> >> > > > Maybe the names of the classes are confusing, you need to think in >> > > > two >> > > > differents things: >> >> > > > -Conversation >> > > > -ConversationAction >> >> > > > what hapens if you write this kind of code: >> >> > > > public class YourClass >> > > > { >> > > > public IConversation conversation = new Conversation(); >> >> > > > public void SomeMethod() >> > > > { >> > > > using(new ConversationAction(conversation)) >> > > > { >> > > > SomeMethodInThisClass(); >> > > > module.SomeMethodInOtherModule(); >> > > > service.SomeMethodInOtherService(); >> > > > } >> > > > } >> >> > > > assuming that each of the afore mentioned methods does something >> > > > with the >> > > > db. >> > > > What problem do you find with this usage? >> >> > > > } >> >> > > > 2010/10/13 Alessandro C. <[email protected]> >> >> > > > > Josè thanks for the answers, you point me in the right direction >> > > > > (I >> > > > > hope). >> >> > > > > May be I found a solution: >> >> > > > > If I create a ConversationalScope object in the form load (and >> > > > > dispose >> > > > > it when the form closes) everything seems to be ok. >> > > > > Of course If I need I can create a new ConversationalScope object >> > > > > for >> > > > > transaction pourpose. Following the example. >> >> > > > > private void Form1_Load(object sender, EventArgs e) >> > > > > { >> > > > > conversational = new >> > > > > ConversationalScope(conversation); >> > > > > dataGridView1.DataSource = Fiber.FindAll(); >> > > > > } >> >> > > > > On 13 Ott, 22:57, José F. Romaniello <[email protected]> >> > > > > wrote: >> > > > > > You are wrong, you don't have to pass the conversation from >> > > > > > class to >> > > > > class, >> > > > > > and you don't need to surround every database call. >> >> > > > > > Read the documentation: >> >> > > > > > > SessionScopes are stored in a ThreadStatic stack >> >> > > > > > You must be configuring something wrong. >> >> > > > > > 2010/10/13 Alessandro C. <[email protected]> >> >> > > > > > > As far as I know you have 2 options: >> > > > > > > or pass the conversation object from class to class >> > > > > > > or surround every call to the database with new >> > > > > > > ConversationalScope(conversation). >> >> > > > > > > Just to show I built a simple project (following there is a >> > > > > > > part), >> > > if >> > > > > > > you uncomment the (new ConversationalScode....) it works >> > > > > > > otherwise >> > > you >> > > > > > > get a lazy error. >> > > > > > > This is only a simple example, in the real world you often >> > > > > > > have a >> > > > > > > database call inside a class of the class of the class etc, >> > > > > > > ect. >> >> > > > > > > public partial class Form1 : Form >> > > > > > > { >> > > > > > > protected IScopeConversation conversation = new >> > > > > > > ScopedConversation(ConversationFlushMode.OnClose); >> > > > > > > public Form1() >> > > > > > > { >> > > > > > > InitializeComponent(); >> > > > > > > } >> > > > > > > private void Form1_Load(object sender, EventArgs e) >> > > > > > > { >> > > > > > > dataGridView1.DataSource = Fiber.FindAll(); >> > > > > > > } >> > > > > > > private void button1_Click(object sender, EventArgs e) >> > > > > > > { >> > > > > > > if (dataGridView1.SelectedRows.Count == 0) >> > > > > > > return; >> >> > > > > > > //using (new ConversationalScope(conversation)) >> > > > > > > //{ >> > > > > > > int id = >> >> > > Convert.ToInt32(dataGridView1.SelectedRows[0].Cells["FiberId"].Value); >> > > > > > > Fiber f = Fiber.Find(id); >> >> > > > > > > label1.Text = >> > > > > > > f.CompositionFibers[0].Percentage.ToString(); >> > > > > > > //} >> > > > > > > } >> >> > > > > > > On 11 Ott, 20:10, José F. Romaniello <[email protected]> >> > > wrote: >> > > > > > > > I am not so familiar with the castle impl. because i use the >> > > > > unhaddins >> > > > > > > > version... But the pattern is the same and i dont think you >> > > > > > > > need >> > > to >> > > > > > > > pass the iconversation all over your code. >> >> > > > > > > > 2010/10/11, Alessandro C. <[email protected]>: >> >> > > > > > > > > Following the example of Markus >> >> > >http://using.castleproject.org/display/AR/Using+the+Conversation+Pattern >> >> > > > > > > > > I tried to change my application from single global >> > > > > > > > > session to >> > > a >> > > > > > > > > session per conversation but every time you need to hit >> > > > > > > > > the >> > > > > database >> > > > > > > > > you have to surround the operation with >> > > > > > > > > using (new ConversationalScope(conversation)) >> > > > > > > > > { >> > > > > > > > > } >> >> > > > > > > > > more, if you have database access outside the form, for >> > > > > > > > > example >> > > a >> > > > > > > > > method on a helper class, you have to pass the >> > > > > > > > > conversation to >> > > the >> > > > > > > > > class if you want that method use the same conversation as >> > > > > > > > > the >> > > > > form. >> >> > > > > > > > > Is that correct or there is a way to share the >> > > > > > > > > conversation for >> > > the >> > > > > > > > > entire form thread? >> >> > > > > > > > > Thanks, >> > > > > > > > > --Alessandro >> >> > > > > > > > > -- >> > > > > > > > > You received this message because you are subscribed to >> > > > > > > > > the >> > > Google >> > > > > > > Groups >> > > > > > > > > "Castle Project Users" group. >> > > > > > > > > To post to this group, send email to >> > > > > > > [email protected]. >> > > > > > > > > To unsubscribe from this group, send email to >> > > > > > > > > [email protected]<castle-project-users%2bun[email protected]> >> > > <castle-project-users%2bun[email protected]> >> > > > > <castle-project-users%2bun[email protected]> >> > > > > > > . >> > > > > > > > > For more options, visit this group at >> > > > > > > > >http://groups.google.com/group/castle-project-users?hl=en. >> >> > > > > > > > -- >> > > > > > > > Enviado desde mi dispositivo móvil- Nascondi testo citato >> >> > > > > > > > - Mostra testo citato - >> >> > > > > > > -- >> > > > > > > You received this message because you are subscribed to the >> > > > > > > Google >> > > > > Groups >> > > > > > > "Castle Project Users" group. >> > > > > > > To post to this group, send email to >> > > > > [email protected] >> > > > > > > . >> > > > > > > To unsubscribe from this group, send email to >> > > > > > > [email protected]<castle-project-users%2bun[email protected]> >> > > <castle-project-users%2bun[email protected]> >> > > > > <castle-project-users%2bun[email protected]> >> > > > > > > . >> > > > > > > For more options, visit this group at >> > > > > > >http://groups.google.com/group/castle-project-users?hl=en.-Nascondi >> > > > > testo citato >> >> > > > > > - Mostra testo citato - >> >> > > > > -- >> > > > > You received this message because you are subscribed to the Google >> > > Groups >> > > > > "Castle Project Users" group. >> > > > > To post to this group, send email to >> > > [email protected] >> > > > > . >> > > > > To unsubscribe from this group, send email to >> > > > > [email protected]<castle-project-users%2bun[email protected]> >> > > <castle-project-users%2bun[email protected]> >> > > > > . >> > > > > For more options, visit this group at >> > > > >http://groups.google.com/group/castle-project-users?hl=en.-Nascondi >> > > testo citato >> >> > > > - Mostra testo citato - >> >> > > -- >> > > You received this message because you are subscribed to the Google >> > > Groups >> > > "Castle Project Users" group. >> > > To post to this group, send email to >> > > [email protected] >> > > . >> > > To unsubscribe from this group, send email to >> > > [email protected]<castle-project-users%2bun[email protected]> >> > > . >> > > For more options, visit this group at >> > >http://groups.google.com/group/castle-project-users?hl=en.-Nascondi >> > > testo citato >> >> > - Mostra testo citato -- Nascondi testo citato >> >> - Mostra testo citato - > > -- > You received this message because you are subscribed to the Google Groups > "Castle Project Users" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/castle-project-users?hl=en. > > -- Enviado desde mi dispositivo móvil -- You received this message because you are subscribed to the Google Groups "Castle Project Users" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/castle-project-users?hl=en.
