For some reason an example for nhibernate will not work...keep coming up with this error

Line 21: NHibernate.Cfg.Configuration config = new NHibernate.Cfg.Configuration();
Line 22: // add our assembly
Line 23: config.AddAssembly("ContactDomain");
Line 24: // setup nhibernate session
Line 25: NHibernate.ISessionFactory factory = config.BuildSessionFactory();


Source File: C:\Documents and Settings\bdavis\My Documents\Visual Studio 2008\Projects\ContactDomain\ContactManager\Default.aspx.cs Line: 23

Stack Trace:


[InvalidOperationException: Could not find the dialect in the configuration]
NHibernate.Dialect.Dialect.GetDialect(IDictionary`2 props) +186
NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument doc) +163

[MappingException: Could not compile the mapping document: ContactDomain.Contact.hbm.xml]
NHibernate.Cfg.Configuration.LogAndThrow(Exception exception) +109
NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument doc) +372
NHibernate.Cfg.Configuration.ProcessMappingsQueue() +51
NHibernate.Cfg.Configuration.AddDocumentThroughQueue(NamedXmlDocument document) +53
NHibernate.Cfg.Configuration.AddXmlReader(XmlReader hbmReader, String name) +72
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream, String name) +159
NHibernate.Cfg.Configuration.AddResource(String path, Assembly assembly) +268
NHibernate.Cfg.Configuration.AddAssembly(Assembly assembly) +239
NHibernate.Cfg.Configuration.AddAssembly(String assemblyName) +214
ContactManager._Default.btnSaveContact_Click(Object sender, EventArgs e) in C:\Documents and Settings\bdavis\My Documents\Visual Studio 2008\Projects\ContactDomain\ContactManager\Default.aspx.cs:23
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565


<configSections>
<section
name="nhibernate" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
/>
</configSections>

<nhibernate>
<add
key="hibernate.connection.provider"
value="NHibernate.Connection.DriverConnectionProvider"
/>
<add
key="hibernate.dialect"
value="NHibernate.Dialect.MsSql2000Dialect"
/>
<add
key="hibernate.connection.driver_class"
value="NHibernate.Driver.SqlClientDriver"
/>
<add
key="hibernate.connection.connection_string"
value="Data Source=d10401;Initial Catalog=Contacts;Persist Security Info=True;User ID=bdavis;Password=b0ldtwo;"
/>
</nhibernate>


// setup nhibernate configuration
NHibernate.Cfg.Configuration config = new NHibernate.Cfg.Configuration();
// add our assembly
config.AddAssembly("ContactDomain");
// setup nhibernate session
NHibernate.ISessionFactory factory = config.BuildSessionFactory();
NHibernate.ISession session = factory.OpenSession();
// start nhibernate transaction
NHibernate.ITransaction transaction = session.BeginTransaction();

// create contact
Contact contact = new Contact();
contact.FirstName = txtFirstName.Text;
contact.LastName = txtLastName.Text;
contact.Email = txtEmail.Text;
contact.Telephone = txtTelephone.Text;

// Tell NHibernate that this object should be saved
session.Save(contact);

// commit all of the changes to the DB and close the ISession
transaction.Commit();
session.Close();

Hi there,

I had the same problem before, did you add reference to the MySql.Data dll ? Make sure u go into the property of that reference and make copy local = "True". And about your dialect config, im not sure if this is going to solve it, but check out my config and see if u can use it this way:



Let me know if this works, im new to this too so it might not be the same issue, but I try to help!

Good luck

Vishan S Gill

Thanks adding the proxy lines in did the trick...the changes must have occured after the book i'm looking at was printed