Alec Tang

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Object references between two different object scopes are not allowed

Posted by Alec on Tue, 07 Apr 2009, in ASP.NET C#   Telerik   

When using ORM, should always keep in mind that only one object scope is used. The example came with the package doesn't really explain this well. Should always declare a page_init call which declares the object scope and store it in session and try to keep using it for any business operations:

private IObjectScope cachedScope;
protected void Page_Init(object sender, EventArgs e) {
           if (this.Session["objectScope"] != null) {
                      cachedScope = (IObjectScope)this.Session["objectScope"];
            } else {
                      cachedScope = ObjectScopeProvider.GetNewObjectScope();
                      this.Session["objectScope"] = cachedScope;
             }
   }
There's one good example here: http://www.telerik.com/community/code-library/orm/general/best-practices-in-web-development-with-openaccess.aspx

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