c 2005 business objects second edition

... classes do not implement ICloneable; they provide a protected copy constructor that enables derived classes to copy the base class parts Leaf classes, which should all be sealed, implement ICloneable ... case:public class MyClass // Redefine MagicMethod for this class public new void MagicMethod() { // details elided } } This kind of practice leads to a lot of developer confusion If you call ... function on the same object, you expect the same code to execute The fact that changing the reference, the label, that you use to call the function changes the behavior feels very wrong It’s inconsistent...

Ngày tải lên: 12/08/2014, 16:21

... Public Shared Function GetCustomer(ByVal customerId As String) As Customer Return DataPortal.Fetch(Of Customer)(New Criteria(customerId)) End Function The actual data access code will be contained ... this distinction, BusinessBase includes a method that can be called to indicate that the object is a child object: MarkAsChild() By default, business objects are assumed to be root objects, unless ... of business objects will be created Given an Invoice object with a collection of LineItem objects, BusinessListBase will bethe base for creating that collection: <Serializable()> _ Public...

Ngày tải lên: 12/08/2014, 16:21

... Invoice root object will have a LineItems collec-tion that contains LineItem objects, so the LineItems colleccollec-tion is itself a child object However, collection objects can also be root objects ... more complicated Undoingall the child objects isn’t too hard, since the collection can cascade the request to each childobject At the collection level, however, an undo means restoring any objects ... Invoice object with a collection of LineItemobjects If BeginEdit() is called on the Invoice, then its edit level is 1 Since it cascades that call down to its child collection, the collection...

Ngày tải lên: 12/08/2014, 16:21

... exception could occur while calling the server The most likely cause of such an exception is that an exception occurred in the business logic running on the server, though exceptions canalso occur ... Object) As T Return DirectCast(Create(GetType(T), criteria), T) End Function Public Function Create(Of T)() As T Return DirectCast(Create(GetType(T), Nothing), T) End Function Public Function Create(ByVal ... ex) mInnerStackTrace = ex.StackTrace End Sub Then in the StackTrace property of CallMethodException, the stack trace for theCallMethodException itself is combined with the stack trace from the...

Ngày tải lên: 12/08/2014, 16:21

... reflected collec-in the origcollec-inal collection There’s some work collec-involved collec-in keepcollec-ing the view and collection collec-in sync.Also remember that collections may raise ListChanged ... Enumerator ObjectCurrent Returns a reference to the current child object in the collection MoveNext() Moves to the next child object in the collection, making that the current object Reset() Moves ... Property Count() As Integer _ Implements System.Collections.ICollection.Count, _ System.Collections.Generic.ICollection(Of T).Count Get Return mList.Count End Get End Property This technique is...

Ngày tải lên: 12/08/2014, 16:21

... configuration Data access runs locally or on an application server, without changing business code Object persistence Clearly defined methods contain all data access code.Optimized data access Objects only ... subclassing BusinessBase, all these objects gain the full set of business object capabilitiesimplemented in Chapters 3 through 5 The model also includes objects that are collections of business objects, ... procedures by designing them to make iteasy for the data access code in each business object to populate the objects This isn’t essential—youcould write more complex code in the business objects—but...

Ngày tải lên: 12/08/2014, 16:21

... Each Project object contains a collection of ProjectResource child objects When a Projectobject is created, an empty child collection is also created by calling the appropriate factory method C ... UI consist-ing of a DataGridView control that displays a collection of Contact objects If the root object is acollection of child Contact objects, the UI developer can simply bind the collection ... object Read-Only Collections of Objects Applications commonly retrieve read-only collections of objects The CSLA NET frameworkincludes the ReadOnlyListBase class to help create read-only collections...

Ngày tải lên: 12/08/2014, 16:21

... in Chapter 6: Private Overloads Sub DataPortal_Fetch(ByVal criteria As Criteria) Using cn As New SqlConnection(Database.SecurityConnection) cn.Open() Using cm As SqlCommand = cn.CreateCommand cm.CommandText ... that this method copies the object and all child objects it contains In this case, it copies the Roles object and all the Role objects in the collection Then the copy of the object is saved: mRoles ... the user control’s Close() method is called: Me.Close()The Save() call and closing of the user control (or rebinding of the BindingSource control) occurs in a Try block If an exception occurs during...

Ngày tải lên: 12/08/2014, 16:21

... ProjectResource objects to the collection I’ll discuss adding a new child object shortly.dynami-The SelectObject event handler returns the collection of ProjectResource objects for theProject: ... IfSession("currentObject") = businessObject Catch ex As System.Security.SecurityException Response.Redirect("ProjectList.aspx") End Try End If Return CType(businessObject, Project) End Function ... TypeOf businessObject Is ProjectList Then businessObject = ProjectTracker.Library.ProjectList.GetProjectList Session("currentObject") = businessObject End If Return CType(businessObject,...

Ngày tải lên: 12/08/2014, 16:21

... portal functionality, 72client-side cache invalidating client-side cache, 453ClientContext collection DataPortalContext class, 171ClientContext property ApplicationContext class, 234, 235ClientCulture ... transaction, 220business objects, life cycle of, 365–377adding/editing root objects, 372–373adding/editing/deleting child objects, 373–374creating child objects, 367–369 creating root objects, 366deleting ... base classes business class structure, 378–405business framework base classes, 60complete code for, 94 Criteria class, 381–383CslaDataSource class, 309–311CslaDataSourceDesigner class, 314CslaDataSourceView...

Ngày tải lên: 12/08/2014, 16:21

... marketing action we want to achieve? • Is it necessary to motivate the prospect? Let necessity — not history — guide your answers Deciding how you’ll measure success Small businesses are critical of ... con-cept is created and define your measurement standard in your creative brief Trang 5Specifying your specificationsKnow the specifications of your job before you start producing it — and cially ... expertise to plan, duce, and place ads pro- Establish your agency with media organizations to confirm that youqualify for the discount offered to recognized agencies Check with pub-lications and stations...

Ngày tải lên: 21/06/2014, 11:20

... action), within weeks you can count the responses to learnthe effectiveness of your direct mail effort To increase your chances for success, consider that the most successfuldirect mailers all rely ... them Trang 11Direct mail success factorsDirect mailers are among the easiest of all marketing communications tomonitor for success With each mailing, you know exactly how many piecesyou’re sending ... transaction that occurs over a distance and directly between the buyer and the seller Mail order and e-commerceare the primary vehicles for direct sales (See Chapter 16 for information on e-commerce.)...

Ngày tải lên: 21/06/2014, 11:20

... you would describe in person if you could be there yourself  Avoid technical jargon, long feature descriptions, and clichés Clichés would include committed to excellence and dedicated to your ... quent customer club, to request automatic delivery of future orders, or to fre-receive a special offer on a future purchase (called a bounce-back offer because it aims to bounce a customer back ... marketing service such as Constant Contact(visit www.constantcontact.comfor information and a trial offer)  Include a link to your Web site If your newsletter refers to a specific part of your...

Ngày tải lên: 21/06/2014, 11:20

... you compile your media contact list, count on the resources of your locallibrary The reference desk should have copies of the Bacon’s Publicity Checker and Bacon’s Radio/TV Directory, which provide ... with company background information (see “Boilerplate information” in the preceding section) • Close your e-mail with your contact information, in this format: CONTACT INFORMATION: Contact Person’s ... vehicle, often accompanied by a unique angle, no offer for interviews, or no brief note written to an established other ways to customize the story editorial contact Contain crisp, clear, accurate,...

Ngày tải lên: 21/06/2014, 11:20

... the circle, c Changing the conversion from implicit to explicit only forces users to add a cast to the call: Circle c = new Circle ( new PointF ( 3.0f , 0 ), 5.0f ); Flatten(( Ellipse )c); The ... it clearer when new objects are created (Veteran C++ programmers should note that C# does not call constructors for implicit or explicit con-versions You create new objects only when you explicitly ... works because a circle is a specific type of shape When you create a class, certain conver-sions are allowed automatically Any object can be substituted for an instance of System.Object, the root...

Ngày tải lên: 12/08/2014, 16:21

... Resource Cleanup ❘91 Trang 3{ SqlConnection myConnection = null; SqlCommand mySqlCommand = null; try { myConnection = new SqlConnection (connString); mySqlCommand = new SqlCommand (commandString, ... lurks! SqlConnection myConnection = new SqlConnection (connString); SqlCommand mySqlCommand = new SqlCommand (commandString, myConnection); using (myConnection as IDisposable ) using (mySqlCommand ... nuance to freeing disposable objects Some types sup-port both a Dispose method and a Close method to free resources SqlConnection is one of those classes You could close SqlConnection like myConnection...

Ngày tải lên: 12/08/2014, 16:21

... 17generic interfaces such that they can be treated covariantly, or contravari-antly Let’s discuss generic covariance first, and then we’ll move on to contravariance This method can be called with ... close to the center of the two extremes, but err toward the side of fewer, larger transactions Item 29: Support Generic Covariance and Contravariance Type variance, and specifically, covariance ... draconian fashion Generics were always treated invariantly Generic types had to have an exact match However, in C# 4.0, you can now decorate Item 29: Support Generic Covariance and Contravariance...

Ngày tải lên: 12/08/2014, 16:21

... (without clicking it) Right-click Microsoft PowerPoint, and choose Copy Right-click on the desktop and choose Paste Double-click the shortcut to open PowerPoint Of course, if you don’t like shortcuts, ... can then go directly to the chapters that contain the topics you need How to Contact the Author Please contact me if you don’t understand the material in the book or find any errors You can contact ... However, because of the possibility of human or mechanical error by our sources, McGraw-Hill/Osborne, or others, McGraw-Hill/Osborne does not guarantee the accuracy, adequacy, or completeness...

Ngày tải lên: 26/10/2014, 20:26

... to school A) live B) left C) had lived D) lived Correct Click anywhere to Correct Click anywhere to continue continue Incorrect Click anywhere to Incorrect Click anywhere to continue continue ... have a computer => I wish I a computer A) having B) has C) had D) have Correct Click anywhere to Correct Click anywhere to continue continue Incorrect Click anywhere to Incorrect Click anywhere ... hometown A) are B) were C) was D) bed Correct Click anywhere to Correct Click anywhere to continue continue Incorrect Click anywhere to Incorrect Click anywhere to continue continue You must answer...

Ngày tải lên: 09/07/2015, 13:45

... Sep 24 18:43:13 2005 clean 2 0 1473528a - correct 0.1994 Major Minor RaidDevice State active sync 0 active sync 1 22 1 active sync [root@fedora4 ~]# mdadm examine /dev/hdc1 /dev/hdc1: /dev/hda1 ... RaidDevice State active sync active sync active sync /dev/hdc1 /dev/hda1 /dev/hdc1 To be able to boot from the second disk if the first fails, GRUB has to be installed on both disks This cab be ... Creation Time : Sat Sep 24 19:52:04 2005 Raid Level : raid1 Raid Devices : Total Devices : Preferred Minor : Update Time State Active Devices Working Devices Failed Devices Spare Devices Checksum...

Ngày tải lên: 18/09/2012, 10:11