c# itextsharp datamatrix DLLHost and DCOM in .net C#

Integrate datamatrix 2d barcode in .net C# DLLHost and DCOM

namespace 13.BobsMoviesMVC.Models { public partial class Film { public bool IsValid() { if (this.GetErrors().Count == 0) { return true; } else { return false; } } public List<Error> GetErrors() { List<Error> Errors = new List<Error>(); if (String.IsNullOrEmpty(this.Title)) { Errors.Add( new Error { Description = "Title cannot be blank", Property = "Title" }); } return Errors; } } }

ops$tkyte%ORA11GR2> create table t1 2 as 3 select * from big_table.big_table 4 where 1=0; Table created. ops$tkyte%ORA11GR2> create table t2 2 as 3 select * from big_table.big_table 4 where 1=0; Table created. And now we are ready to perform the first method of inserting the records, using a single SQL statement. We start by calling RUNSTATS_PKG.RS_START: ops$tkyte%ORA11GR2> exec runstats_pkg.rs_start; PL/SQL procedure successfully completed. ops$tkyte%ORA11GR2> insert into t1 2 select * 3 from big_table.big_table 4 where rownum <= 1000000; 1000000 rows created. ops$tkyte%ORA11GR2> commit; Commit complete. Now we are ready to perform the second method, row by row insertion of data: ops$tkyte%ORA11GR2> exec runstats_pkg.rs_middle; PL/SQL procedure successfully completed. ops$tkyte%ORA11GR2> begin 2 for x in ( select * 3 from big_table.big_table 4 where rownum <= 1000000 ) 5 loop 6 insert into t2 values X; 7 end loop; 8 commit; 9 end; 10 / PL/SQL procedure successfully completed. And finally, we ll generate the report: ops$tkyte%ORA11GR2> exec runstats_pkg.rs_stop(1000000) Run1 ran in 411 cpu hsecs Run2 ran in 6192 cpu hsecs run 1 ran in 6.64% of the time Name STAT...opened cursors cumulati STAT...execute count Run1 213 213 Run2 1,000,365 1,000,372 Diff 1,000,152 1,000,159

It is fantastic to see Microsoft not reinventing the wheel and choosing to integrate and provide support for jQuery. jQuery is a lightweight framework, and you would be crazy not to use it in your own projects.

namespace CloudTableStorageService_WebRole.CloudTableStrorageDataEntity { using Microsoft.Samples.ServiceHosting.StorageClient; public interface ICloudEntity { string GetPartitionKey(); string GetRowKey(); ICloudEntity GetDepenencyEntity(); void SetDependencyEntity(ICloudEntity entity); List<ICloudEntity> DependencyType(); } }

With the buttons looking good and the markup looking the way it should on the back of the flashcard, I thought I had a complete application. I certainly felt like I had created a useful tool for learning vocabulary words. There was something I had been ignoring from the very beginning though: how does anybody figure out how the darn thing works No problem, I thought. I ll just write an FAQ and slap it onto my settings page! After I wrote a 2,000 word FAQ for my dinky little flashcard application, I realized this may not be the way to go. Besides, I was coming to realize, the truth is that if users need to go to a FAQ, I ve already lost. Why should anybody ever have to go to one of those This is the iPhone! Things should be totally intuitive! Unfortunately, there are some unintuitive things about Flash of Genius. At the core of the application is an algorithm that determines which flashcards the user sees and when the user sees them. If the user gets a particular word wrong, that word will appear again in the near future, and so the user will get drilled on it until the definition sticks. If a user gets a word like placid right but then gets placate wrong, a lesson card pops up comparing the two words, emphasizing that they both come from the same root, plac. There are some more sophisticated AI elements to the algorithm too, but I won t describe them here. The whole idea behind Flash of Genius is that the users shouldn t have to worry about what cards they study, organizing them into virtual stacks, or any of that sort of thing. They just need to trust the algorithm that governs study mode. While that may make perfect sense to a programmer, it s pretty foreign to most nontechnical people. When I was showing early prototypes to people during development, I was surprised to see how few people even knew what algorithm meant. My solution to this wasn t novel or subtle, but it did get the job done. I just showed a UIAlertView every time something potentially confusing happened for the first time. For example, the first time a checkmark or X button is tapped in study mode, a UIAlertView pops up to let the users know that Flash of Genius is going to take care of them (see Figure 7-11).

CHAPTER 8 USING THE ASP.NET AJAX CONTROL TOOLKIT (PART 2)

This class simply implements IDataPortalServer: Public Class TransactionalDataPortal Implements IDataPortalServer This ensures that it implements the four data methods. Each of these methods follows the same structure: create a TransactionScope object and delegate the call to an instance of SimpleDataPortal. For instance, here s the Create() method: Public Function Create( _ ByVal objectType As System.Type, _ ByVal criteria As Object, _ ByVal context As Server.DataPortalContext) As Server.DataPortalResult _ Implements Server.IDataPortalServer.Create Dim result As DataPortalResult Using tr As New TransactionScope Dim portal As New SimpleDataPortal result = portal.Create(objectType, criteria, context) tr.Complete() End Using Return result End Function The first thing this method does is create a TransactionScope object from the System. Transactions namespace. Just the act of instantiating such an object creates a transactional context. It is not a distributed transactional context, but a lighter-weight context. If the business object interacts with more than one database, however, it will automatically become a distributed transaction. The Using block here ensures both that the TransactionScope object will be properly disposed, and perhaps more importantly, that the transaction will be committed or rolled back as appropriate. If the object is disposed before the Complete() method is called, then the transaction is rolled back. Again, this model relies on the underlying assumption that the business code will throw an exception to indicate failure. This is the same model that is used by ServicedDataPortal, and really by the data portal infrastructure overall. Within the Using block, the code creates an instance of SimpleDataPortal and delegates the call to that object, which in turn calls the business object. Assuming no exception is thrown by the business object, the Complete() method is called to indicate that the transaction should be committed. The other three methods are implemented in the same manner. Regardless of which transactional model is used, all calls end up being handled by a SimpleDataPortal object, which implements the message router concept.

So far in our discussion of parameters we ve used positional parameters, which, as you ll remember, means that the position of each actual parameter matches the position of the corresponding formal parameter. Starting with C# 4.0, you can list the actual parameters in your method invocation in any order, as long as you explicitly specify the names of the parameters. The details are the following: Nothing changes in the declaration of the method. The formal parameters already have names. In the method invocation, however, you use the formal parameter name, followed by a colon, in front of the actual parameter value or expression, as shown in the following method invocation. Here a, b, and c are the names of the three formal parameters of method Calc: Actual parameter values

pinvAttr ::= /* EMPTY */ | pinvAttr nomangle | pinvAttr ansi | pinvAttr unicode | pinvAttr autochar | pinvAttr lasterr | pinvAttr winapi | pinvAttr cdecl | pinvAttr stdcall | pinvAttr thiscall | pinvAttr fastcall | pinvAttr bestfit : on | pinvAttr bestfit : off | pinvAttr charmaperror : on | pinvAttr charmaperror : off | pinvAttr flags ( int32 )