c# display pdf in browser

how to view pdf file in asp.net c#

c# pdf reader free

pdf full ocr version windows 7, pdf how to new open tab, pdf button click file viewer, pdf android app ocr xp, pdf file free one software,

c# pdf free, ghostscriptsharp pdf to image c#, how to save pdf file in c# windows application, open pdf file in c#, pdf to word c# open source, free pdf viewer c# .net, itextsharp add annotation to existing pdf c#, convert pdf to word c# code, pdf to word c#, convert pdf to excel using c#, pdf to word c# open source, pdf to jpg c# open source, convert pdf to word c#, c# code to save excel file as pdf, pdf viewer c# open source

asp.net mvc 5 pdf, asp.net mvc pdf viewer free, mvc pdf, azure pdf, pdf reader in asp.net c#, asp.net print pdf without preview, print pdf file in asp.net c#, microsoft azure read pdf, asp.net pdf viewer annotation, how to read pdf file in asp.net using c#

opening pdf file in asp.net c#,
how to upload and view pdf file in asp net c#,
open pdf file in iframe in asp.net c#,
how to open pdf file using itextsharp in c#,
open pdf form itextsharp c#,
pdf viewer in asp.net c#,
adobe pdf reader c#,
open byte array pdf in browser c#,
c# : winform : pdf viewer,

Lazy enumeration has some benefits, particularly if you are dealing with very large quantities of information. Lazy enumeration makes it possible to start processing data as soon as the first item becomes available. Example 7-34 illustrates this. Its GetAllFilesInDirectory returns an enumeration that returns all the files in a folder, including all those in any subdirectories. The Main method here uses this to enumerate all the files on the C: drive. (In fact, the Directory class can save us from writing all this code there s an overload of Directory.EnumerateFiles that will do a lazy, recursive search for you. But writing our own version is a good way to see how lazy enumeration works.)

class Program { static IEnumerable<string> GetAllFilesInDirectory(string directoryPath) { IEnumerable<string> files = null; IEnumerable<string> subdirectories = null; try {

}

In 2005 and 2006 alone, there were several incidents in which major organizations with reputable brands had significant amounts of sensitive data lost or stolen Bank of America, ChoicePoint, and the Veteran s Administration (VA) were among them A list of data breaches since 2005 is available on the Privacy Rights Clearinghouse web page (wwwprivacyrights org/ar/ChronDataBreacheshtm) In Bank of America s case, backup data tapes with sensitive information for over one million customers were lost as they were being transported from one location to another (CNN/Money 2005; Lemos 2005) Bank of America provided one year of free credit monitoring services to all affected customers.

pdfsharp c# example, java data matrix reader, excel pdf417 generator, ssrs upc-a, convert pdf to image c# pdfsharp, asp.net qr code

} catch (UnauthorizedAccessException) { Console.WriteLine("No permission to access " + directoryPath); } if (files != null) { foreach (string file in files) { yield return file; } } if (subdirectories != null) { foreach (string subdirectory in subdirectories) { foreach (string file in GetAllFilesInDirectory(subdirectory)) { yield return file; } } }

files = Directory.EnumerateFiles(directoryPath); subdirectories = Directory.EnumerateDirectories(directoryPath);

}

A block s definition used by the PRE is an XML file. XML files can be edited in any text editor, such as Notepad. However, Notepad doesn t help you with the trickier parts of writing XML documents. In particular, it doesn t validate the XML document to prevent

static void Main(string[] args) { foreach (string file in GetAllFilesInDirectory(@"c:\")) { Console.WriteLine(file); } }

ChoicePoint, one of the largest data aggregators in the United States, was scammed by fraudsters who set up approximately 50 impostor accounts and used them to query ChoicePoint s database for social security numbers, dates of birth, and other sensitive information for 163,000 people (Hines 2005; PRC ChoicePoint 2005) ChoicePoint was fined $10 million by the Federal Trade Commission (FTC), and was forced to set up a $5 million fund to help identity theft victims (Sullivan 2006) In the case of the VA, an employee who worked for Unisys, one of the VA s subcontractors, took home computer equipment that had personal information for 265 million veterans stored on it, and the employee s home was burglarized The employee, who was not authorized to take the computer equipment home, was dismissed, and the employee s supervisor resigned.

If you run this, you ll find it starts printing out filenames immediately, even though it clearly won t have had time to discover every single file on the hard disk. (That s why we re not using the overload of Directory.GetFiles that recursively searches subdirectories for us. As you ll see in 8, the Directory class can save us from writing all this code, but it insists on finding all the files before starting to return any of them.) It s possible to chain enumerations together. For example, we can combine Example 7-34 with the AddNumbers function, as shown in Example 7-35.

IEnumerable<string> allFiles = GetAllFilesInDirectory(@"c:\"); IEnumerable<string> numberedFiles = AddNumbers(allFiles); foreach (string file in numberedFiles) { Console.WriteLine(file); }

If we re using the version of AddNumbers from Example 7-32 the one that uses yield return this will start printing out filenames (with added numbers) immediately. However, if you try it with the version from Example 7-31, you ll see something quite different. The program will sit there for as many minutes as it takes to find all the filenames on the hard disk it might print out some messages to indicate that you don t have permission to access certain folders, but it won t print out any filenames until it has all of them. And it ends up consuming quite a lot of memory on my system it uses more than 130 MB of memory, as it builds up a huge List<string> containing all of the filenames, whereas the lazy version makes do with a rather more frugal 7 MB. So in its eagerness to do all of the necessary work up front, Example 7-31 actually slowed us down. It didn t return any information until it had collected all of the information. Ironically, the lazy version in Example 7-32 enabled us to get to work much faster, and to work more efficiently.

This style of enumeration, in which work is done no sooner than necessary, is sometimes called deferred execution. While that s more of a mouthful, it s probably more fitting in cases where the effect is the opposite of what lazy suggests.

Lazy enumeration also permits an interesting technique whereby infinite loops aren t necessarily a problem. A method can yield an infinite collection, leaving it up to the caller to decide when to stop. Example 7-36 returns an enumeration of numbers in the Fibonacci series. That s an infinite series, and since this example uses the BigInteger type introduced in .NET 4, the quantity of numbers it can return is limited only by space and time the amount of memory in the computer, and the impending heat death of the universe, respectively (or your computer s next reboot, whichever comes sooner).

.net core barcode reader, c# .net core barcode generator, birt pdf 417, birt code 128