.NET news » Internet Internet Rss Feed

HTML5 Web Socket in Essence

HTML5 WebSocket defines a bi-directional, full-duplex communication channel operates through a single TCP connection, this article discusses its fantastic performance, the WebSocket protocol principle and its handshake mechanism, and develop a WebSocket application in action (Team Poker).
16 Aug 2011, 08:00:00   Source: HTML5 Web Socket in Essence   Tags: Internet

Desktop spy utility that emails subject's screenshots to you

Make a surveillance application which silently captures desktop and emails you screenshots as attachment periodically
11 Jun 2011, 11:19:00   Source: Desktop spy utility that emails subject's screenshots to you   Tags: Internet

File List Downloader

A tool to automatically download files from website that provide Direct Download
31 May 2011, 04:44:00   Source: File List Downloader   Tags: Internet

A Complete TCP Server/Client Communication and RMI Framework - Usage

An Open Source lightweight framework (named Simple Client Server Library (SCS)) that is delevoped to create Server/Client applications using the simple Remote Method Invocation mechanism.
12 Apr 2011, 08:19:00   Source: A Complete TCP Server/Client Communication and RMI...   Tags: Internet

Creating PDF Documents with ASP.NET and iTextSharp

The Portable Document Format (PDF) is a popular file format for documents. Due to their ubiquity and layout capabilities, it's not uncommon for a websites to use PDF technology. For example, an eCommerce store may offer a "printable receipt" option that, when selected, displays a PDF file within the browser. Last week's article, Filling in PDF Forms with ASP.NET and iTextSharp, looked at how to work with a special kind of PDF document, namely one that has one or more fields defined. A PDF document can contain various types of user interface elements, which are referred to as fields. For instance, there is a text field, a checkbox field, a combobox field, and more. Typically, the person viewing the PDF on her computer interacts with the document's fields; however, it is possible to enumerate and fill a PDF's fields programmatically, as we saw in last week's article.

This article continues our investigation into iTextSharp, a .NET open source library for PDF generation, showing how to use iTextSharp to create PDF documents from scratch. We start with an example of how to programmatically define and piece together paragraphs, tables, and images into a single PDF file. Following that, we explore how to use iTextSharp's built-in capabilities to convert HTML into PDF. Read on to learn more!

8 Mar 2011, 18:00:00   Source: Creating PDF Documents with ASP.NET and iTextSharp   Tags: Internet

WCF Client Server Application with Custom Authentication, Authorization, Encryption and Compression – Part 2

HTTP - No IIS; Authentication - No SSL/X509 Certificate; Encryption - RSA+AES for Request, AES for Response; Compression - GZip for both Request/Response.

WCF Client Server Application with Custom Authentication, Authorization, Encryption and Compression - Part 1

HTTP - No IIS; Authentication - No SSL/X509 Certificate; Encryption - RSA+AES for Request, AES for Response; Compression - GZip for both Request/Response.

Filling in PDF Forms with ASP.NET and iTextSharp

The Portable Document Format (PDF) is a popular file format for documents. PDF files are a popular document format for two primary reasons: first, because the PDF standard is an open standard, there are many vendors that provide PDF readers across virtually all operating systems, and many proprietary programs, such as Microsoft Word, include a "Save as PDF" option. Consequently, PDFs server as a sort of common currency of exchange. A person writing a document using Microsoft Word for Windows can save the document as a PDF, which can then be read by others whether or not they are using Windows and whether or not they have Microsoft Word installed. Second, PDF files are self-contained. Each PDF file includes its complete text, fonts, images, input fields, and other content. This means that even complicated documents with many images, an intricate layout, and with user interface elements like textboxes and checkboxes can be encapsulated in a single PDF file.

Due to their ubiquity and layout capabilities, it's not uncommon for a websites to use PDF technology. For example, when purchasing goods at an online store you may be offered the ability to download an invoice as a PDF file. PDFs also support form fields, which are user interface elements like textboxes, checkboxes, comboboxes, and the like. These form fields can be entered by a user viewing the PDF or, with a bit of code, they can be entered programmatically.

This article is the first in a multi-part series that examines how to programmatically work with PDF files from an ASP.NET application using iTextSharp, a .NET open source library for PDF generation. This installment shows how to use iTextSharp to open an existing PDF document with form fields, fill those form fields with user-supplied values, and then save the combined output to a new PDF file.

1 Mar 2011, 18:00:00   Source: Filling in PDF Forms with ASP.NET and iTextSharp   Tags: Internet

Http Monitor for Webbrowser Control

The ATL COM Dll that captures requests from individual Webbrowser Control
1 Mar 2011, 12:05:00   Source: Http Monitor for Webbrowser Control   Tags: Internet

SharpPcap - A Packet Capture Framework for .NET

A framework for capturing, injecting and analyzing network packets for .NET applications based on the WinPcap packet capture driver
9 Feb 2011, 18:58:00   Source: SharpPcap - A Packet Capture Framework for .NET   Tags: Internet