qr code generator c# asp.net PART II in C#.NET

Maker QR Code JIS X 0510 in C#.NET PART II

PART II
Painting QR In C#.NET
Using Barcode printer for .NET Control to generate, create QR Code JIS X 0510 image in .NET framework applications.
Decode QR Code In C#.NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET applications.
Part II:
Barcode Maker In Visual C#.NET
Using Barcode creator for .NET Control to generate, create barcode image in Visual Studio .NET applications.
Bar Code Scanner In C#.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
Exploring the C# Library
Generate QR In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
QR Code Maker In VS .NET
Using Barcode printer for Visual Studio .NET Control to generate, create QR-Code image in VS .NET applications.
end = htmlstrIndexOf('"', start); uri = htmlstrSubstring(start, end-start); startloc = end; } return uri; } static void Main(string[] args) { string link = null; string str; string answer; int curloc; // holds current location in response if(argsLength != 1) { ConsoleWriteLine("Usage: MiniCrawler <uri>"); return ; } string uristr = args[0]; // holds current URI HttpWebResponse resp = null; try { do { ConsoleWriteLine("Linking to " + uristr); // Create a WebRequest to the specified URI HttpWebRequest req = (HttpWebRequest) WebRequestCreate(uristr); uristr = null; // disallow further use of this URI // Send that request and return the response resp = (HttpWebResponse) reqGetResponse(); // From the response, obtain an input stream Stream istrm = respGetResponseStream(); // Wrap the input stream in a StreamReader StreamReader rdr = new StreamReader(istrm); // Read in the entire page str = rdrReadToEnd(); curloc = 0; do { // Find the next URI to link to link = FindLink(str, ref curloc); if(link != null) { ConsoleWriteLine("Link found: " + link);
Draw QR Code 2d Barcode In VB.NET
Using Barcode maker for VS .NET Control to generate, create Denso QR Bar Code image in .NET framework applications.
DataMatrix Drawer In Visual C#
Using Barcode generation for VS .NET Control to generate, create Data Matrix ECC200 image in .NET framework applications.
26:
Code39 Creator In C#.NET
Using Barcode drawer for .NET Control to generate, create Code 39 image in Visual Studio .NET applications.
Painting Linear Barcode In C#.NET
Using Barcode encoder for .NET Control to generate, create 1D Barcode image in Visual Studio .NET applications.
Networking Through the Internet Using SystemNet
Drawing Code 128C In Visual C#.NET
Using Barcode maker for .NET framework Control to generate, create Code 128C image in VS .NET applications.
Generate Code11 In C#.NET
Using Barcode generation for .NET Control to generate, create USD - 8 image in VS .NET applications.
ConsoleWrite("Link, More, Quit "); answer = ConsoleReadLine(); if(stringEquals(answer, "L", StringComparisonOrdinalIgnoreCase)) { uristr = stringCopy(link); break; } else if(stringEquals(answer, "Q", StringComparisonOrdinalIgnoreCase)) { break; } else if(stringEquals(answer, "M", StringComparisonOrdinalIgnoreCase)) { ConsoleWriteLine("Searching for another link"); } } else { ConsoleWriteLine("No link found"); break; } } while(linkLength > 0); // Close the Response if(resp != null) respClose(); } while(uristr != null); } catch(WebException exc) { ConsoleWriteLine("Network Error: " + excMessage + "\nStatus code: " + excStatus); } catch(ProtocolViolationException exc) { ConsoleWriteLine("Protocol Error: " + excMessage); } catch(UriFormatException exc) { ConsoleWriteLine("URI Format Error: " + excMessage); } catch(NotSupportedException exc) { ConsoleWriteLine("Unknown Protocol: " + excMessage); } catch(IOException exc) { ConsoleWriteLine("I/O Error: " + excMessage); } finally { if(resp != null) respClose(); } ConsoleWriteLine("Terminating MiniCrawler"); } }
Creating EAN / UCC - 13 In None
Using Barcode generation for Word Control to generate, create GS1 128 image in Office Word applications.
Creating Code128 In Java
Using Barcode creation for Android Control to generate, create Code 128A image in Android applications.
PART II
Matrix Barcode Maker In .NET
Using Barcode creation for ASP.NET Control to generate, create 2D Barcode image in ASP.NET applications.
European Article Number 13 Printer In None
Using Barcode creator for Word Control to generate, create EAN / UCC - 13 image in Microsoft Word applications.
Here is a short sample session that begins crawling at McGraw-Hillcom (Remember, the precise output will vary over time as content changes)
Encode Code128 In Java
Using Barcode generator for Java Control to generate, create Code 128 Code Set B image in Java applications.
Make USS Code 39 In Java
Using Barcode maker for Java Control to generate, create Code 39 Extended image in Java applications.
Linking to http://mcgraw-hillcom Link found: http://stimcgraw-hillcom:9000/cgi-bin/query mss=search&pg=aq Link, More, Quit M Searching for another link Link found: http://investormcgraw-hillcom/phoenixzhtml c=96562&p=irol-irhome Link, More, Quit L Linking to http://investormcgraw-hillcom/phoenixzhtml c=96562&p=irol-irhome Link found: http://wwwmcgraw-hillcom/indexhtml
Paint USS Code 39 In Java
Using Barcode creation for Java Control to generate, create ANSI/AIM Code 39 image in Java applications.
EAN 128 Maker In Visual Basic .NET
Using Barcode creation for VS .NET Control to generate, create UCC.EAN - 128 image in VS .NET applications.
Part II:
Exploring the C# Library
Link, More, Quit L Linking to http://wwwmcgraw-hillcom/indexhtml Link found: http://stimcgraw-hillcom:9000/cgi-bin/query mss=search&pg=aq Link, More, Quit Q Terminating MiniCrawler
Let s take a close look at how MiniCrawler works The URI at which MiniCrawler begins is specified on the command line In Main( ), this URI is stored in the string called uristr A request is created to this URI and then uristr is set to null, which indicates that this URI has already been used Next, the request is sent and the response is obtained The content is then read by wrapping the stream returned by GetResponseStream( ) inside a StreamReader and then calling ReadToEnd( ), which returns the entire contents of the stream as a string Using the content, the program then searches for a link It does this by calling FindLink( ), which is a static method also defined by MiniCrawler FindLink( ) is called with the content string and the starting location at which to begin searching The parameters that receive these values are htmlstr and startloc, respectively Notice that startloc is a ref parameter FindLink( ) looks for a substring that matches href= http, which indicates a link If a match is found, the URI is copied to uri, and the value of startloc is updated to the end of the link Because startloc is a ref parameter, this causes its corresponding argument to be updated in Main( ), enabling the next search to begin where the previous one left off Finally, uri is returned Since uri was initialized to null, if no match is found, a null reference is returned, which indicates failure Back in Main( ), if the link returned by FindLink( ) is not null, the link is displayed, and the user is asked what to do The user can go to that link by pressing l, search the existing content for another link by pressing m, or quit the program by pressing q If the user presses l, the link is followed and the content of the link is obtained The new content is then searched for a link This process continues until all potential links are exhausted You might find it interesting to increase the power of MiniCrawler For example, you might try adding the ability to follow relative links (This is not hard to do) You might try completely automating the crawler by having it go to each link that it finds without user interaction That is, starting at an initial page, have it go to the first link it finds Then, in the new page, have it go to the first link and so on Once a dead-end is reached, have it backtrack one level, find the next link, and then resume linking To accomplish this scheme, you will need to use a stack to hold the URIs and the current location of the search within a URI One way to do this is to use a Stack collection As an extra challenge, try creating treelike output that displays the links
Copyright © OnBarcode.com . All rights reserved.