c# calculate ean 13 check digit

ean 13 check digit calculator c#

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Table 13.1 A list of the available metadata fields that PDFBox classes will insert into indexes Lucene field name Path Url Contents Summary Modified Uid CreationDate Creator Keywords ModificationDate Producer Subject Trapped Description File system path if loaded from a file URL to PDF document Not easily accessible; stored as a StringBuffer First 500 characters of content The modified date/time according to the URL or path A unique identifier for the Lucene document From PDF metadata if available From PDF metadata if available From PDF metadata if available From PDF metadata if available From PDF metadata if available From PDF metadata if available From PDF metadata if available

The overloaded Select method does an internal search on the data table, filters out rows not satisfying the selection criterion, sorts the result as prescribed, and finally returns an array of data rows You access each column in the row, using the column name in the indexer It s important to note that you can achieve the same result much more efficiently if you simply use a different query for the customer data: select * from customers where country = 'Germany' order by companyname.

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Try ' Open connection conn.Open() ' Create command Dim cmd As SqlCommand = conn.CreateCommand() ' Specify stored procedure to execute cmd.CommandType = CommandType.StoredProcedure cmd.CommandText = "sp_orders_by_employeeid2" ' Create input parameter Dim inparm As SqlParameter = cmd.Parameters.Add( _ "@employeeid", _ SqlDbType.Int _ ) inparm.Direction = ParameterDirection.Input inparm.Value = 2 ' Create output parameter Dim ouparm As SqlParameter = cmd.Parameters.Add( _ "@ordercount", _ SqlDbType.Int _ ) ouparm.Direction = ParameterDirection.Output ' Create return value parameter Dim retval As SqlParameter = cmd.Parameters.Add( _ "return_value", _ SqlDbType.Int _ ) retval.Direction = ParameterDirection.ReturnValue ' Execute command Dim rdr As SqlDataReader = cmd.ExecuteReader() ' Loop through result set While rdr.Read Console.WriteLine( _ "{0} {1}", _ rdr(0).ToString().PadRight(5), _ rdr(1).ToString() _

In the event that a Lucene document doesn t have any of the metadata fields listed in table 13.1, Luke will display <not available>. Listing 13.10 is a complete example of how to use the LucenePDFDocument class.

public class TestPdfToDoc extends SearchTestCase { private Analyzer analyzer = new StandardAnalyzer(); public void testPdfToDoc() throws Exception { FullTextSession session = Search.getFullTextSession(openSession()); Transaction tx = session.beginTransaction(); File f = new File("ch13/src/com/manning/hsia/dvdstore/file1.pdf"); buildIndex(f.getAbsolutePath(), session, tx); tx = session.beginTransaction(); try { QueryParser parser = new QueryParser("description", analyzer); Query query = parser.parse("description" + ":salesman"); org.hibernate.search.FullTextQuery hibQuery = session.createFullTextQuery(query, Pdf.class); List<Pdf> results = hibQuery.list();

) End While ' Close data reader rdr.Close() ' Display output parameter Console.WriteLine( _ "The output parameter value is {0}", _ cmd.Parameters("@ordercount").Value _ ) ' Display return value Console.WriteLine( _ "The return value is {0}", _ cmd.Parameters("return_value").Value _ ) Catch e As Exception ' Display error Console.WriteLine("Error: " & e.ToString) Finally ' Close connection conn.Close() End Try End Sub End Module

assert results.size() == 1: "incorrect result size"; Pdf result = (Pdf) results.get(0); assert result.getAuthor().startsWith("John Griffin"): "incorrect author"; assert result.getDescription().startsWith("Keanu Reeves"): "incorrect description";

This would be ideal in terms of performance, but it d be feasible only if the data you needed were limited to these specific rows in this particular sequence. However, if you were building a more elaborate system, it might be better to pull all the data once from the database (as you do here) and then filter and sort it in different ways. ADO.NET s rich suite of methods for manipulating datasets and their components gives you a broad range of techniques for meeting specific needs in an optimal way.

3. Make this the startup project and run it with Ctrl+F5. You should see the results in Figure 12-13.

for (Object element : s.createQuery("from " Pdf.class.getName()).list()) { s.delete(element) }; tx.commit();

This is very much like the previous example. The main difference was that you added three command parameters, specifying the kind of parameter with the Direction property:

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