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For VB . NET developers, Yiigo provides online tutorials to view, read , convert PDF documents using Yiigo.Image for .NET and .NET PDF Reading Plugin in ... The XML serializer is designed to map living instances of objects to an XML schema Sometimes, though, you just need to produce a particular XML output, and the use of XML schemas is not a strict requirement In situations like this, what you can do is create an XML writer class and add to it as many specialized methods and properties as required by the structure you want to obtain Earlier in this chapter, we looked at a couple of simple XML writers that were used to create XML representations of string arrays and even JPEG images In those cases, however, the expected output was so simple that there was no need to set up a class with more than one method The next step is to analyze a more complex case arranging a NET XML writer class to produce the XML version of an ADO recordset starting from ADO. itextsharp read pdf line by line vb.net: read . pdf file - MSDN - Microsoft vb.net pdf read How to read PDF file in C#, VB . NET | WinForms - PDF - Syncfusion
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hello. i am using spire.pdf dll. i have a winform in which i read a pdf file from a folder. i want to convert it to a byte array(or to a better option? For example, the optimized code that the just-in-time (JIT) compiler or native compiler produces won't always match the flow of execution in the source code, so you might find that stepping through release code is a little harder than stepping through debug code Another problem to watch out for in native release builds is that sometimes the compiler optimizes the stack registers such that you can't see the complete call stack, as you would in a straight debug build Also be aware that when you do add debugging symbols to the binary, it will grow a small amount to account for the debug section string that identifies the PDB file However, the few-byte size increase is negligible when compared to the ease of being able to solve bugs quickly. vb.net print pdf to default printer: Printing a PDF to a non default printer-VBForums itextsharp read pdf fields vb.net fill pdf fields with vb . net - MSDN - Microsoft
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hi frnds, i want to read PDf files using vb . Net , actually i want to read the hyperlink in PDF files . and content of PDF file . how can i do that ??? Because of the scope and overlap between various non-functional attributes, the names of many attributes are used interchangeably. For example, performance testing is often associated with the concepts of stress, load, and scalability testing mentioned later in this chapter. In many test organizations at Microsoft, the same testers or test teams are in charge of all of these areas. The approaches and goals for these areas have many differences, but there are several similarities. For example, testing a server system to see how well it performs with thousands of connected users is a type of a performance test (many others would call this a load test or scalability test). Similarly, the vb.net read pdf fields How to read and extract data from pdf file in vb | The ASP.NET Forums
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Read the pdf Documents line by line and search the data then fetch the data. Turning on debug symbols for a release build is quite easy, though it should have been turned on by default in the wizard-generated projects For a C# project, open the project Property Pages dialog box and select the Configuration Properties folder Select All Configurations or Release in the Configurations dropdown list, display the Configuration Properties folder, Build property page, and set the Generate Debugging Information field to True This sets the /debug:full flag for CSCEXE Figure 2-1 shows the project Property Pages dialog box in which you turn on debugging information.. NET objects Implementing an ADO Recordset XML Writer In Microsoft ADONET, the OleDbDataAdapter class allows you to import the contents of an ADO Recordset object into one or more DataTable objects This kind of binding is unidirectional, however You can import recordsets into ADONET objects, but you can't create an ADO Recordset object starting from, say, a DataSet or a DataTable object The two-way binding between ADONET and ADO is important because it can save you from planning hasty porting of Windows Distributed interNet Applications (DNA) applications to the NET platform If you have a Windows DNA application with middletier objects that use ADO to fetch data, chances are good that you can import ADO recordsets into ASPNET pages. Figure 2-1: Generating debugging information for a C# project For reasons that I still can't quite fathom, the Microsoft Visual Basic .NET project Property Pages dialog box is different from the one for C# projects, but the compiler switch is still the same. Figure 2-2 shows setting a release build that produces full debug symbols. Open the project Property Pages dialog box and select the Configuration Properties folder. Select All Configurations or Release in the Configuration drop down list, display the Configuration Properties folder, Build property page, and check the Generate Debugging Information check box. ability of an application to perform after running for weeks or months without restarting is considered by many to be part of performance testing (most would call this test a reliability test or long-haul test) The most common flavor of performance testing could be called stopwatch testing Many years ago, some testers actually sat in front of the screen and used a stopwatch to measure the performance of various functional tests This approach, although a reasonable first step in performance testing, is error prone and rarely is the best approach for timing application performance The concept behind this genre of performance testing is simply to measure the duration of various important actions This type of performance test is a single test or a suite of tests designed to measure the application's response times to various user actions or to measure product functionality in controlled environments. Figure 2-2: Generating debugging information for a Visual Basic .NET project For native C++, the /Zi switch turns on the PDB file for the compiler. In the project Property Pages dialog box, display the C/C++ folder, General property page, and set Debug Information Format to Program Database (/Zi). Make sure you don't select Program Database For Edit & Continue or your release build will be built with all the extra padding bytes necessary for editing and continuing, and thus be quite fat and slow. Figure 2-3 shows the appropriate compiler settings. There are other settings for better builds set in Figure 2-3, and I'll discuss them in the Common Debugging Question, "What additional compiler and linker options will help me with my proactive debugging of native code " In this way, as the first step of the porting, you simply refresh the user interface but leave unaltered the middle tier the most critical part of a distributed system With this approach, you soon run into a subtle problem How can you send down updated recordsets to the middle-tier objects A possible workaround to create a recordset from scratch is by importing the ADO library in NET Framework applications and then using the native methods to instantiate and populate the Recordset object In this section, we'll look at an alternative approach: creating an ADO-specific XML file that COM-based middle-tier objects can read and internally transform into a living instance of the object Although the ADONET DataSet object can be easily serialized to XML, the schema used is not compatible with ADO The XML schema used by ADO is based on XML 140. Figure 2-3: Setting the C++ compiler to generate debugging information After setting the compiler switch, you'll need to set the appropriate linker switches: /INCREMENTAL:NO, /DEBUG, and /PDB. The incremental linking option resides in the project Property Pages dialog box, Linker folder, General property page, and Enable Incremental Linking field. Figure 2-4 shows the switch location. Because the stopwatch approach just doesn't scale and isn't really reproducible, most performance testing is accomplished with automated tests that execute the tests and record timing information The goal of performance testing is to identify the important and significant bottlenecks in the system You can think of the system as a series of bottlenecks; identifying and improving one bottleneck most often reveals a new bottleneck somewhere else For example, I worked on a device running Microsoft Windows CE once where the first big performance problem we found was with the way memory management worked on a specific hardware implementation We isolated the problem and improved the speed of the memory allocations We ran our tests again and found a new bottleneck, this time in network throughput. Data-Reduced (XDR) schemas (see 3) and a few specific namespaces. In addition, it makes use of the XDR type system, which has no direct correspondence with the .NET Framework type system. But one thing at a time. Let's start with the new XmlRecordsetWriter class. The XmlRecordsetWriter Programming Interface The XmlRecordsetWriter class embeds an instance of the XmlTextWriter class but does not inherit from it. All the hard work of creating the XML output is accomplished through the internal writer, but the class programming interface is completely customized and largely simplified. By design, the set of constructors of the XmlRecordsetWriter class is nearly identical to the constructors of the XmlTextWriter class, as shown here: protected XmlTextWriter Writer; public XmlRecordsetWriter(string filename) { Writer = new XmlTextWriter(filename, null); SetupWriter(); } public XmlRecordsetWriter(Stream s) { Writer = new XmlTextWriter(s, null); SetupWriter(); } public XmlRecordsetWriter(TextWriter tw) { Writer = new XmlTextWriter(tw); SetupWriter(); } The only difference is that the XmlRecordsetWriter constructors do not support an encoding character set. The parameter for encoding is always set to null. Table 4-8 lists the methods exposed by the XmlRecordsetWriter class. Table 4-8: Public Methods of the XmlRecordsetWriter Class Method Description Loops on the specified ADO.NET source object and WriteContent writes a row of data. This method features overloads to read from DataSet, DataTable, and DataView objects. WriteEndDocument Ensures that all the pending nodes are closed and WriteRecordset releases the underlying writer and stream. One-shot method that groups together all the steps necessary to create an XML recordset file. This method features overloads to read from DataSet, DataTable, and DataView objects. Writes the schema information according to the XDR syntax and reads column metadata from ADO.NET 141 vb.net read pdf content Displaying a PDF File in a VB . NET Form - ThoughtCo
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