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How to extract plain text from PDF file using PDFBox. ... NET is a . NET port of PDFBBox created using IKVM. NET . The latest version (1.8.9) ... Sample code ( VB ): Figure 6-1: Code coverage effectiveness of different testing approaches. These studies do not suggest that exploratory testing or other behavioral testing approaches are ineffective. In fact, exploratory testing can be valuable in specific situations and reveal certain categories of defects more readily than other approaches can. But the overall effectiveness of behavioral testing approaches is heavily influenced by the tester's in-depth system and domain knowledge and experience. Empirical evidence also now suggests that simply increasing the sheer number of testers or including testers with diverse perspectives to perform behavioral or exploratory testing does not significantly reduce risk and can leave critical areas of the product untested or undertested. Additionally, the effectiveness of any test method eventually plateaus or becomes less valuable and testers must employ different approaches to further investigate and evaluate the software under test. What these studies do tell us is that when decision makers need more qualified information to reduce or analyze potential overall risk of highly complex or mission-critical systems, systematic testing techniques that evaluate the program's structural integrity might be required. Itkonen, Mika V. Mantyla, and Casper Lassenius, "Defect Detection Efficiency: Test Case Based vs. Exploratory Testing," ESEM, 2007, 61 70, First International Symposium on Empirical Software Engineering and Measurement. vb.net read pdf to text: Reading PDF content with itextsharp dll in VB . NET or C# - Stack ... vb.net extract text from pdf How to extract text from a PDF file in C#, VB . NET | WinForms - PDF
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Anyone using any simple and free methods to read text from PDF files? ... danasegarane is offline. Learning . Net danasegarane's Avatar ... return ( _T ( "EXCEPTION_FLT_DENORMAL_OPERAND" ) ) ; 496 vb.net itextsharp pdfreader: Adobe PDF Reader Control | Adobe Community - Adobe Forums vb.net itextsharp pdfreader C# / VB . NET read PDF extract text - GemBox.Document
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I need to read text in a PDF with an application written in VB . net . ... should be portable to vb . net The c# port http://sourceforge.net/projects/itextsharp/ files / ... alternativly take a look at this article for a number of .net alternatives ... XmlAttributeOverrides object to override the serialization attributes set on the class. The XmlAttributeOverrides class is a collection and contains pairs consisting of the object types that will be overridden and the changes to apply. As shown in the following code, you first create an instance of the XmlAttributes class that is, a helper class that contains all the pairs of overriding objects. Next you create an attribute object that is appropriate for the object being overridden. For example, create an XmlElementAttribute object to override a property. In doing so, you can optionally change the element name or the namespace. Then store the override in the XmlAttributes object. Finally, add the XmlAttributes object to the XmlAttributeOverrides object and indicate the element to which all those overrides will apply. // Create the worker collection of changes XmlAttributes changes = new XmlAttributes(); // Add the first override (change the element's name) XmlElementAttribute newElem = new XmlElementAttribute(); newElem.ElementName = "New name"; changes.XmlElements.Add(newElem); // Create the list of overrides XmlAttributeOverrides over = new XmlAttributeOverrides(); // Fill the overrides list (Employee is the target class) over.Add(typeof(Employee), "Element-to-Override", changes); The instance of the XmlAttributeOverrides class is associated with the XML serializer at creation time, as shown here: XmlSerializer ser = new XmlSerializer(typeof(Employee), over); Note Attribute overriding also enables you to use derived classes in lieu of the defined classes. For example, suppose you have a property of a certain type. To force the serializer (both in serialization and deserialization) to use a derived class, follow the steps outlined in the preceding code but also set the Type property on the overriding element, as shown here: // Manager is a class that inherits from Employee newElem.Type = typeof(Manager); read pdf file using itextsharp vb.net How to Extract Text from PDF Document in C#, VB . NET - E-Iceblue
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A simple class to extract plain text from PDF documents with ITextSharp. break ; case EXCEPTION_FLT_DIVIDE_BY_ZERO break ; case EXCEPTION_FLT_INEXACT_RESULT break ; case EXCEPTION_FLT_INVALID_OPERATION break ; case EXCEPTION_FLT_OVERFLOW break ; case EXCEPTION_FLT_STACK_CHECK break ; case EXCEPTION_FLT_UNDERFLOW break ; case EXCEPTION_INT_DIVIDE_BY_ZERO break ; case EXCEPTION_INT_OVERFLOW break ; case EXCEPTION_PRIV_INSTRUCTION break ; case EXCEPTION_IN_PAGE_ERROR break ; 497 : : : : : : : : : : Itkonen and Kristian Rautiainen, "Exploratory Testing: A Multiple Case Study," International Symposium on Empirical Software Engineering, November 2005. return ( _T ( "EXCEPTION_FLT_DIVIDE_BY_ZERO" ) ) ; The NameTable Object One of the secrets behind the XML readers' great performance is the NameTable class a helper class that works as a quickly accessible table of string objects Several NET classes, including, but not limited to, XmlDocument and XmlTextReader, make use internally of a NameTable object User applications too can use a NameTable object to store potentially duplicated strings more efficiently When stored in a name table, a string is said to be an atomized string The net effect of atomized strings is that XML readers can manage elements and attributes as references rather than values and can therefore function more effectively, especially in terms of memory occupation and speed of comparison Comparing two object references is much faster than comparing all the characters that form a string. return ( _T ( "EXCEPTION_FLT_INEXACT_RESULT" ) ) ; L. Hutcheson, "Exploratory Testing versus Requirements-Based Testing: A Comparative Study," paper presented at Practical Software Quality and Testing Conference, 2007. return ( _T ( "EXCEPTION_FLT_INVALID_OPERATION" ) ) ; The NameTable class, which inherits from the abstract class XmlNameTable, has a relatively simple programming interface and provides methods to add new items and to read them back You add a new item to a name table using the Add method NameTable table = new NameTable(); string name = tableAdd("Author"); You get the atomized string with the specified value from the table using the Get method string name = tableGet("Author"); XML reader classes make internal use of name tables The reader's name table can be accessed through the NameTable property The reader's name table contains an atom (a reference to the string object) for each distinct element or attribute name, completed with namespace information for uniqueness If the XML document being processed contains, say, 1000 nodes named <Customer>, only one atomized entry will be created in the name table. return ( _T ( "EXCEPTION_FLT_OVERFLOW" ) ) ; There are a few simple techniques for basic structural testing approaches of a function including statement testing and block testing. The purpose of statement testing is to exercise all statements in a function. By comparison, block testing exercises groups of sequential statements or blocks of statements that are free from branches or function calls. Because block testing provides greater sensitivity for evaluating control flow through a function, and many coverage tools currently in use measure block coverage, we typically use block testing for designing our minimum set of structural tests. Block Coverage vs. Statement Coverage Statement coverage measures the number of statements in a program that have been executed during testing. Block coverage measures the number of contiguous groups of statements unbound by branches. Conditional clauses that cause control flow to branch can include multiple blocks. This might seem like a minor difference; however, the distinction between statement testing and block testing is important because block testing provides better sensitivity to control flow as compared to statement testing. Example1 function Don't mistake the NameTable object for a worker table in which the reader stores all the document's nodes Instead, the NameTable object is just a worker collection of unique names stored in a way that allows for more effective storage, retrieval, and comparison The NameTable object is internally implemented using an array of structures that mimics a hash table Like a hash table, the array manages strings using hash codes So when a new string is added to the table, a new hash code is generated and compared to the others existing in the array If a string with that hash code already exists in the table, a reference to the existing atom is returned; otherwise, a new entry is created and the relative reference (atom) returned In case of overflow, the size of the array is doubled The NameTable object uses a homemade hash table rather than the official . return ( _T ( "EXCEPTION_FLT_STACK_CHECK" ) ) ; Example1 function illustrates the basic difference between how block and statement coverage are measured. In this example, there are 5 statements, but there are only 4 basic blocks as indicated. A test in which the condition parameter is false results in statement coverage measurement of 40 percent because only two statements are executed. But the block coverage measurement would be 75 percent because the test executed 3 of the 4 blocks of code. Of course, if the condition parameter is true, both the statement and block coverage measurements would be 100 percent. The advantage of block testing over statement testing is revealed in more complex structures. For example, in the Example2 function, passing true arguments to both the condition1 and condition2 parameters would result in 100 percent statement coverage, but only 85.71 percent block coverage. The Example2 function requires a second test where condition1 is false, and condition2 is true to achieve 100 percent block coverage. Example2 function return ( _T ( "EXCEPTION_FLT_UNDERFLOW" ) ) ; NET HashTable object because the HashTable object is not as simple and compact as required in this context When creating a new instance of the XmlTextReader class, you can also indicate the specific NameTable object to use Designing a SAX Parser with NET Tools As mentioned in 1, significant differences exist between NET XML readers a kind of cursor-like parser and Simple API for XML (SAX) parsers All of these differences can be traced, directly or indirectly, to the differences existing between the push model, which is typical of SAX, and the pull model on which readers are based A SAX parser takes full control over the parsing process, extrapolates any predefined piece of XML code, duplicates it into local buffers, and finally pushes that data down to the calling application The interaction between the parser and the application takes place through application-defined classes that, in turn, implement SAX-defined interfaces. return ( _T ( "EXCEPTION_INT_DIVIDE_BY_ZERO" ) ) ; Of course, both of these examples also illustrate the weaknesses of statement or block coverage measures. In simple functions, it is somewhat easy to get high levels of code coverage measures with a relatively few number of tests. That is why it is important to remember there is no direct correlation return ( _T ( "EXCEPTION_INT_OVERFLOW" ) ) ; 39. return ( _T ( "EXCEPTION_PRIV_INSTRUCTION" ) ) ; vb.net extract text from pdf VS 2010 Read TEXT from PDF file-VBForums
Anyone using any simple and free methods to read text from PDF files? ... danasegarane is offline. Learning . Net danasegarane's Avatar ... vb.net read pdf to text Reading PDF content with itextsharp dll in VB . NET or C ? - Recalll
Can you tell me which line of code gives you that error? Here is a VB . NET solution based on ShravankumarKumar's solution. I'm using .Net 4.0 and itextsharp ... vb.net itextsharp pdfreader: Open PDF File in Web Browser using C# Asp . net | Keyur Mehta
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