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Explains how to count PDF pages using regular expressions in C# . ... First, we need to open the PDF file using a FileStream and read the contents as a string ... On our diagram, we want to display RequirementGroup elements both as root elements on the diagram and as children elements, whereby a link indicates the containment of these elements in a RequirementGroup instance, not the Model instance representing the canvas The problem is, because both are of the same type, the generated code from the GMF tooling cannot determine the proper node to use, particularly when initializing a diagram from an existing domain instance without a tip To provide the tip, we can add a constraint to our root RequirementGroup node definition to check that its eOpposite parent is null; only root elements won t have a parent reference In OCL, this would be parentoclIsUndefined() In summary, a Toolsmith must be aware of how elements are created and their storage within domain model instances when creating diagram mapping definitions Phantom nodes provide a solution when we do not want to represent a containment relationship in a domain model as a containment representation on a diagram Inner nodes and compartments provide a straightforward way to represent contained elements on a diagram, but can we indicate noncontainment references in a domain model using these containment visual representations It s possible, but it requires some code modification To store a child diagram element in a separate model container, locate the generated xxxCreateCommand doDefaultElementCreation() method and modify it so that the newly created element is stored in an appropriate place in the domain model, along page break in pdf using itextsharp c#: C# Page: Insert PDF pages - RasterEdge.com count pages in pdf without opening c# C# Page: Insert PDF pages - RasterEdge.com
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Explains how to count PDF pages using regular expressions in C# . ... Adobe PDF files, I encountered the need to simply retrieve the page count of a specific file. In Listing 713, we could have used any of the classes shown in Listing 712 as the actual object instance assigned to the Calc reference variable We could obviously create an abstract class that has many more member variables and fully implemented methods or properties, making the inheritance much more worthwhile since we would be inheriting much more ready-built code How to bind to a local port using DatagramSocket How to create a DatagramPacket How to read from, and write to, a DatagramPacket using ByteArrayInputStream and ByteArrayOutputStream How to listen for UDP packets How to send UDP packets How to create a UDP server and a UDP client . tesseract ocr pdf to text c#: Tesseract ocr PDF as input - Stack Overflow ghostscript pdf page count c# How to get number of pages of a PDF file in C# - E-iceblue
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Mar 3, 2015 · IE based HTML to PDF converter supports detecting page-break-before: always; and page-break-after: always; types of page breaks. When your HTML page uses these page breaks, then it can be detected by the HtmlConverter. In the C# code, enable the AutoDetectPageBreak property. A Constraint child element can be added to a Node Mapping, usually to distinguish between types in case a containment reference holds several (sub)types Constraints can be defined in Object Constraint Language (OCL), Java, regexp, and nregexp The context of the constraint is the domain element selected in the node mapping Primarily, constraints provide hints to the generator so that code is written to obtain the proper visual ID for a node A visual ID is an integer that the generator assigns to a node At runtime, type checks are augmented by constraint evaluation to return the proper visual ID where there would otherwise be ambiguity Note that this feature becomes important when initializing a diagram from an existing instance of a domain model Normally, there is a user to eliminate ambiguity when diagramming by selecting the proper node tool from the palette This also is useful when performing diagram updates with semantic refresh because these constraints are checked when comparing view and domain elements, as discussed in Section 435, Subtopic Figure An example should make this point clear Consider the Ecore metamodel and the following relationship between EDataType and EEnum Both are EClassifiers and are held in the eClassifiers containment reference of EPackage, as shown in Figure 11-11 When creating node mappings for each of these, the eClassifiers reference is used as the Containment Feature With mappings to distinct creation tools in the palette, and with each node mapping s Element property set to distinct EClasses, the diagram supports the creation of both EDataType and EEnum elements However, when trying to determine the correct visual ID when pulling objects out of the eClassifiers reference, instances of EEnum are ambiguous because they also appear as EDataType So which edit part visual ID to return Using a constraint on the node mapping for the EDataType that verifies (in OCL) that it is not oclIsKindOf(ecore::EEnum) removes the ambiguity in a straightforward manner Alternative solutions exist, but this one falls into a general pattern of using OCL to more precisely define mappings in GMF, as you will see later Another use of constraints on a node is to distinguish between nodes that represent the same domain element but might have an attribute set when initialized This is commonly the case with classes that have an enumerated type set to a value These go hand in hand with feature sequence initializers, which are covered next. pdf pages c# Creating PDFs with C# using Ghostscript: ASP Alliance
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Definition. Edit. Gets the number of pages in the Portable Document Format ( PDF ) document . public : unsigned int PageCount { get ; } uint32_t PageCount ();. C# printdocument pdf c#: How to print PDF files in C# - E-Iceblue
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