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  1. 使用 C# 从数据库文件中提取数据

    数据库 被认为是大多数应用程序的组成部分。无论是桌面、Web 还是移动应用程序，数据库在存储、访问和操作数据方面都发挥着至关重要的作用。有许多数据库管理系统允许为您创建和管理数据库。 然而，当您需要一种从数据库文件(即 .db 文件) 中提取数据的方法时，可能会出现这样的情况，而无需安装数据库管理系统或编写 SQL 查询。在这种情况下，您将如何解析数据库文件并从中获取数据？ 在本文中，我将演示如何轻松地从 SQLite 数据库中的表中提取数据，而无需编写 SQL 查询。我将使用 GroupDocs.Parser for .NET API，它支持通过 [ADO.NET](https://en.wikipedia. org/wiki/ADO.NET) 。 从 SQLite 数据库 (.db) 中的表中提取数据的步骤 1. 在 Visual Studio 中创建一个新项目。 2. 从 NuGet 安装 GroupDocs.Parser for .NET。 3. 添加以下命名空间。 using System; using System.Collections.Generic; using System.IO; using GroupDocs.Parser.Data; using GroupDocs.Parser.Options; 4. 准备连接字符串。 string connectionString = string.Format("Provider=System.Data.Sqlite;Data Source={0};Version=3;", "sqlite.db"); 5. 在 Parser 对象中加载数据库文件。 using (Parser parser = new Parser(connectionString, new LoadOptions(FileFormat.Database))) { // 你的代码在这里 } 6....Generic; using System.IO; using GroupDocs...

    blog.groupdocs.com/zh/parser/extract-data-from-...
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  2. Escanear código QR desde ODT usando C#

    Esta guía detalla cómo escanear un código QR desde ODT con C#. Incluye un ejemplo de código para ayudarlo a extraer un código QR desde ODT en C# para una experiencia fluida....también enriquece la experiencia general del usuario al permitir un...

    kb.groupdocs.com/es/parser/net/scan-qrcode-from...
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  3. Sign document with Royal Mail Mailmark 2D Barco...

    This article explains how to sign document with Royal Mail Mailmark 2D Barcode electronic signatures... To generate barcodes and/or sign your...

    docs.groupdocs.com/signature/net/sign-document-...
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  4. Find and Replace Text in PDF in Java | Replace ...

    Programmatically find certain text, words, phrases in PDF documents with case sensitivity and RegEx in Java. Replace or hide the text to redact PDF files....Templates are widely used to generate personalized documents by...

    blog.groupdocs.com/redaction/find-and-replace-t...
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  5. GroupDocs.Conversion per .NET 25.8 - Ultimi Agg...

    Scopri le novità di GroupDocs.Conversion per .NET v25.8. Disponibile ora su NuGet e sul sito web di GroupDocs.... Risolte le eccezioni generate nelle conversioni SVGZ a WordProcessing...

    blog.groupdocs.com/it/conversion/groupdocs-conv...
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  6. Presentation Viewer – Buka & Baca File PPT, PPT...

    Pelajari cara melihat presentasi PowerPoint secara online menggunakan penampil PPTX gratis atau secara programatis dengan API untuk .NET, Java, Python, dan Node.js....rendering by checking the generated file. Lebih banyak Contoh...

    blog.groupdocs.com/id/viewer/view-powerpoint-pr...
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  7. GroupDocs.Comparison Product Family

    Document Automation APIs to enrich .NET and Java applications to view, edit, annotate, convert, compare, e-sign, parse, split, merge, redact, or classify documents of almost all the popular file formats.... Aside this, you can generate summary page to images streams...

    blog.groupdocs.com/categories/groupdocs.compari...
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  8. Compare multiple documents | GroupDocs

    Learn more about how to compare multiple Word documents or PowerPoint presentations simultaneously with GroupDocs.Comparison for Node.js via Java....compare() method is called to generate a single result document that...

    docs.groupdocs.com/comparison/nodejs-java/compa...
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  9. Edit Excel Spreadsheet in Node.js | GroupDocs

    This guide demonstrates how to edit XLS, XLSX, XLSM, XLSB, ODS, SXC spreadsheets with hidden worksheets, protect edited spreadsheets with passwords, and many other powerful features of GroupDocs.Editor for Node.js....js Generating worksheets (tabs) preview...

    docs.groupdocs.com/editor/nodejs-java/edit-excel/
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  10. Font embedding options | GroupDocs

    Learn this guide to know about embedding fonts into output Word document when editing with GroupDocs.Editor API.... method, that will generate an output WordProcessing document...

    docs.groupdocs.com/editor/java/font-embedding-o...
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