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data source

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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....Data; using GroupDocs.Parser.Options;...Format("Provider=System.Data.Sqlite;Data Source={0};Version=3;", "sqlite...

    blog.groupdocs.com/zh/parser/extract-data-from-...
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  2. Convert XLSX to MHTML using Node.js

    Quickly convert XLSX to MHTML using Node.js with a simple, efficient approach without installing extra tools. Let's learn how to export XLSX to MHTML in Node.js....path to your XLSX file as the source document for conversion Configure...that the output mirrors the source content in a clean, embeddable...

    kb.groupdocs.com/conversion/nodejs/convert-xlsx...
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  3. How to merge TIF images using java | GroupDocs

    Learn how to merge TIF image files, combine TIF image files into one file programmatically in java language using GroupDocs.Merger for Java library....image data. It can also contain vector based graphics data. TIF...instance of class and pass source TIF file path as a constructor...

    docs.groupdocs.com/merger/java/getting-started/...
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  4. Convert documents to Markdown with GroupDocs.Ma...

    Convert Word, PDF and other documents to structured Markdown with GroupDocs.Total for Java, and read format, page count and metaData before converting — runnable Java examples with downloadable files....MarkdownConverter reads the source and either returns a string...download it. markdown-word.md ![](data:...;base64,[elided]) **Meridian...

    docs.groupdocs.com/total/java/developer-guide/m...
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  5. Convert TXT to MD using Node.js

    Effortlessly convert TXT to MD using Node.js for clean Markdown output. Learn how to export TXT to MD in Node.js with fast, flexible file conversion tools....providing the path to your source TXT file Create a WordProcessingConver...instance, pointing to your source .txt file. This prepares the...

    kb.groupdocs.com/conversion/nodejs/convert-txt-...
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  6. GroupDocs.Assembly for .NET Library – Introduction

    We are pleased to announce the release of the new library that enhances a set of our document collaboration tools - GroupDocs.Assembly for .NET. The library generates PDF and Word documents from templates by automatically filling out merge fields with custom Data. If your company or a client have to create tens or hundreds of documents by filling out standard templates with Data obtained through user input or from a DB, this library can be of great help....out merge fields with custom data. If your company or a client...out standard templates with data obtained through user input...

    blog.groupdocs.com/assembly/groupdocs-assembly-...
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  7. Bulleted List in Word Processing Document | Gro...

    Generate a bulleted list report in a Word document from JSON Data using GroupDocs.Assembly for Node.js via Java.... Data source Save the clients as clients...assembly' ); // "clients" is the data source name used in the template...

    docs.groupdocs.com/assembly/nodejs-java/bullete...
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  8. Dynamic Insertion of Images and Barcodes using ...

    Team GroupDocs is really glad to announce the release of version 17.11 of the GroupDocs.Assembly for .NET API. You can now insert images and barcodes in email formats and remove selective chart series dynamically. Furthermore, new identifiers for barcodes are introduced in this new release. For a better experience with the API, we recommend you to download the latest release and try out the new features introduced in GroupDocs.Assembly for ....dynamicallyFor a chart with dynamic data, you can select which series...restrict access to sensitive data in chart series for some users...

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  9. Compare documents with GroupDocs.Comparison | G...

    Find the differences between two versions of a document from GroupDocs.Total for .NET, list every change, and accept or reject them — runnable C# examples with downloadable files.... Compare two documents The source document goes to the constructor...GetChanges returns the differences as data rather than a document, which...

    docs.groupdocs.com/total/net/developer-guide/co...
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  10. How to merge WAV files using Java | GroupDocs

    Learn how to merge WAV audio files, combine WAV audio files into one file programmatically in Java language using GroupDocs.Merger for Java library....for storing uncompressed audio data. The format doesn’t apply any...to obtain the .jar package Source Audio Files Your browser does...

    docs.groupdocs.com/merger/java/getting-started/...
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