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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....Value)) { Console.WriteLine(reader...parser.GetText(i.PageIndex.Value)) { Console.WriteLine(reader...

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  2. Groupdocs.Blogs

    Groupdocs.Blogs - GroupDocs Blog | Document Automation Solutions for .NET & Java Developers...File CSV ([Comma Separated Values][1] banyak digunakan untuk...sederhana. Comma Separated Values (CSV) adalah format file untuk...

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  3. eSign document with Barcode signature | Documen...

    This article explains how to add Barcode signature on document page with various options like barcode type, barcode text, positioning, alignment and other visual settings with GroupDocs.Signature... Set the property value. Call the method of the class...Thank you for your feedback! We value your opinion. Your feedback...

    docs.groupdocs.com/signature/net/esign-document...
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  4. Search text in EPUB eBooks | Documentation

    This article explains that how to search a keyword in EPUB e-books Search(String) method is used. This method returns the collection of SearchResult objects....Warning method returns null value if search isn’t supported for...Thank you for your feedback! We value your opinion. Your feedback...

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  5. Conversion from DWF format is supported in Grou...

    We are pleased to announce the release of GroupDocs.Conversion for .NET 18.1. This release comes with support of DWG format. One improvement and few bug fixes are also introduced. Caching with provided LocalCacheDataHandler is improved and issues like conversion from ODG, IFC are resolved. For further details included in this month’s release, please visit the release notes. We’d recommend you to download the latest release of the API and share your experience....specific DOCX document fails with Value cannot be null, parameter trueTypeFont...

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  6. generate reports in csharp

    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....CSV-bestanden ([Comma Separated Values][1]-bestanden worden veel gebruikt...

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  7. CSV to PDF using template

    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....โดยใช้เทมเพลตง่ายๆ Comma Separated Values (CSV) เป็นรูปแบบไฟล์สำหรับ...

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  8. Gérer les données XMP et EXIF des images HEIF H...

    Gérez les données XMP et EXIF des images HEIF, HEIC à l'aide de C#. Lisez, mettez à jour, supprimez les données EXIF et XMP à l'aide de l'API d'automatisation des métadonnées dans les applications .NET....Value); } foreach (TiffTag tag in...WriteLine(pattern, tag.TagID, tag.Value); } foreach (TiffTag tag in...

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  9. 使用 C# 管理 HEIF HEIC 图像的 XMP 和 EXIF 数据

    使用 C# 管理 HEIF、HEIC 图像的 XMP 和 EXIF 数据。使用 .NET 应用程序中的元数据自动化 API 读取、更新、删除 EXIF 和 XMP 数据。...Value); } foreach (TiffTag tag in...WriteLine(pattern, tag.TagID, tag.Value); } foreach (TiffTag tag in...

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  10. Quản lý dữ liệu XMP và EXIF của hình ảnh HEIF H...

    Quản lý dữ liệu XMP và EXIF của ảnh HEIF, HEIC bằng C#. Đọc, cập nhật, xóa dữ liệu EXIF và XMP bằng API tự động hóa siêu dữ liệu trong các ứng dụng .NET....Value); } foreach (TiffTag tag in...WriteLine(pattern, tag.TagID, tag.Value); } foreach (TiffTag tag in...

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