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  1. 使用 C# 從數據庫文件中提取數據

    數據庫 被認為是大多數應用程序的組成部分。無論是桌面、Web 還是移動應用程序,數據庫在存儲、訪問和操作數據方面都起著至關重要的作用。有許多數據庫管理系統可以為您創建和管理數據庫。 但是,可能會出現這樣一種情況,即您需要一種方法來從數據庫文件(即 .db 文件)中提取數據,而無需安裝數據庫管理系統或編寫 SQL 查詢。在這種情況下,您將如何解析數據庫文件並從中獲取數據? 在本文中,我將演示如何在不編寫 SQL 查詢的情況下輕鬆地從 SQLite 數據庫中的表中提取數據。我將使用 GroupDocs.Parser for .NET API,它支持通過 ADO.NET。 從 SQLite 數據庫 (.db) 中的表中提取數據的步驟 在 Visual Studio 中創建一個新項目。 從 NuGet 安裝適用於 GroupDocs.Parser for .NET。 添加以下命名空間。 using System; using System.Collections.Generic; using System.IO; using GroupDocs.Parser.Data; using GroupDocs.Parser.Options; 準備連接字符串。 string connectionString = string.Format("Provider=System.Data.Sqlite;Data Source={0};Version=3;", "sqlite.db"); 在 Parser 對像中加載數據庫文件。 using (Parser parser = new Parser(connectionString, new LoadOptions(FileFormat.Database))) { // 你的代碼在這裡 } 使用 Parser.GetToc 方法獲取數據庫中表的列表。 // 獲取表格列表 IEnumerable toc = parser....Value)) { Console.WriteLine(reader...parser.GetText(i.PageIndex.Value)) { Console.WriteLine(reader...

    blog.groupdocs.com/zh-hant/parser/extract-data-...
  2. Get comparison result as an object model | Grou...

    This article explains how to get result document object model with GroupDocs.Comparison for .NET....method and assign its return value to a object. You can retrieve...Thank you for your feedback! We value your opinion. Your feedback...

    docs.groupdocs.com/comparison/net/how-to-get-re...
  3. ספירת מילים והתרחשויות של כל מילה במסמך באמצעות...

    ספירת מספר המילים והמופעים שלהן במסמכי PDF, Word, Excel, PowerPoint ודוא'ל ב-C# באמצעות ממשק API לניתוח מסמכים של NET....Value); // הדפס תוצאות ספירת מילים...of {0}: {1}", pair.Key, pair.Value); } } } להלן הפלט של הקוד לעיל:...

    blog.groupdocs.com/he/parser/count-words-and-oc...
  4. Getting Started | GroupDocs

    Open Navigation Close Navigation Products GroupDocs.Total Product Family GroupDocs.Viewer Product Solution GroupDocs....... We value your opinion. Your feedback...

    docs.groupdocs.com/search/nodejs-java/getting-s...
  5. Working with metadata standards | GroupDocs

    Open Navigation Close Navigation Products GroupDocs.Total Product Family GroupDocs.Viewer Product Solution GroupDocs....... We value your opinion. Your feedback...

    docs.groupdocs.com/metadata/nodejs-java/working...
  6. Advanced Usage | GroupDocs

    Open Navigation Close Navigation Products GroupDocs.Total Product Family GroupDocs.Viewer Product Solution GroupDocs....... We value your opinion. Your feedback...

    docs.groupdocs.com/search/nodejs-java/advanced-...
  7. Introducing Z-Order for Text Signatures in Grou...

    We are back with another monthly release of our eSign API - GroupDocs.Signature for .NET. This release includes three new features, three improvements, and a bug fix. So in this article, I’ll give you a walk-through of the latest release. Support of Z-Order for Text Signatures Z-order determines the order for the overlapping, two-dimensional objects in an x-y plane. Put it simply, if X-axis represents the width and Y-axis represents the height then Z-order will represent the depth of the object....object with a higher Z-order value will appear in front of all...

    blog.groupdocs.com/signature/introducing-z-orde...
  8. Generate Reports

    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....فایل های CSV Comma Separated Values به طور گسترده برای تبادل داده...

    blog.groupdocs.com/fa/tag/generate-reports/
  9. Features Overview | GroupDocs

    GroupDocs.Assembly for .NET is an API that allows you to generate documents in popular microsoft office and email file formats based upon template documents and data obtained from various sources including databases, XML, JSON, OData, objects of custom .NET types, external documents, and more. The following is the list of salient features which are offered by the GroupDocs.Assembly API: Multiple data formats support Use formulae & perform sequential data operations Apply upper, lower, capital, firstcap formatting to strings in template syntax Template syntax support formatting of ordinal, cardinal, alphabetic numeric nature Support template documents with custom variables & text comments within template syntax tags Dynamically insert out document content in report Dynamically configure background color of html documents & generate barcode in reports Dynamically insert hyperlinks in reports & apply attributes to email message body Dynamically attach email attachments Support of next field analogue of Microsoft Word Update fields during word processing document assembly Apply formula during spreadsheet assembly Template formatting for numeric, text, image, date-time, chart elements Conditional formatting of template text elements Linq-based template syntax Change format of assembled file using explicit specifications or file extension Auto-removal of empty paragraphs Generate various report types, e....attribute is set to the following value then. Named Recipient < named@example...for .NET Numeric/Date-Time Value Formatting Supported Text Formatting...

    docs.groupdocs.com/assembly/net/features-overview/
  10. Loading of external resources containing by a d...

    This article explains how to manage loading of external resources contained by a document with GroupDocs.Viewer within your .NET applications....Viewer allows you to change this value. The following code snippet...Thank you for your feedback! We value your opinion. Your feedback...

    docs.groupdocs.com/viewer/net/loading-external-...