syncfusion-dotnet-smart-data-extraction（Synfusion dotnet 智能数据提取）

Smart Data Extractor — Syncfusion

Overview

Extracts complete document structures from PDFs and images files using the Syncfusion SmartDataExtractor Library. This skill supports one operational mode — generating C# code for the user's project.

Key Capabilities

• Document structure extraction: Identify text elements, images, headers, footers, and tables (including regions, header rows, columns, cell boundaries, and merged cells).
• File format support: Works with PDF documents and common image formats such as JPEG and PNG.
• Table extraction: Specialized capability to extract tabular data.
• Form recognition: Detects and processes structured form data.
• Page-level control: Extract data from specific pages or defined page ranges.
• Confidence threshold: Results are filtered based on a configurable confidence score (0.0–1.0).

Prerequisites

• Install required runtime and library packages from NuGet before running extraction.

Quick Start Examples

Example: Generate Code

User: "Write Program.cs code to extract the data from pdf and save as JSON using SmartDataExtractor." Result: C# code snippet displayed (no files created)

Mode

Mode 1: Generate C# Code for the User's Project *(default)*

Use this mode when the user wants to view, write, review, refactor, or modify C# code related to Smart Data Extractor processing. Trigger keywords: "show me how", "how to", "how can I", "how do I", "provide code", "provide an example", "give an example", "demonstrate", "code snippet", "sample code", "example", "sample", "give me", "show me", "Program.cs", "example code", "generate code for", "codesnippet".

Workflow:

Step 1 — Detect Application Type and Suggest Required NuGet Packages

• Inspect the workspace project files (.csproj, web.config, App.config, Startup.cs, Program.cs, etc.) and use the detection signals table in references/nuget-packages.md to determine the application type.
• Based on the detected application type, identify the correct NuGet package(s) from references/nuget-packages.md and instruct the user to install them before generating any code. ONLY use package IDs and versions listed in references/nuget-packages.md — do not suggest, look up, or infer package names from external sources or common naming conventions.
• Note: If the user's request is explicitly table-only (asks only to extract table data), recommend only the Table Extractor package listed in references/nuget-packages.md and review the ExtractTable section for the detected application type. Do not recommend or add the broader SmartDataExtractor package unless the user requests non-table extraction or JSON conversion features.

Step 2 — Generate Code from Reference Files Only

Do NOT invent, guess, or suggest any API, method, property, class, or namespace not explicitly present in the reference files.

• Read the relevant references/*.md file(s) for the requested feature
• Build C# code strictly from the APIs and snippets found in those files
• Select the correct snippet variant based on the app type detected in Step 1:

- Windows-specific apps (WinForms, WPF,.NET Framework Console) → use Windows-specific snippets - Cross-platform apps (ASP.NET Core,.NET Core/.NET 5+ Console, Blazor, MAUI) → use cross-platform / .Net.Core snippets - Do not create or run any .csx script

Code References

All templates and snippets are in the references/ folder:

Rules

• Output files go in ./output/ directory
• Don't use any API which is not in reference
• Only use NuGet package IDs and versions defined in references/nuget-packages.md when recommending or adding packages.
• For table-only extraction requests, recommend/install only the table extractor package from references/nuget-packages.md for the detected application type.