ComAutoWrapper

ComAutoWrapper is a lightweight, zero-Interop, fluent C# helper library for automating COM objects such as Excel and Word — without relying on bulky Primary Interop Assemblies (PIAs).

✔️ Fully dynamic
✔️ Typed property/method access
✔️ Introspectable
✔️ Ideal for WPF / Console / WinForms projects
✔️ Just ~30 KB compiled DLL

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🚀 Features

• No Interop DLLs needed
• Lightweight COM helper for C#
• Elegant dynamic wrappers:
  • GetProperty<T>(), SetProperty()
  • CallMethod<T>()
• COM introspection (ComTypeInspector)
• Excel selection utilities (ComSelectionHelper)
• Safe release of COM objects
• Compatible with: .NET 6, 7, 8, 9+

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🧠 Examples

Get/Set COM Properties

var excel = Activator.CreateInstance(Type.GetTypeFromProgID("Excel.Application")!); ComInvoker.SetProperty(excel, "Visible", true); var workbooks = ComInvoker.GetProperty<object>(excel, "Workbooks"); var workbook = ComInvoker.CallMethod<object>(workbooks, "Add");

Invoke COM Methods

var sheet = ComInvoker.GetProperty<object>(workbook, "ActiveSheet"); var cell = ComInvoker.GetProperty<object>(sheet, "Cells"); ComInvoker.SetProperty(cell, "Item", new object[] { 1, 1 }, "Hello");

Introspect COM Object

var (methods, propsGet, propsSet) = ComTypeInspector.ListMembers(sheet); Console.WriteLine("Available methods:"); methods.ForEach(Console.WriteLine);

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✨ Excel-Specific Helpers (Optional)

Provided via the built-in ComSelectionHelper:

Method	Description