Windows Forms (WinForms)

Purpose

Build and maintain Windows desktop applications using Windows Forms — .NET's mature, rapid-application-development UI framework with designer-driven development, rich control set, and direct GDI+ drawing capabilities.

Agent Protocol

Trigger

Exact user phrases: "WinForms", "Windows Forms", "Windows Forms app", "winforms", "Form designer", "GDI+", "System.Windows.Forms", "WinForms designer", "Button Click", "DataGridView".

Input Context

• .NET version (.NET 6+, .NET Framework 4.8.x)
• Visual Studio version (2022 recommended)
• App type (line-of-business, data-entry, utility, legacy migration)
• UI control needs (DataGridView, ListView, TreeView, custom painting, charts)
• Data source (SQL Server, Entity Framework, XML, JSON, web service)
• Deployment (ClickOnce, MSI, XCOPY, MSIX)