How can I set the default double click action in Visual Studio?
How can I make Visual Studio default to View Source when you double-click the Form1.cs. I prefer to make View Source the default of double-click than View Designer.
Right click the file in the Solution Explorer, choose "Open With...", select the CSharp Editor, and click the "Set as Default" button.
Right click a form file and click "Open With...". Pick your desired designer to open as default (in this case "CSharp Editor" or "Microsoft Visual Basic Editor") and click "Set as Default". Voila.