I\'m aware, that the .designer.cs file contains data generated by the visual form designer in Visual Studio. However, I have some additional methods though, whi
Partial designer form class it's used by Visual Studio for placing all code need for build the control.
The method InitializeComponent() can't be overwrite: it's used by designer editor for render a preview of your form! Try in a new project: resize your form, add a label and a button and rename the InitializeComponent() method + re-compile. Your form back to default size!
If you need to call code by form loading, just override OnLoad() virtual method, if you need to call code by form showing, simple override OnShown() virtual method.
Remember to call the base.Method() at begin of it override.
Hope this little my experience can help!