How to: Arrange Controls with Snaplines and the Grid in Windows Forms
Using the layout features of Visual Studio, you can precisely direct where controls are placed on a form. Controls added to a form or moved on a form can be automatically aligned to the rows and columns of the Windows Forms Designer's grid, or you can align controls by using the snaplines feature.
The dialog boxes and menu commands you see might differ from those described in Help depending on your active settings or edition. To change your settings, choose Import and Export Settings on the Tools menu. For more information, see Working with Settings.
To snap all controls to the grid
Select the SnapToGrid layout mode in the Windows Forms Designer Options dialog box.
For more information, see General, Windows Forms Designer, Options Dialog Box. All controls now align themselves along the points on the grid.
You can snap individual controls to the grid by locking them in place. However, while they are locked, they cannot be moved or resized. For more information about locking controls, see How to: Lock Controls to Windows Forms.
To align controls using snaplines
Select the SnapLines layout mode in the Windows Forms Designer Options dialog box.
For more information, see Walkthrough: Arranging Controls on Windows Forms Using Snaplines. You can now use snaplines to align and arrange controls on your form.