Resize WinForm Controls Automatically

Let' say you have a form with a ListBox and OK and Cancel buttons.
 

You want controls to be resized automatically when a form is resized. This is how you can achieve this by using the Anchor property:

Place all controls inside a GroupBox. Set the Anchor and Dock properties

GroupBox properties:
Anchor : Top, Bottom, Left, Right
Dock : None

Buttons properties:
Anchor : Bottom, Right
Dock : None

ListBox properties:
Anchor : Top, Bottom, Left, Right
Dock : None

Save Window Position in Registry

This is how you could save a Window position in the Registry so that the Window position could be restored next time the Form loads.


Declare the following constant strings:

 public const string REGKEY = @"SOFTWARE\MyCompany\MyApp\"; 

public const string WINWIDTH = "windowWidth";

public const string WINHEIGHT = "windowHeight";

Then, create a key for your application in the Registry. 
Declare a RegistryKey variable:
private RegistryKey key;

Use the following method to obtain the key:

public RegistryKey GetKey(string RegKey)

{

            RegistryKey Key = Registry.CurrentUser.OpenSubKey(RegKey, true);

            if (Key == null)

            {

                Key = Registry.CurrentUser.CreateSubKey(RegKey);

            }

            return Key;

}

key =  GetKey(REGKEY);

Get window width and height:

int width = Form1.Size.Width;

int height = Form1.Size.Height;

Save window width and height in the registry and close the RegistryKey.

key.SetValue(WINWIDTH, width);

key.SetValue(WINHEIGHT, height);

key.Close(); 

When you load your form, read the values from the registry:

width = Convert.ToInt16 (key.GetValue(WINWIDTH));

height = Convert.ToInt16 (key.GetValue(WINHEIGHT));

Set the new window size:

Form1.Size = new Size(width, height);