Описание тега picturebox
Summary
The PictureBox control provides a way to display images in a window constructed using the Windows Forms GUI framework. Like all other built-in controls, it inherits from System.Windows.Forms.Control and resides in the System.Windows.Forms namespace.
Important properties
In addition to all of the regular Control properties it inherits, the PictureBox also has a couple additional properties for its intended use.
Image
This property allows you to get or set an Image to be displayed in the PictureBox. Any image format supported by GDI+ can be used for this property. See the "Types of Bitmaps" article on MSDN for a list of supported formats.
SizeMode
This property determines how to display the Image within the PictureBox. It accepts a PictureBoxSizeMode value, which says whether the image should be centered, stretched, etc. (To change the size of the PictureBox control itself, use the ClientSize property.)