Gets or sets which control borders are docked to its parent control and determines how a control is resized with its parent.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Use the property to define how a control is automatically resized as its parent control is resized. For example, setting to DockStyle.Left causes the control to align itself with the left edges of its parent control and to resize as the parent control is resized. Controls are docked in their Z-order, which is the visual layering of controls on a form along the form's Z-axis (depth).
A control can be docked to one edge of its parent container or can be docked to all edges and fill the parent container.
Setting the Margin property on a docked control has no effect on the distance of the control from the the edges of its container.
The Anchor and properties are mutually exclusive. Only one can be set at a time, and the last one set takes precedence.
When overriding the property in a derived class, use the base class's property to extend the base implementation. Otherwise, you must provide all the implementation. You are not required to override both the get and set methods of the property; you can override only one if needed.
The following code example creates a GroupBox and sets some of its common properties. The example creates a TextBox and sets its Location within the group box. Next, it sets the Text property of the group box, and docks the group box to the top of the form. Lastly, it disables the group box by setting the Enabled property to false, which causes all controls contained within the group box to be disabled.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.