C # controls

Most controls in. NET are derived from system. Windows. Forms. Control. This type defines the basic functions of controls. Some controls are also customized or derived from system. Windows. Forms. usercontrol. This type provides the functions required for creating controls. The controls used to design the Web UI are derived from another system. Web. UI. Control.

Anchor and dock adequacy
Anchor: used to specify how the control should respond when the user uses the reset function to set the size of the window. You can specify that if the control is reset to the size, it will be set in the border of the root control, or its size will not change, however, the border of the root sector window determines its position.
Dock accessibility: used to park the specified control in the container's hosts box. If you reset the window size with the cursor, the control will park the cursor in the window's cursor box.

ControlCommon adequacy

Anchor	Specifies how the control responds when the container size of the control changes
Backcolor	Control background color
Bottom	The bottom of the control is different from that of the worker window.
Dock	Make the control part in the dialog box
Enable	Available or not
Forecolor	Control foreground
Height	The distance from the bottom to the bottom of the widget
Left	The distance between the left border of the control and the left border of the window
Name	Control name
Parent	Control parent Control
Right	The distance from the right border of the control to the left border of the window
Tabindex	Controls in the container are sorted in the descending order
Tabstop	Whether the control can be usedTabFAQs
Tag	This value is usually not used by the control, and the control information is stored in the control. PassWindows formWhen the designer gives this parameter value, it can only give it a string value.
Top	The distance between the widget's cursor and the cursor in the upper window
Visible	Whether the control is visible during the running period
Width	Controls

ControlCommon events

Click	This event is triggered when a single widget is used. In some cases, this event will also be triggered when the driver is pressed for a response.
Doubleclik	Development
Dragdrop	When the drag-and-drop operation is completed
Dragenter	Triggered when the dragged object enters the control's border
Dragleave	Triggered when the dragged object moves out of the control's border
Dragover	Triggered when the dragged object is placed on the control
Keydown	When the control has focus, the event is triggered when the control is pressed.
Keypress	keydown later, keyup previous release. keydown and keypress the difference is keydown keypress send the cursor char value
Keyup	When the control has a focus, the event is triggered when the cursor is placed. This event is always a cityKeydownAndKeypressPost-launch
Gotfocus	Triggered when the control receives the Focal Point
Lostfocus	Triggered when the control loses its focus.
Mousedown	When the mouse pointer points to a control and the mouse pointer is pressed. AndClickThe events are different because the events are triggered after the listener is pressed and not released.Mousedown
Mousemove	Trigger when the mouse is sliding over the control
Mouseup	The mouse pointer is positioned on the control, and the mouse pointer is triggered when the mouse cursor is placed
Paint	Development
validated	causesvalidation reserved settings: true . When the control gets its focus, this event is triggered. in validationg triggered after the event, indicating that the validity certificate has been completed
Validating	WhenCausesvalidationAttribute settingsTrueWhen the control gets its focus, the event is triggered. Note that the control to be verified is the control that loses focus, rather than the control that gains focus.

Control Board:
In VS 2005, the window designer uses the preview widget interface and uses the capture widget to locate the widget so that the widget is arranged in an integral manner. Set this parameter in the layout mode of the Windows Forms designer menu selected by tools> options.