RadioButton (rad)

microsoft excel docsRadioButton - Allows the user to select from a list of possible distinct options.

Radio buttons are also called Option Buttons
These are similar to checkboxes because the user can select and deselect them.
You normally use checkboxes in groups


Disable group box if radio buttons take a while or fire web services



Checkboxes work independently, but radiobuttons are intented to work in a group.
When you select one radio button in a group, the others are automatically deselected.
Radiobuttons allow the user to select one of a set of exclusaive options
All radiobuttons in a given container such as a form make a group
Radiobuttons can display text an image or both
In addition a radio's button appearance may be altered to appear as a toggle style button by changing the Appearance property.


Examples

microsoft excel docs

Useful Code


Properties

AppearanceGets or sets a value determining the appearance of the RadioButton.
AutoCheckGets or sets a value indicating whether the Checked value and the appearance of the control automatically change when the control is clicked.
AutoEllipsis Gets or sets a value indicating whether the ellipsis character (...) appears at the right edge of the control, denoting that the control text extends beyond the specified length of the control. (Inherited from ButtonBase.)
AutoSize Gets or sets a value that indicates whether the control resizes based on its contents. (Inherited from ButtonBase.)
BackColorGets or sets the background color of the control. (Inherited from ButtonBase.)
BackgroundImageGets or sets the background image displayed in the control. (Inherited from Control.)
BackgroundImageLayout Gets or sets the background image layout as defined in the ImageLayout enumeration. (Inherited from Control.)
CheckAlignGets or sets the location of the check box portion of the RadioButton.
CheckedGets or sets a value indicating whether the control is checked.
DefaultImeMode Gets the default Input Method Editor (IME) mode supported by this control. (Inherited from ButtonBase.)
DefaultSize Overridden.
FlatAppearance Gets the appearance of the border and the colors used to indicate check state and mouse state. (Inherited from ButtonBase.)
FlatStyleGets or sets the flat style appearance of the button control. (Inherited from ButtonBase.)
ForeColorGets or sets the foreground color of the control. (Inherited from Control.)
ImageGets or sets the image that is displayed on a button control. (Inherited from ButtonBase.)
ImageAlignGets or sets the alignment of the image on the button control. (Inherited from ButtonBase.)
ImageIndexGets or sets the image list index value of the image displayed on the button control. (Inherited from ButtonBase.)
ImageKey(Added 2.0) Gets or sets the key accessor for the image in the ImageList. (Inherited from ButtonBase.)
ImageListGets or sets the ImageList that contains the Image displayed on a button control. (Inherited from ButtonBase.)
IsDefault Gets or sets a value indicating whether the button control is the default button. (Inherited from ButtonBase.)
Text(Inherited from ButtonBase.)
TextAlignOverridden. Gets or sets the alignment of the text on the RadioButton control.
UseCompatibleTextRendering Gets or sets a value that determines whether to use the compatible text rendering engine (GDI+) or not (GDI). (Inherited from ButtonBase.)
UseMnemonic Gets or sets a value indicating whether an ampersand (&) is included in the text of the control. (Inherited from ButtonBase.)
UseVisualStyleBackColor Gets or sets a value that determines if the background is drawn using visual styles, if supported. (Inherited from ButtonBase.)

Methods

CreateAccessibilityInstance Overridden. Creates a new accessibility object for the RadioButton control.
Dispose Overloaded. Releases the resources used by the ButtonBase. (Inherited from ButtonBase.)
GetPreferredSize Retrieves the size of a rectangular area into which a control can be fitted. (Inherited from ButtonBase.)
ToString Overridden. Overrides the ToString method.

Events

AppearanceChanged Occurs when the Appearance property value changes.
AutoSizeChanged Occurs when the value of the AutoSize property changes. (Inherited from ButtonBase.)
CheckedChangedOccurs when the value of the Checked property changes.
Click Occurs when the control is clicked. (Inherited from Control.)
DoubleClick Occurs when the user double-clicks the RadioButton control.
MouseDoubleClick Occurs when the user double-clicks the RadioButton control with the mouse.

private void radRadioButton1_CheckedChanged(object sender, System.EventArgs e) 
{

}


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