Visual Customization

Customizing state color

The default state colors can be customized using the CheckedColor and UncheckedColor properties. The checked state color is updated to the CheckedColor property value when the state is changed to the checked. The unchecked state color is updated to the UncheckedColor property value when the state is changed to unchecked.

SfRadioGroup radioGroup = new SfRadioGroup();
SfRadioButton check = new SfRadioButton();
check.IsChecked = true;
check.CheckedColor = UIColor.Green;
SfRadioButton uncheck = new SfRadioButton();
uncheck.SetTitle("RadioButton", UIControlState.Normal);
uncheck.UncheckedColor = UIColor.FromRGB(238, 130, 238);

CheckedColor and UncheckedColor in RadioButton


The border thickness of the circle in the RadioButton control can be customized with the BorderWidth property.

SfRadioGroup radioGroup = new SfRadioGroup();
SfRadioButton check = new SfRadioButton();
check.SetTitle("Checked State",UIControlState.Normal);
check.IsChecked = true;
check.BorderWidth = 3;
SfRadioButton uncheck = new SfRadioButton();
uncheck.SetTitle("UnChecked State", UIControlState.Normal);
uncheck.BorderWidth = 3;

RadioButton BorderWidth

Setting caption text appearance

You can customize the display text appearance of the SfRadioButton control using the following properties:

  • SetTitleColor: Changes the color of the text.
  • HorizontalAlignment: Changes the horizontal alignment of the caption text.
  • Font: Changes the font family of the text and sets font attributes(bold/italic/none) of the text and also sets font size of the caption text.
SfRadioButton radioButton = new SfRadioButton();
radioButton.SetTitle("RadioButton", UIControlState.Normal);
radioButton.IsChecked = true;
radioButton.SetTitleColor(UIColor.FromRGB(238, 130, 238), UIControlState.Normal);
radioButton.HorizontalAlignment = UIControlContentHorizontalAlignment.Center;
radioButton.Font = UIFont.FromName("Arial", 20);
radioButton.Font = UIFont.SystemFontOfSize(20);
UIFontDescriptor fontDescriptor = radioButton.Font.FontDescriptor;
radioButton.Font = UIFont.FromDescriptor(fontDescriptor.CreateWithTraits(UIFontDescriptorSymbolicTraits.Bold), 0);

RadioButton TextAppereance