Adding underline attribute to partial text UILabel in storyboard

1. select the UILabel and go to Attribute Inspector section.
   Change the text value from plain to Attributed .

   

2. Select the particular part of text which you want to Underline .

   Note: If u want full text to be Underline select full text.

   

3. Now right click and change the font to Underline.

   

It will Underline the text

Steps:-

1. Go to TextEdit and create your UILabel text with underline.
2. Change UILabel text to Attributed (Attributed Selector).
3. Copy Underlined text and assign to UILabel.

Through code:

    func underLineText(text: String)-> NSMutableAttributedString           let attributedText = NSMutableAttributedString(string: text)     attributedText.addAttribute(NSMutableAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue, range: NSRange(location: 0, length: attributedText.length))          return attributedText        }

//calling of func

   yourLbl.attributedText = underLineText(text:yourLbl.text!)

List of other underline Types

 NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.single.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.thick.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.double.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDot.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDash.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDashDot.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDashDotDot.rawValue NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.byWord.rawValue