How to add a plus minus sign to a label [closed]

Question

Here my requirement is to assign + and - to a number both at a time to a number in the label as shown in bellow image in c# asp.net!

Answer 1

Use unicode character "PLUS-MINUS SIGN".

Its code point is (U+00B1)

Answer 2

label.Text = "\u00B1"

The Unicode character Plus-Minus-Sign has the code 00B1, and the unicode escape sequence in C# is \u followed by 4 hex-digits.