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Convert to Constant


Converts a variable or field into a constant. Constants are used to store values, which should never change. Use this Refactoring on fields or variables that do not and should not change.


Available when the cursor is on a field or variable declaration.


  1. Place the caret on a field or variable declaration.


    The blinking cursor shows the caret’s position at which the Refactoring is available.

    private double g = 9.807;
  2. Press the Ctrl + . or Ctrl + ~ shortcut to invoke the Code Actions menu.
  3. Select Convert to Constant from the menu.

After execution, the Refactoring adds the const modifier to the field or variable declaration.

private const double g = 9.807;
See Also