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Asked: 2026-05-23T19:06:48+00:00

Going through my code, I was hoping to remove instances where I do this:

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Going through my code, I was hoping to remove instances where I do this:

Height = new Unit(doubleValue);

where Height was representing a value in pixels.

I didn’t like having to say new everywhere, it felt like I should be able to just modify height’s value, but it is read-only.

As such, I stumbled upon Unit.Pixel() and Unit.Percentage(). The percentage method takes a double, but the pixel method only handles integers.

Is there some big reason behind this, an oversight, or a misunderstanding on my part?

Is it standard to create a new unit every time I wish to change height’s value?

EDIT: For reference,

Unit Constructor

Pixel Method

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1 Answer

  1. Editorial Team

    The System.Web.UI.WebControls.Unit is a struct and therefore is immutable. You will need to create a new instance each time you want change the height value.

    In web development, sizes are not always measured in pixels, there are many UnitTypes

    Unit.Pixel(int n) // Pixels are represented as integer values.

    I guess that the Constructor that accepts a double was provided for convenience.

    You can do a simple test

    var x = new Unit(5.0);
var y = Unit.Pixel(5);

Assert.AreEqual(x, y); // returns true
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