Declare Color as constant

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How can I declare the Color type as const like this:

private const Color MyLovedColor = Color.Blue;

That doesn't work because the Color.Blue is static not const.

(readonly won't help me because I need the color for an attribute which "support" constants only

Look at the KnownColor enumeration. It will likely cater for what you need.

How to declare constant Color, I am trying to declare a constant value which is a color. Here is what I have done: public Color color1 = new Color(5/255f, 5/255f, 5/255f);. Color constants. 12/11/2018; 2 minutes to read; In this article. The following constants can be used anywhere in your code in place of the actual values. Constant Value

You can assign a const only a value that is a literal. In your case I would then prefer a string literal and define your color as following:

const string mycolor = "Blue";

Then, wherever you need your color, you perform the backward conversion:

Color mynewcolor = Color.FromName(mycolor);

I am sorry, but this is the only way to keep it const.

EDIT: Alternatively you can also keep your color as (A)RGB attributes, stored into a single int value. Note, that you can use a hexadecimal literal then to explicitly set the different components of your color (in ARGB sequence):

const int mycolor = 0x00FFFFFF;
Color mynewcolor = Color.FromArgb(mycolor);

Use constant types for safer and cleaner code, In C/C++, the keyword const is used to declare these constant variables public class Color { public static final int RED = 5; public static final int� You can not use a function in conjunction with a const definition. Either use the immediate window in VBE to determine the RGB value and assign the const as a value [vba]?RGB(66, 107, 179) 11758402 ' so declaration would be Public Const cstrColor As Long = 11758402 [/vba]Or declare it as a public variable and use a routine to assign RGB values.

System.Drawing.Color is a struct, which means you cannot have a constant value of it.

JavaScript const: Declaring Constants in ES6, ES6 provides a new way of declaring a constant by using the const keyword. In this example, we declare an array colors that has one element using the const� :root{ --color: #00ff00; } And again, if you can, use something like SASS or lessCSS. The ability to declare them by writing @color = #fff* and referencing with @color* is much easier than dealing with plain CSS and having to use the var keyword every time you want to access a custom property.

private static readonly Color MyLovedColor = Color.Blue;

I thanks that's the closest you can get?

How to define a color constant-VBForums, Color.Magenta. It's not compiled as nicely as a constant but oh well. to be honest, using a variable (declare as readonly as zakary said) is� How to: Declare A Constant (Visual Basic) 07/20/2015; 2 minutes to read +7; In this article. You use the Const statement to declare a constant and set its value. By declaring a constant, you assign a meaningful name to a value. Once a constant is declared, it cannot be modified or assigned a new value.

What if you used the long value returned by the RGB function as your constant?

for example the value returned for a light blue RGB(51,255,255) is 16777011

so

Private Const ltBlue As Long = 16777011    
txtbox1.backcolor = ltBlue

SCSS Color Variables — HTML Color Codes, Setting color variables makes it easy to reuse colors as you prototype and build your website, without the hassle of remembering every single Hex color code or� Custom properties (sometimes referred to as CSS variables or cascading variables) are entities defined by CSS authors that contain specific values to be reused throughout a document. They are set using custom property notation (e.g., --main-color: black;) and are accessed using the var() function (e.g., color: var(--main-color);).

Color - Unity, Representation of RGBA colors. This structure is used throughout Unity to pass colors around. Each color component is a floating point value with a range from 0 to� Every color has an implicit alpha value of 1.0 or an explicit one provided in the constructor. The alpha value defines the transparency of a color and can be represented by a float value in the range 0.0 - 1.0 or 0 - 255.

Colors in Java: Class Constants & Codes, Java applets and programs are able to render all colors of and under the rainbow . This lesson will cover the color constant and color codes in Java applications. @MattDavis Color cannot be used because the Foreground property of TextBox is of type Brush. You can create a Color and reference that as StaticResource within the SolidColorBrush. – Otto Abnormalverbraucher Aug 20 '18 at 14:01

CSS Variables - var() Function, Variables in CSS should be declared within a CSS selector that defines its example first defines a global custom property named "--main-bg-color", then it� Declaring constants. 12/21/2018; 2 minutes to read +1; In this article. By declaring a constant, you can assign a meaningful name to a value. You use the Const statement to declare a constant and set its value. After a constant is declared, it cannot be modified or assigned a new value.

Comments
  • How about changing your attribute to take (A),R,G,B params?
  • Not sure what you mean with "support constants only"...
  • I used it And then received the Color with Color.FromKnownColor(KnownColor color) msdn.microsoft.com/en-us/library/…
  • That only works if you want your A is 00. A > 0 alpha will not compile. You'd need to convert it convert it to a decimal int, having a negative value.
  • They know this, they want to know how to get around it.
  • @AshBurlaczenko: Isn't "you cannot get around this" a legitimate answer?
  • "you cannot get around this" is rare in coding, there is often a work-around, especially if the limitation is well-known.
  • @AlexanderGalkin: Obviously. My point is that there is no head-on solution. If the constraints can be relaxed or redefined (e.g. you can modify the code for the attribute) the problem can be solved.
  • I Forgot the comment on this answer, look on my comment under the accepted answer.
  • (readonly won't help me because I need the color for an attribute which "support" constants only
  • yep - but a const is not an option so there is no 'solution' as such. Point taken though.
  • @ChrisF, now that you have that little Diamond near your name, you can delete this answer... :)