In C# , How can i create a System.Drawing.Color object using a value like this #FFFFF,#FGFG01 etc...
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Be aware if you are getting the hex value from the querystring, the hash will be URL encoded as %23.Phillip– Phillip2013-01-18 06:37:30 +00:00Commented Jan 18, 2013 at 6:37
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4 Answers
string hexValue = "#000000"; // You do need the hash
Color colour = System.Drawing.ColorTranslator.FromHtml(hexValue); // Yippee
Edit: You do actually need the hash, or the alpha value won't be taken into account. Woops!
3 Comments
Paul Turner
A good answer + bonus points for "Yippee"
djdd87
Had to change my if (color == Black) comparison as they're two different objects, so the condition would never have been true. Kept the yippee comment in - just for you!
Shyju
Yes. HASH is needed. Otherwise it will throw an error
var my col = Color.FromArgb(int x);
note you need to specify an alpha value as well (probably you want FF for this, i.e. fully opaque, so add 0xFF000000 to the colour hex value)
1 Comment
Matt Ellen
+1 He can use Int32.Parse to turn a hex string into an int, just drop the #.
Can you change the values to start with FF? E.g. FFFFFFFF = white. This is to add the alpha value to the beginning.
If so, just parse the value with System.Drawing.Color.FromArgb. It takes an int where the first 8 bits are the alpha value. 255 is opaque.
To convert your string into an int, use Int32.Parse. E.g.
String HexColourValue = "FABFAB";
System.Drawing.Color colour = System.Drawing.Color.FromArgb(Int32.Parse("FF"+HexColourValue,
System.Globalization.NumberStyles.HexNumber));
Make sure that HexColourValue doesn't have '#' in it.
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Color.FromArgb(Convert.ToInt32( str.Substring(1), 16 ));
2 Comments
jk.
won't this give an aplha value of 0 which is transparent?
EricSchaefer
Yes, it does, if alpha is supported. You would have to use #FF123456 if you want nontransparent colors or add 0xff000000 to the conversion result.