C# 将颜色作为字符串（如 #XXXXXX）转换为 System.Windows.Media.Brush 的最简单方法
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Simpliest way to convert a Color as a string like #XXXXXX to System.Windows.Media.Brush
提问by Guillaume Slashy
I think that the title is clear !
我认为标题很清楚！
What I have now is :
我现在拥有的是：
System.Drawing.Color uiui = System.Drawing.ColorTranslator.FromHtml(myString);
var intColor = (uint)((uiui.A << 24) | (uiui.R << 16) | (uiui.G << 8) | (uiui.B << 0));
var bytes = BitConverter.GetBytes(uint.Parse(value));
var brush = new SolidColorBrush();
brush.Color = Color.FromArgb(bytes[3], bytes[2], bytes[1], bytes[0]);
1- myString is like #FFFFFF like I said in the title
1- myString 就像我在标题中所说的 #FFFFFF
2- This fails on the BitConverter.GetBytes line which surprises me cause I got the int representation on my Color !
2- 这在 BitConverter.GetBytes 行上失败了，这让我感到惊讶，因为我在我的 Color 上得到了 int 表示！
3- Anyway, I know that COlor conversion are not that intuitive but I feel like I'm not doing it right... Is that the good way ?
3-无论如何，我知道颜色转换不是那么直观，但我觉得我做得不对......这是好方法吗？
采纳答案by Ray
You can use the System.Windows.Media.ColorConverter
您可以使用 System.Windows.Media.ColorConverter
var color = (Color)ColorConverter.ConvertFromString("#FF010203");
//OR
var color = (Color)ColorConverter.ConvertFromString("#010203");
//OR
var color = (Color)ColorConverter.ConvertFromString("Red");
//and then:
var brush = new SolidColorBrush(color);
It's pretty flexible as to what it accepts. Have a look at the examples in XAML here. You can pass any of those string formats in.
它接受的内容非常灵活。在此处查看XAML中的示例。您可以传入任何这些字符串格式。
Note: These are all in System.Windows.Media(for WPF) not to be confused with System.Drawing(for WinForms)
注意：这些都在System.Windows.Media（对于 WPF）不要与System.Drawing（对于 WinForms）混淆
回答by Anthony Shaw
This is the helper class that I've used in the past
这是我过去用过的辅助类
public static Color HexStringToColor(string hexColor)
{
string hc = ExtractHexDigits(hexColor);
if (hc.Length != 6)
{
// you can choose whether to throw an exception
//throw new ArgumentException("hexColor is not exactly 6 digits.");
return Color.Empty;
}
string r = hc.Substring(0, 2);
string g = hc.Substring(2, 2);
string b = hc.Substring(4, 2);
Color color = Color.Empty;
try
{
int ri = Int32.Parse(r, NumberStyles.HexNumber);
int gi = Int32.Parse(g, NumberStyles.HexNumber);
int bi = Int32.Parse(b, NumberStyles.HexNumber);
color = Color.FromArgb(ri, gi, bi);
}
catch
{
// you can choose whether to throw an exception
//throw new ArgumentException("Conversion failed.");
return Color.Empty;
}
return color;
}
and an additional helper class
和一个额外的助手类
public static string ExtractHexDigits(string input)
{
// remove any characters that are not digits (like #)
var isHexDigit
= new Regex("[abcdefABCDEF\d]+", RegexOptions.Compiled);
string newnum = "";
foreach (char c in input)
{
if (isHexDigit.IsMatch(c.ToString()))
{
newnum += c.ToString();
}
}
return newnum;
}
回答by DiSaSteR
Just use ColorTranslator method:
只需使用 ColorTranslator 方法：
ColorTranslator.FromHtml("#010203");
