从字符串中获取 SolidColorBrush [英] Getting SolidColorBrush from a string

问题描述

我正在尝试使用字符串(类似于红色")在后端设置文本块的前景

I'm trying to set the foreground of a textblock on the backend using a string ( something like "Red")

我已经试过了:

ColorText.Foreground = new BrushConverter().ConvertFromString(colors[color2].ToString());

但是，它似乎无法识别 BrushConvert().我已经包含了 System.Windows.Media 但仍然找不到.

However, it doesn't seem to be recognizing BrushConvert(). I've included System.Windows.Media but it still can't be found.

还有其他方法可以做到这一点吗?

Is there another way to go about doing this?

推荐答案

BrushConverter 在 windows phone 中不可用.您可以构建一个颜色字典，然后使用辅助方法将您想要的颜色传递给 SolidColorBrush ctor.

BrushConverter isn't available in windows phone. You could build up a dictionary of colors then pass the color you want to SolidColorBrush ctor with a helper method.

public static class ColorsHelper {
  private static readonly Dictionary<string, Color> dict =
        typeof(Colors).GetProperties(BindingFlags.Public | BindingFlags.Static)
        .Where(prop => prop.PropertyType == typeof(Color))
        .ToDictionary(prop => prop.Name, prop => (Color)prop.GetValue(null, null));

  public static Color FromName(string name) {
    return dict[name];
  }
}

ColorText.Foreground = new SolidColorBrush(ColorsHelper.FromName("Red"));

确保上面的字典使用了System.Windows.Media.Color 结构体和System.Windows.Media.Colors 类.我相信周围有一些 Color 类型，因此如有必要，请输入整个命名空间或重命名.

Make sure the above dictionary uses System.Windows.Media.Color struct and System.Windows.Media.Colors class. I believe there are a few Color types around so type in the whole namespace if necessary or rename it.

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