/// <summary>
/// This function tries to convert a given string into a Color in the following order:
/// 1. If the string starts with '#' the function tries to get the color from the hex-code
/// 2. else the function tries to find the color in the color names Dictionary
/// 3. If 1. + 2. were not successfull the function adds a '#' sign and tries 1. + 2. again
/// </summary>
/// <param name="ColorName">The localized name of the color, the hex-code of the color or the internal colorname</param>
/// <returns>the Color if successfull, else null</returns>
public static Color?ColorFromString(string ColorName, Dictionary <Color, string> colorNamesDictionary = null)
{
Color?result = null;
try
{
// if we don't have a string, we cannot have any Color
if (string.IsNullOrWhiteSpace(ColorName))
{
return(null);
}
if (!ColorName.StartsWith("#", StringComparison.Ordinal))
{
result = ColorNamesDictionary.FirstOrDefault(x => string.Equals(x.Value, ColorName, StringComparison.OrdinalIgnoreCase)).Key as Color?;
}
if (!result.HasValue)
{
result = ColorConverter.ConvertFromString(ColorName) as Color?;
}
}
catch (FormatException)
{
if (!result.HasValue && !ColorName.StartsWith("#", StringComparison.Ordinal))
{
result = ColorFromString("#" + ColorName);
}
}
return(result);
}
public void SetUp()
{
_dictionary = new ColorNamesDictionary();
}
