C# 的Color 颜色转换

<!--<br /><br />Code highlighting produced by Actipro CodeHighlighter (freeware)<br />http://www.CodeHighlighter.com/<br /><br />--> // 方法1：
// 引用命名空间 using System.Drawing;

16进制颜色代码转Color类型：ColorTranslator.FromHtml(color);
Color类型转16进制颜色代码：ColorTranslator.ToHtml(_color);

// 方法2：
          ///   <summary>
         ///  将字符串转换为Color
         ///   </summary>
         ///   <param name="color"> 带#号的16进制颜色 </param>
         ///   <returns></returns>
         public  Color ToColor( string  color)
        {

             int  red, green, blue  =   0 ;
             char [] rgb;
            color  =  color.TrimStart( ' # ' );
            color  =  Regex.Replace(color.ToLower(),  " [g-zG-Z] " ,  "" );
             switch  (color.Length)
            {
                 case   3 :
                    rgb  =  color.ToCharArray();
                    red  =  Convert.ToInt32(rgb[ 0 ].ToString()  +  rgb[ 0 ].ToString(),  16 );
                    green  =  Convert.ToInt32(rgb[ 1 ].ToString()  +  rgb[ 1 ].ToString(),  16 );
                    blue  =  Convert.ToInt32(rgb[ 2 ].ToString()  +  rgb[ 2 ].ToString(),  16 );
                     return  Color.FromArgb(red, green, blue);
                 case   6 :
                    rgb  =  color.ToCharArray();
                    red  =  Convert.ToInt32(rgb[ 0 ].ToString()  +  rgb[ 1 ].ToString(),  16 );
                    green  =  Convert.ToInt32(rgb[ 2 ].ToString()  +  rgb[ 3 ].ToString(),  16 );
                    blue  =  Convert.ToInt32(rgb[ 4 ].ToString()  +  rgb[ 5 ].ToString(),  16 );
                     return  Color.FromArgb(red, green, blue);
                 default :
                     return  Color.FromName(color);

            }
        }

         public   string  ColorToHex(Color _color)
        {
             // return "#" + String.Format("{0:X}", Color.FromArgb(_color.R, _color.G, _color.B).ToArgb()).Substring(2);
             // return Convert.ToString(Color.FromArgb(_color.R, _color.G, _color.B).ToArgb(), 16).Substring(2);

        }