C# .Net Color ARGB

WIN32颜色值与.NET颜色值的转换

​​http://www.zxbc.cn/html/20080521/41020.html​​

C#中RGB颜色值与整型值的转换

​​http://apps.hi.baidu.com/share/detail/14811784​​

c#的颜色选择板怎么弄

​​http://zhidao.baidu.com/question/274615461.html​​

我的部分样例：

1,设置页面

private void btnSetGridAlterRowBackColor_Click(object sender, EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.ShowDialog();
  
            if (Common.B_ConfirmMsg(this.Text, "这个真是你想要设置的颜色吗?"))
            {
                Common.SystemGridAlterRowBackColor = cd.Color;
                int iColorValue = Common.SystemGridAlterRowBackColor.ToArgb();
                Common.SetAppSettingsKeyValue("GridAlterRowBackColor", iColorValue.ToString());
                txtPreview.BackColor = cd.Color;
            }
        }

        private void frmSetGrid_Load(object sender, EventArgs e)
        {
            txtPreview.BackColor = Color.FromArgb(Common.SystemGridAlterRowBackColor.ToArgb());
        }




2,Program.cs

         static int GetGridSetting()
        {
            int iReadColor = 0;
            object oResult = System.Configuration.ConfigurationManager.AppSettings["GridAlterRowBackColor"];
            if (!Common.IsNullOrEmptyObject(oResult))
            {
                iReadColor = Convert.ToInt32(oResult.ToString());
            }

            return iReadColor;
        }
            // 这3句放在 static void Main()方法中 
            int iResult = GetGridSetting();
            if (iResult != 0)
                Common.SystemGridAlterRowBackColor = System.Drawing.Color.FromArgb(iResult);

3,Common.cs       public static Color SystemGridAlterRowBackColor = Color.LightGoldenrodYellow;

       public static bool B_ConfirmMsg(string sWindowTxt, string sMsg)
       {
           sMsg = sMsg.TrimEnd('?').TrimEnd('？') + " ?";
           return MessageBox.Show(sMsg, sWindowTxt, MessageBoxButtons.YesNoCancel) == DialogResult.Yes;
       }

       public static void SetAppSettingsKeyValue(string AppKey, string AppValue)
       {
           XmlDocument xDoc = new XmlDocument();
           xDoc.Load(System.Windows.Forms.Application.ExecutablePath + ".config");

           XmlNode xNode;
           XmlElement xElem1;
           XmlElement xElem2;

           xNode = xDoc.SelectSingleNode("//appSettings");

           xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key='" + AppKey + "']");
           if (xElem1 != null) xElem1.SetAttribute("value", AppValue);
           else
           {
               xElem2 = xDoc.CreateElement("add");
               xElem2.SetAttribute("key", AppKey);
               xElem2.SetAttribute("value", AppValue);
               xNode.AppendChild(xElem2);
           }
           xDoc.Save(System.Windows.Forms.Application.ExecutablePath + ".config");
       }


<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionStrings>
    <add name="ConnString" connectionString="" />
  </connectionStrings>

  <appSettings>
    <add key="AdminPwd" value=""/>
    <add key="GridAlterRowBackColor" value="-2627631"/>  
  </appSettings>

  <startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0"/>
  </startup>

  
</configuration>