.net 如何在自定义CF控件中覆盖环境背景色

我有一个紧凑的框架（3.5）控件，我希望它有一个默认颜色

SystemColors.Window

，类似于编辑控件。我遇到的问题是Visual Studio（2008）总是在设计图面上使用

控件的默认
背景色
。我假设它是从基本
控件
的默认背景色、父控件或
站点
中提取的

有人知道如何指定或以其他方式通知VisualStudio默认背景色应该是什么吗

public class MoneyInput : Control
{

    public MoneyInput()
    {            
        base.BackColor = SystemColors.Window;
        base.ForeColor = SystemColors.WindowText;
    }

    public override Color BackColor
    {
        get
        {
            return base.BackColor;
        }
        set
        {
            base.BackColor = value;
            Repaint();                
        }
    }

}

下面是我的DesignTimeAttributes.xmta文件的相应部分。请注意，我并不真的希望默认颜色为白色，正如您在下面看到的那样，我只是想让任何东西正常工作：


true
真的
设计器序列化可见性。可见
系统、绘图、颜色
系统。绘图。颜色。白色
外表
控件的背景色


为了添加更多的进度（或缺少进度），我在控件中添加了一个日志，以便在将控件放到设计图面上时可以看到发生了什么。对构造函数中背景色的写入确实生效，并将颜色从控件更改为窗口。但是设计器基础结构中的某些东西（通过属性）将颜色设置回控制状态。这发生在ctor之后，但在OnResize和OnHandleCreated之前。现在，如果控件使用正确的值将BackColor属性序列化到设计器中，则可以安全地将其设置回原位，但设计器不包含默认值

最后一次编辑，我认为用于指定枚举（相对于基类型）的默认值语法不正确。我正在使用我在下面发布的解决方案，但这是一个黑客攻击，希望下一个出现的人能够真正解决它。
我仍然希望得到一个真正的答案，但我将在这里列出我的解决方案：

public class MoneyInput : Control 
{

  // workaround for colors
  private bool _constructed = false;
  private int _handlesCreated; 


  public MoneyInput()
  {
      this.BackColor = SystemColors.Window;
      this.ForeColor = SystemColors.WindowText;
      _constructed = true;
  }

  public override Color BackColor
  {
      get
      {
          return base.BackColor;
      }
      set
      {
          // The logic below is based on:
          //
          // 1.  If not _constructed then we are getting called 
          //      from our ctor and we want the set to happen.
          // 2.  If we do not have a Handle yet then we are 
          //        getting called by the infrastructure that
          //        creates a control.  
          // 3.  At design-time, the VS designer applies the
          //        Ambient color even if we explicitly set 
          //        our own color.  It is supposed to only apply
          //        the Ambient if we have not explictly set
          //        a color.
          // 4.  At runtime we must accept any color changes
          //        that are passed to us.


          // see if VS designer is screwing with us
          bool ignoreColorSet =
              _constructed
              && _handlesCreated == 0
              && RunningInDesigner;


          if (!ignoreColorSet)
          {
              base.BackColor = value;
              Repaint();
          }


      }
  }


  protected override void OnHandleCreated(EventArgs e)
  {
      _handlesCreated++;
      base.OnHandleCreated(e);         
  }

  private bool RunningInDesigner
  {
      get
      {
          // this control is mobile-only so if we are running on full
          //  windows we must be in design mode.  Note that this works
          //  even if we are not Sited yet, where as checking the 
          //  DesignMode property can't be done untl the control has
          //  a Site.
          return (System.Environment.OSVersion.Platform == PlatformID.Win32NT
              || System.Environment.OSVersion.Platform == PlatformID.Win32Windows);
      }
  }

}     

你能创建一个
OnShow
事件并在那里给你的控件上色吗？@jp2code没有要重写的OnShow方法。
public class MoneyInput : Control 
{

  // workaround for colors
  private bool _constructed = false;
  private int _handlesCreated; 


  public MoneyInput()
  {
      this.BackColor = SystemColors.Window;
      this.ForeColor = SystemColors.WindowText;
      _constructed = true;
  }

  public override Color BackColor
  {
      get
      {
          return base.BackColor;
      }
      set
      {
          // The logic below is based on:
          //
          // 1.  If not _constructed then we are getting called 
          //      from our ctor and we want the set to happen.
          // 2.  If we do not have a Handle yet then we are 
          //        getting called by the infrastructure that
          //        creates a control.  
          // 3.  At design-time, the VS designer applies the
          //        Ambient color even if we explicitly set 
          //        our own color.  It is supposed to only apply
          //        the Ambient if we have not explictly set
          //        a color.
          // 4.  At runtime we must accept any color changes
          //        that are passed to us.


          // see if VS designer is screwing with us
          bool ignoreColorSet =
              _constructed
              && _handlesCreated == 0
              && RunningInDesigner;


          if (!ignoreColorSet)
          {
              base.BackColor = value;
              Repaint();
          }


      }
  }


  protected override void OnHandleCreated(EventArgs e)
  {
      _handlesCreated++;
      base.OnHandleCreated(e);         
  }

  private bool RunningInDesigner
  {
      get
      {
          // this control is mobile-only so if we are running on full
          //  windows we must be in design mode.  Note that this works
          //  even if we are not Sited yet, where as checking the 
          //  DesignMode property can't be done untl the control has
          //  a Site.
          return (System.Environment.OSVersion.Platform == PlatformID.Win32NT
              || System.Environment.OSVersion.Platform == PlatformID.Win32Windows);
      }
  }

}