通过继承表单中的控件循环...

问题描述

所以我有一个相对简单的任务，在表格上循环遍历所有 Controls 之前已经多次做过没有麻烦。这次我确实遇到了问题。 表单我传递给我的函数有一个基本的表单已经有一些控制就可以了。现在问题是我的函数只遍历基础表单上的 Controls ，忽略所有控件我添加到当前的表单。

我正在使用的函数循环遍历表格上的code>控件如下所示：

So I''m having a relatively simple task of looping through all Controls on a Form, something I''ve done many times before without troubles. This time I do have a problem though. The Form I''m passing to my function has a base Form which already has some Controls on it. Now the problem is that my function only loops through the Controls on the base Form, ignoring all the Controls I added to the current Form.
The function I''m using to loop through the Controls on my Form looks like this:

public void LoopThroughControls(Control parent)
{
   if (parent != null)
   {
      foreach (Control ctrl in parent.Controls)
      {
         this.LoopThroughControls(ctrl);
         // Do something with Control here...
      }
   }
}

我在组件中使用它，我得到 Form 如下（从 System.Windows.Forms.ErrorProvider网站属性复制）：

I use this from within a Component and I get my Form as follows (copied from the System.Windows.Forms.ErrorProvider Site Property):

public override ISite Site
{
   get { return base.Site; }
   set
   {
      base.Site = value;
      if ((value != null))
      {
         // Try to get the IDesignerHost (the Form of the current Component)
         IDesignerHost host = value.GetService(typeof(IDesignerHost)) as IDesignerHost;
         if ((host != null))
         {
            // With the IDesignerHost it is possible to get the RootComponent.
            // This is the Form for the active designer.
            IComponent rootComponent = host.RootComponent;
            if (rootComponent is ContainerControl)
            {
               // If the RootComponent is a ContainerControl we assign it to the ContainerControl Property.
               this.ContainerControl = (ContainerControl)rootComponent;
            }
         }
      }
   }
}

然后我调用 LoopThroughControls 函数传入 ContainerControl 作为参数。当我设置断点时，我可以在 ContainerControl 中看到所有控件，但在循环遍历<$时会忽略它们c $ c>控件。

当我直接从我的派生表格调用上述函数时，DOES循环遍历所有控制。但是， ContainerControl 似乎也引用了派生的表单，所以我真的看不到差异......

所以任何人都有解释，甚至更好的解决方案？

I then call the LoopThroughControls function passing in ContainerControl as parameter. When I set a breakpoint I can see all the Controls in ContainerControl, but they are ignored when looping through the Controls.
When I call the above function directly from my derived Form is DOES loop through ALL Controls. However, ContainerControl seems to have a reference to the derived Form as well, so I can''t really see the difference...
So anyone has an explanation, and even better, a solution?

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