变量未声明或从未分配警告

Question

我有这样的代码:

这是基类:

public class BaseClass : UserControl
{
     protected ListView list;
     protected TreeView tree;

     public BaseClass()
     {
         //...
     }
     //...
}

儿童班

public partial class MyClass : BaseClass
{
     public MyClass()
     {
         InitializeComponent();
         this.BackColor = VisualStyleInformation.TextControlBorder;
         this.Padding = new Padding(1);
     }
     //...
}

partial class MyClass
{
    //...

    private void InitializeComponent()
    {
         this.tree = new System.Windows.Forms.TreeView();
         this.list = new System.Windows.Forms.ListView();
         //...
         this.tree.Location = new System.Drawing.Point(0, 23);
         this.tree.Name = "blablabla";
    }
}

并警告:

Warning 1 The variable 'tree' is either undeclared or was never assigned.
Warning 2 The variable 'list' is either undeclared or was never assigned.

我究竟做错了什么 ？此变量在基类中声明,并在子类中指定.

Answer 1

这个问题没有答案，所以这里是......

重建解决方案然后重新启动 Visual Studio为我工作:-)

感谢SLaks的上述评论。

还讨论了：

stackoverflow.com - 变量“variable_name”要么未声明，要么从未分配。

social.msdn.microsoft.com - 变量“control_name”未声明或从未分配。