C# 防止触发自定义控件事件

我有一个从继承的自定义控件。在这个

CustomTreeView

中，我处理了

OnNodeMouseClick

事件，以在更改

节点之前执行一些过程。选中了用户期望的
状态：

public class CustomTreeView : TreeView {
    // Constructor...

    protected override void OnNodeMouseClick(TreeNodeMouseClickEventArgs e) {
       base.OnNodeMouseClick(e);

       // Do something...

       e.Node.Checked = !e.Node.Checked;
    }
}

我的问题是，当开发人员在
CustomTreeView
上订阅
AfterCheck
事件时，
e.Action
的值始终是（因为节点的选中状态在代码中发生了更改），而开发人员正在等待
treevaction。通过鼠标
：

public partial class Form1: Form {
    private void customTreeView1_AfterCheck(object sender, TreeViewEventArgs e) {
        // e.Action == TreeViewAction.Unknown
        // [developer] The user clicked on the node, it should be 
        //             TreeViewAction.ByMouse!?
    }
}

我想做的是禁用
AfterCheck
事件的触发，并在我的
CustomTreeView
类中自己调用它，这样我就能够通过
treevaction
传递参数，其值等于
ByMouse
。诸如此类：

public class CustomTreeView : TreeView {
    // Constructor...

    protected override void OnNodeMouseClick(TreeNodeMouseClickEventArgs e) {
       base.OnNodeMouseClick(e);

       // Do something...

       // Prevent all AfterCheck events from firing, just for a moment
       // ??

       e.Node.Checked = !e.Node.Checked;

       // Allow AfterCheck events to fire
       // ??

       // Call myself the AfterCheck event
       base.OnAfterCheck(new TreeViewEventArgs(e.Node, TreeViewAction.ByMouse));
    }
}

这可能吗？
当然可以，只需在
CustomTreeView
中的检查后覆盖
on，它就会按照您的意愿工作

public class CustomTreeView : TreeView {

    protected override void OnNodeMouseClick(TreeNodeMouseClickEventArgs e) {
       base.OnNodeMouseClick(e);

       // your stuff

       // Call myself the AfterCheck event
       base.OnAfterCheck(new TreeViewEventArgs(e.Node, TreeViewAction.ByMouse));
    }

    protected override void OnAfterCheck(TreeViewEventArgs e)
    {
       // do nothing   
    }
}


当然，只需在
CustomTreeView
中的检查后覆盖
，它就会按照您的意愿工作

public class CustomTreeView : TreeView {

    protected override void OnNodeMouseClick(TreeNodeMouseClickEventArgs e) {
       base.OnNodeMouseClick(e);

       // your stuff

       // Call myself the AfterCheck event
       base.OnAfterCheck(new TreeViewEventArgs(e.Node, TreeViewAction.ByMouse));
    }

    protected override void OnAfterCheck(TreeViewEventArgs e)
    {
       // do nothing   
    }
}