.net C#WinForms/如何访问包含自定义控件的窗体的控件？

假设我在MainForm中添加了一个CustomListView控件

// CustomListView.cs

class CustomListView : ListView
{
    public CustomListView()
    {
        ItemActivate += new EventHandler(ItemActivateEvent);
    }

    private void ItemActivateEvent(object sender, EventArgs e)
    {
        // update label in the parent form
    }
}

---

如何从那里访问MainForm的其他控件？

从MainForm中创建EventHandler会更容易。通过这种方式，您可以非常轻松地使用MainForm控制CustomListView控件和MainForm控件

// CustomListView.cs

class CustomListView : ListView
{
    public CustomListView()
    {
        ItemActivate += new EventHandler(ItemActivateEvent);
    }

    private void ItemActivateEvent(object sender, EventArgs e)
    {
        // update label in the parent form
    }
}

大概是这样的：

MAINFORM.CS：

private void button1_Click(object sender, EventArgs e)
{
    // Creates and displays the custom control on your MainForm and 
    //     attaches an event to it.

    CustomListViewControl lv = new CustomListViewControl();
    this.Controls.Add(lv);

    lv.ItemActivate += new EventHandler(ItemActivateEvent);
}

void ItemActivate(object sender, EventArgs e)
{
    // Do some stuff with MainForm or its child controls in here.

    this.Text = "I am uber awesome";
    this.Hide();



}

---

您可能需要将访问修饰符设置为Public或Internal，以便表单可以访问CustomListView。我不记得了，您可能不需要。但如果CustomListView管理自己的事件，这不是更好的设计吗？