访问私有类中的成员
我遇到了一种情况，当我需要访问嵌入式私有类中的类的私有成员时。我怎样才能有效地做到这一点。
public partial class Form1 : Form
{
// this private label will be used only in this form
private class MyFormLabel : Label
{
MyFormLabel()
{
this.BorderStyle = BorderStyle.FixedSingle;
// ?? how to pass the from label_Click (without delegates)?
this.Click +=new EventHandler(????);
}
}
public Form1()
{
InitializeComponent();
}
private void label_Click(object sender, EventArgs e)
{
// displays the form caption
MessageBox.Show(this.Text);
}
}
备注： 我将控件动态添加到表单中，因此我可以确保在创建后它们已经订阅了此事件。
I have a situation when I need to access the private members of a class in an embedded private class. How can I do it efficiently.
public partial class Form1 : Form
{
// this private label will be used only in this form
private class MyFormLabel : Label
{
MyFormLabel()
{
this.BorderStyle = BorderStyle.FixedSingle;
// ?? how to pass the from label_Click (without delegates)?
this.Click +=new EventHandler(????);
}
}
public Form1()
{
InitializeComponent();
}
private void label_Click(object sender, EventArgs e)
{
// displays the form caption
MessageBox.Show(this.Text);
}
}
NotaBene:
I add dynamically the controls to the form, so I would be sure that after creation they are already subscribed to this event.
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您可以从嵌套类访问类的私有成员。当然，要访问实例方法，您仍然需要类的实例。
You can access private members of classes from nested classes. Of course, to access an instance method you still need an instance of the class.
在这种情况下，只需以相反的方式执行即可，例如在
InitializeComponent()之后执行myFormLabel.Click += label_ClickIn this case, just do it the othwe way around, e.g. after
InitializeComponent()do amyFormLabel.Click += label_Click