C＃「+」號窗口屬性

Question

我有類AppForm繼承了具有屬性AppIconForm（class）的Form。 我想在設計時在屬性窗口中編輯IconForm屬性上出現「+」符號，並顯示子屬性（CloseIcon和MaximizedIcon）。謝謝！ :)

public partial class AppForm : Form 
{ 
    AppIconForm iconform = new AppIconForm(); 
    public AppForm() 
    { 
     InitializeComponent(); 
    } 
    public AppIconForm IconForm 
    { 
     get { return iconform; } 
     set { iconform = value; } 
    } 
} 

//the code of AppIconForm class 
public class AppIconForm 
{ 
    Icon closeicon; 
    Icon maximizeicon; 
    public Icon CloseIcon 
    { 
     get { return closeicon; } 
     set { closeicon = value; } 
    } 
    public Icon MaximizeIcon 
    { 
     get { return maximizeicon; } 
     set { maximizeicon = value; } 
    } 
} 

Answer 1

使用BrowsableAttribute

[Browsable] 
public Icon CloseIcon 
{ 
    get { return closeicon; } 
    set { closeicon = value; } 
}