实现ICustomTypeDescriptor [英] Implementing ICustomTypeDescriptor

问题描述

我正在尝试实现ICustomTypeDescriptor，以便我可以按逻辑顺序显示类的属性，而不是按照字母顺序在PropertyGrid控件中显示。  在实现GetProperties方法时，我首先创建了一个新的PropertyDescriptorCollection。 然后我发现我无法为这个新集合添加属性，因为PropertyDescriptor的构造函数受到保护。

如果构造函数受到保护，如何创建PropertyDescriptor的实例？

这是我到目前为止所做的，显然不起作用：

PropertyDescriptor [] properties = new PropertyDescriptor [1];
属性[0] = new PropertyDescriptor （）;
properties [0] .Category = "测试类别" ;
属性[0]。描述= "测试说明" ;
属性[0] .DisplayName = "测试属性" ;
属性[0] .Name = "TestProperty" ;
PropertyDescriptorCollection props = new PropertyDescriptorCollection （properties）;

解决方案

检查链接，它可能会有所帮助。

http://social.msdn.microsoft.com/Forums /窗/ EN-US / 2660e771-8a0c-43c0-B090-eba94125c4bc /实施-icustomtypedescriptor？论坛= WinForms的

I am trying to implement ICustomTypeDescriptor so that I can display the properties of a class in a logical order rather than in alphabetical order in the PropertyGrid control.   While implementing the GetProperties method, I started by creating a new PropertyDescriptorCollection.  I then discovered that I cant add properties to this new collection because the constructor of PropertyDescriptor is protected.

How do I create instances of PropertyDescriptor's if the constructor is protected?

here is what i have so far, which obviously doesnt work:

PropertyDescriptor[] properties = new PropertyDescriptor[1];
properties[0] = new PropertyDescriptor();
properties[0].Category = "test category";
properties[0].Description = "Test description";
properties[0].DisplayName = "Test Property";
properties[0].Name = "TestProperty";
PropertyDescriptorCollection props = new PropertyDescriptorCollection(properties);

解决方案

Check the link, it may be helpfull.

http://social.msdn.microsoft.com/Forums/windows/en-US/2660e771-8a0c-43c0-b090-eba94125c4bc/implementing-icustomtypedescriptor?forum=winforms

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