'宣言 Public ReadOnly Property Properties As RichTextBoxProperties
'使用法 Dim instance As RichTextBox Dim value As RichTextBoxProperties value = instance.Properties
public RichTextBoxProperties Properties {get;}
'宣言 Public ReadOnly Property Properties As RichTextBoxProperties
'使用法 Dim instance As RichTextBox Dim value As RichTextBoxProperties value = instance.Properties
public RichTextBoxProperties Properties {get;}