本篇文章给大家分享的是有关VB.NET中如何使用类属性,小编觉得挺实用的,因此分享给大家学习,希望大家阅读完这篇文章后可以有所收获,话不多说,跟着小编一起来看看吧。
VB.NET类属性1、
Public Property Rank() As String
'注意这里的属性名后面有个括号Get
Return strPos
End Get
Set(ByVal value As String)
strPos = value
End Set
End Property
VB.NET类属性2、
Public ReadOnly Property rHobby() As
String 'Readonly要在Property前面
Get
Dim i As Integer
Dim s As String
s = Join(strHobby, ",")
'这个函数就是用来连接数组中的字符串的
Return s
End Get
End Property
VB.NET类属性3、
'这是定义索引器呀!
Public ReadOnly Property indexHobby
(ByVal index As Integer) As String
Get
If (strHobby Is Nothing) Or (index >
UBound(strHobby)) Then
'注意到上面的UBound()了没?还有LBound()!
'它们所在的命名空间是Microsoft.VisualBasic
Return Nothing
End If
Return strHobby(index)
End Get
End Property
VB.NET类属性4、
Public WriteOnly Property wHobby()
As String
Set(ByVal value As String)
If value Is Nothing Then
If Not (strHobby Is Nothing) And
strHobby.GetLength(0) > 1 Then
ReDim Preserve strHobby(UBound
(strHobby) - 1)
End If
Else
If strHobby Is Nothing Then
ReDim strHobby(0)
Else
ReDim Preserve strHobby(UBound
(strHobby) + 1)
End If
strHobby(UBound(strHobby)) = value
End If
End Set
End Property
Default Public Property Words
(ByVal index As Integer) As
String'注意Default
Get '注意到参数了吗?使用这个属性的时候,
就跟实现了索引器效果一样。
<ClassObj(index)>
Words = theWords(index)
End Get
Set(ByVal value As String)
theWords(index) = value
End Set
End Property
以上就是VB.NET中如何使用类属性,小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注编程网行业资讯频道。