本文整理汇总了VB.NET中System.Delegate类的典型用法代码示例。如果您正苦于以下问题：VB.NET Delegate类的具体用法？VB.NET Delegate怎么用？VB.NET Delegate使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Delegate类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: SamplesDelegate
Public Class SamplesDelegate
' Declares a delegate for a method that takes in an int and returns a String.
Delegate Function myMethodDelegate(myInt As Integer) As [String]
' Defines some methods to which the delegate can point.
Public Class mySampleClass
' Defines an instance method.
Public Function myStringMethod(myInt As Integer) As [String]
If myInt > 0 Then
Return "positive"
End If
If myInt < 0 Then
Return "negative"
End If
Return "zero"
End Function 'myStringMethod
' Defines a static method.
Public Shared Function mySignMethod(myInt As Integer) As [String]
If myInt > 0 Then
Return "+"
End If
If myInt < 0 Then
Return "-"
End If
Return ""
End Function 'mySignMethod
End Class
Public Shared Sub Main()
' Creates one delegate for each method. For the instance method, an
' instance (mySC) must be supplied. For the Shared method, the
' method name is qualified by the class name.
Dim mySC As New mySampleClass()
Dim myD1 As New myMethodDelegate(AddressOf mySC.myStringMethod)
Dim myD2 As New myMethodDelegate(AddressOf mySampleClass.mySignMethod)
' Invokes the delegates.
Console.WriteLine("{0} is {1}; use the sign ""{2}"".", 5, myD1(5), myD2(5))
Console.WriteLine("{0} is {1}; use the sign ""{2}"".", - 3, myD1(- 3), myD2(- 3))
Console.WriteLine("{0} is {1}; use the sign ""{2}"".", 0, myD1(0), myD2(0))
End Sub
End Class输出：
5 is positive; use the sign "+". -3 is negative; use the sign "-". 0 is zero; use the sign "".