本文整理匯總了VB.NET中System.Nullable.GetUnderlyingType方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Nullable.GetUnderlyingType方法的具體用法？VB.NET Nullable.GetUnderlyingType怎麽用？VB.NET Nullable.GetUnderlyingType使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。
在下文中一共展示了Nullable.GetUnderlyingType方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: Sample
' This code example demonstrates the
' Nullable.GetUnderlyingType() method.
Imports System.Reflection
Class Sample
' Declare a type named Example.
' The MyMethod member of Example returns a Nullable of Int32.
Public Class Example
Public Function MyMethod() As Nullable(Of Integer)
Return 0
End Function
End Class
'
' Use reflection to obtain a Type object for the Example type.
' Use the Type object to obtain a MethodInfo object for the MyMethod method.
' Use the MethodInfo object to obtain the type of the return value of
' MyMethod, which is Nullable of Int32.
' Use the GetUnderlyingType method to obtain the type argument of the
' return value type, which is Int32.
'
Public Shared Sub Main()
Dim t As Type = GetType(Example)
Dim mi As MethodInfo = t.GetMethod("MyMethod")
Dim retval As Type = mi.ReturnType
Console.WriteLine("Return value type ... {0}", retval)
Dim answer As Type = Nullable.GetUnderlyingType(retval)
Console.WriteLine("Underlying type ..... {0}", answer)
End Sub
End Class輸出：
Return value type ... System.Nullable`1[System.Int32] Underlying type ..... System.Int32