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VB.NET Type.MakeGenericType方法代码示例

本文整理汇总了VB.NET中System.Type.MakeGenericType方法的典型用法代码示例。如果您正苦于以下问题:VB.NET Type.MakeGenericType方法的具体用法?VB.NET Type.MakeGenericType怎么用?VB.NET Type.MakeGenericType使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Type的用法示例。


在下文中一共展示了Type.MakeGenericType方法的3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: Test

' 导入命名空间
Imports System.Reflection
Imports System.Collections.Generic

Public Class Test
    Public Shared Sub Main()
        Console.WriteLine(vbCrLf & "--- Create a constructed type from the generic Dictionary type.")

        ' Create a type object representing the generic Dictionary 
        ' type, by omitting the type arguments (but keeping the 
        ' comma that separates them, so the compiler can infer the
        ' number of type parameters).
        Dim generic As Type = GetType(Dictionary(Of ,))
        DisplayTypeInfo(generic)

        ' Create an array of types to substitute for the type
        ' parameters of Dictionary. The key is of type string, and
        ' the type to be contained in the Dictionary is Test.
        Dim typeArgs() As Type = { GetType(String), GetType(Test) }

        ' Create a Type object representing the constructed generic
        ' type.
        Dim constructed As Type = generic.MakeGenericType(typeArgs)
        DisplayTypeInfo(constructed)

        ' Compare the type objects obtained above to type objects
        ' obtained using GetType() and GetGenericTypeDefinition().
        Console.WriteLine(vbCrLf & "--- Compare types obtained by different methods:")

        Dim t As Type = GetType(Dictionary(Of String, Test))
        Console.WriteLine(vbTab & "Are the constructed types equal? " _
            & (t Is constructed))
        Console.WriteLine(vbTab & "Are the generic types equal? " _ 
            & (t.GetGenericTypeDefinition() Is generic))
    End Sub

    Private Shared Sub DisplayTypeInfo(ByVal t As Type)
        Console.WriteLine(vbCrLf & t.ToString())

        Console.WriteLine(vbTab & "Is this a generic type definition? " _ 
            & t.IsGenericTypeDefinition)

        Console.WriteLine(vbTab & "Is it a generic type? " _ 
            & t.IsGenericType)

        Dim typeArguments() As Type = t.GetGenericArguments()
        Console.WriteLine(vbTab & "List type arguments ({0}):", _
            typeArguments.Length)
        For Each tParam As Type In typeArguments       
            Console.WriteLine(vbTab & vbTab & tParam.ToString())
        Next
    End Sub
End Class
开发者ID:VB.NET开发者,项目名称:System,代码行数:53,代码来源:Type.MakeGenericType

输出:

--- Create a constructed type from the generic Dictionary type.

System.Collections.Generic.Dictionary'2[TKey,TValue]
Is this a generic type definition? True
Is it a generic type? True
List type arguments (2):
TKey
TValue

System.Collections.Generic.Dictionary`2[System.String,Test]
Is this a generic type definition? False
Is it a generic type? True
List type arguments (2):
System.String
Test

--- Compare types obtained by different methods:
Are the constructed types equal? True
Are the generic types equal? True

示例2: Base

Public Class Base(Of T, U)
End Class
Public Class Derived(Of V)
    Inherits Base(Of Integer, V)
End Class
开发者ID:VB.NET开发者,项目名称:System,代码行数:5,代码来源:Type.MakeGenericType

示例3: Outermost

Public Class Outermost(Of T)
    Public Class Inner(Of U)
        Public Class Innermost1(Of V)
        End Class
        Public Class Innermost2
        End Class
    End Class
End Class
开发者ID:VB.NET开发者,项目名称:System,代码行数:8,代码来源:Type.MakeGenericType


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