Coalesce operator and Conditional operator in VB.NET

Possible Duplicate:
Is there a conditional ternary operator in VB.NET?

Hi guys, Can we use Coalesce operator(??) and conditional ternary operator(:) in VB.NET as in C#?

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我想你可以使用内联if语句来关闭它：

//C#
int x = a ? b : c;

'VB.Net
Dim x as Integer = If(a, b, c)

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Sub Main()
    Dim x, z As Object
    Dim y As Nullable(Of Integer)
    z = "1243"

    Dim c As Object = Coalesce(x, y, z)
End Sub

Private Function Coalesce(ByVal ParamArray x As Object())
    Return x.First(Function(y) Not IsNothing(y))
End Function

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仅供参考，合并字符串操作符

Private Function Coalesce(ByVal ParamArray Parameters As String()) As String
    For Each Parameter As String In Parameters
        If Not Parameter Is Nothing Then
            Return Parameter
        End If
    Next
    Return Nothing
End Function

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