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vb.netoperatorsnull-coalescing-operator

Is there a VB.NET equivalent for C#'s '??' operator?


Is there a VB.NET equivalent for C#'s ?? operator?


Solution

  • Use the If() operator with two arguments (Microsoft documentation):

    ' Variable first is a nullable type.
    Dim first? As Integer = 3
    Dim second As Integer = 6
    
    ' Variable first <> Nothing, so its value, 3, is returned.
    Console.WriteLine(If(first, second))
    
    second = Nothing
    ' Variable first <> Nothing, so the value of first is returned again. 
    Console.WriteLine(If(first, second))
    
    first = Nothing second = 6
    ' Variable first = Nothing, so 6 is returned.
    Console.WriteLine(If(first, second))