将VB.Net转换为C＃时出错

Question

I have this VB.Net function ( from other project ) which I need to convert into C# .

Private Function Convert(ByVal Value As String) As String
    Dim transformed = Encoding.Unicode.GetBytes(Value).Select( _
        Function(item) Not item)
    Return Encoding.Unicode.GetString(transformed.ToArray())
End Function

Here's what I've tried:

private string Convert(string Value)
{
    return Encoding.Unicode.GetString(Enumerable.ToArray<byte>(Enumerable.Select<byte, byte>((IEnumerable<byte>)Encoding.Unicode.GetBytes(Value), 
               (Func<byte, byte>)(item => ~item))));
}

I am getting two errors:

• Cannot implicitly convert type 'int' to 'byte'. An explicit conversion exists (are you missing a cast?)
• Cannot convert lambda expression to delegate type 'System.Func' because some of the return types in the block are not implicitly convertible to the delegate return type

Can anyone help me on this?

Answer 1

You can try this C# code.

private string Convert(string Value)
{
    dynamic transformed = Encoding.Unicode.GetBytes(Value).Select(item => (byte)~item);
    return Encoding.Unicode.GetString(transformed.ToArray());
}

I have used this tool to convert - http://converter.telerik.com/

Answer 2

Try the below code.

I am not sure why LINQ Select converts the byte array to an int array, hence the explicit cast.

private string Convert(string value)
{
    var invertedBytes = Encoding.Unicode.GetBytes(value).Select(b => (byte)~b).ToArray();
    return Encoding.Unicode.GetString(invertedBytes);
}