String to date error (Conversion from string to type date is not valid)

I want to crate date as MS Access like date (example -> #mm/dd/yyy#) input date can be string or date so I have created object variable to hold value of date. Then I convert it to msaccess date. but it gives error. See the picture attached.

Before posting this question I had searched a lot, but I don't understand the solutions I found. A major solution is ParseExact("Date String", "Format", System. IFormatProvider). But in my editor Intellisense does not recognize culturevalue. It tells me culturevalue is not defined.

Then I tried Date.tryparse(). It worked, but if I have to use this, then what is use of CDate conversion function?

Edit 1 : Date.tryparse() does not work it returns false

in vb6 "#" & Month(dateIn) & "/" & Day(dateIn) & "/" & Year(dateIn) & "#" works perfectly

It seems that you ask for a string expression for a VBA date value.

That can be done like this:

Dim DateIn As DateTime

DateIn = DateTime.Today

Dim Rval As String

Rval = DateIn.ToString("'#'MM'/'dd'/'yyyy'#'")

Console.WriteLine(Rval)

' Output:
' #07/10/2022#