vb to c# help

I need to convert the date into a long type.

Here's the vb equivalent:

Code:

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lngDate = CLng( CDate( "01/14/2002" )

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The reason why I need to do it is I need to convert the c# DateTime value into a smalltalk serial date (long, or int in .net)

I greatly appreciate your help.

try with "TimeSpan"
in DateTime class you can get the year, month, day, hour, minute, second.
with thoose you can build a timespan (which is a long)