How to transfer a Date or a time string to a double variable

[billsmate333]

How to transfer a Date or a time string to a double variable?

for example, transfer "2012-06-06 12:32:12" to a double, and then I can use it to set the axis of my graph. Thank you!

[billsmate333]

How to ? How to ?

[zou · Accepted solution]

Convert to TimeStamp first, then typecast to double.

[billsmate333]

Thank you! In the Measurement Studio for VS2008, conveting date to double is very simple through CTime or COleTime Class. Get the seconds of a date, and then divided it by 24*60*60 ( namely total seconds of a day), the result is a doble, and you can use it to set the axis of a graph .