I need to check whether the text contains a date part with it.
for ex:
mytext_12/26/2011_11:51_AM or someText_12/26/2011_13:51_PM have a date part it returns true.
I am not too good with expressions so looking for one. the format of the date part is fixed.
To merely test for the presence of a date in a string…
If you wanted to check the time at the end too, add
_\d{1,2}:\d{2}_(?:AM|PM).