Make difference of the current value and the previous value in one label

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I have one label and the value in it, keeps changing. Now I want to make a difference between the current value and the previous value first. Then after that, divide it by their time difference.
How to do this?? Please help!!

Posted 22-Dec-10 20:50pm

Bianca Zhang

Updated 22-Dec-10 21:44pm

Scubapro

v2

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Scubapro 23-Dec-10 3:44am

Edited for readability.

3 solutions

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CPallini · Answer 1 · 2010-12-22T21:48:00

Store the 'current' and 'previous' values in variables of the appropriate type (you didn't indicate any...) and the make the difference.
As about dividing by their time difference (provided your data type is divisible :rolleyes: ), you have to:

Store 'current' and 'previous' times in DateTime objects (use the Now property)
Store the difference in a TimeSpan object.
Use the appropriate property of the TimeSpan object (for instance TotalSeconds) as divisor.

vivekse · Answer 2 · 2010-12-22T21:41:00

Solution 2

Hi,

You can keep previous value in tag property of the label whenever it text value changed.

Posted 22-Dec-10 21:41pm

vivekse

mylogics · Answer 3 · 2010-12-22T21:41:00

Solution 1

you can take your value in session and perform your task