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objTimeSpent = DateTime.Now.Subtract(ViewState("StartTime"))
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Updated 5-Sep-11 21:17pm
v2
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Prerak Patel 6-Sep-11 3:17am    
What is problem?
nagendrathecoder 6-Sep-11 3:21am    
What you want is not clear to us.
Please explain your question and give details.

What I understood from your question is, you have some date time value in view state and you want to subtract it from current time.
var timespan = DateTime.Now.Subtract((DateTime)ViewState["DateTime"])


You must need to check the ViewState for null or valid date time value. Else you will get exception.
To know more about the DateTime check here[^]
 
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v2
Without the explicit error messge to go on, I can only suggest that you need to cast ViewState("StartTime") to a DateTime before you use it.
 
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Comments
Abhijit Jana 6-Sep-11 3:30am    
+5. Agree.

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