Can any one tell how can I assign Session to int[]

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Hi all I am trying to retrieve to session to an int array, but I am getting an error as Unable to cast object of type 'System.Int32' to type 'System.Int32[]'.

This is what I did

C#

int[] year = (int[])Session["year"]; // For this I am getting that error
DateTime[] dtStartPayPeriodDate = (DateTime[])Session["StartDates"];
DateTime[] dtEndPayPeriodDate = (DateTime[])Session["EndDates"];

for the remaining it works fine can any one tell what's wrong

Posted 25-Apr-12 3:20am

demouser743

Updated 25-Apr-12 3:27am

v2

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woopsydoozy 25-Apr-12 9:27am

Can you show us how you're putting the value INTO session?

demouser743 25-Apr-12 9:35am

This is how I assigned, intitally declared private int[] iPayrollYear; through code I will assign values to the variable then the sessiion is as below Session["year"] = iPayrollYear;

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Pete O'Hanlon · Answer 1 · 2012-04-25T03:30:00

Solution 2

This is telling you that you only have a single int value in Session. What you need to do is retrieve the value and assign it separately. A simple implementation would look like this:

C#

int[] year = new int[] { (int)Session["year"] };

This isn't something I would normally do, but it should work for you.

Posted 25-Apr-12 3:30am

Pete O'Hanlon

Comments

demouser743 25-Apr-12 10:13am

Getting error as Object reference not set to an instance of an object. If I write as per said

int[] year = new int[] { (int)Session["year"] };

Pete O'Hanlon 25-Apr-12 10:23am

If Session["year"] doesn't return anything, it will be null, so you won't be able to cast it. I've just tried this code and it's working fine for me, so I suspect you need to check to see what's in Session["year"].

demouser743 25-Apr-12 10:26am

My session is as follows

http://i.stack.imgur.com/lXTmz.png

Pete O'Hanlon 25-Apr-12 10:40am

There's nothing in there to show the value of Session["year"]. Session is a static class, which exposes an indexer through which you can retrieve values from it, i.. Session[0] or Session["year"].

bbirajdar · Answer 2 · 2012-04-25T03:31:00

Solution 3

The session contains the variable of type 'int' and you are trying to cast it to 'int []'. So it will not work.

The corrected code is as follows:

C#

int year = Convert.ToInt32(Session["year"].ToString()); // corrected

Posted 25-Apr-12 3:31am

bbirajdar

Updated 25-Apr-12 3:33am

v2

A. Orozco · Answer 3 · 2012-04-25T03:33:00

Solution 4

Are you sure the value stored in

C#

Session["year"]

is an array of Int?

It looks like all you have in that variable is a single integer.

Try this:

C#

int year = int.Parse(Session["year"]);

Posted 25-Apr-12 3:33am

A. Orozco

Comments

demouser743 25-Apr-12 10:17am

Yeah it is an int array

Tanmay Tiwari · Answer 4 · 2012-04-25T03:27:00

I think you are doing right type casting...

check your code by my below code

C#

int[] my=new int[5];
           my[0]=1;
           my[1]=2;
           my[2]=3;
           my[3]=6;
           my[4]=9; 
           Session["year"] = my;

           int[] year = (int[])Session["year"];

check before doing casting session is null or not and contain right integer array.

thanks

Can any one tell how can I assign Session to int[]

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