conversion of string type to int in asp.net

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I am using a session in my page.
in next page i am taking its value into string variable but at one place i have to use it as an int in argument of fn() at page load
how can i do that
i am getting an error- Input string was not in correct format
tell me all possible solutions
please help me soon...

Posted 30-Oct-12 23:27pm

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Manas Bhardwaj · Answer 1 · 2012-10-30T23:29:00

Solution 1

Well, I guess the error message is quite explanatory. If you try to convert an empty string or something which is not a integer.

You can use TryParse Method anyways:

http://msdn.microsoft.com/en-us/library/system.int32.tryparse.aspx[^]

Posted 30-Oct-12 23:29pm

Manas Bhardwaj

venkat pavan · Answer 2 · 2012-10-30T23:34:00

Solution 2

Try this

C#

Session["intvalue"] = 2;
int i = int.Parse(Session["intvalue"].ToString());

Posted 30-Oct-12 23:34pm

venkat pavan

_Amy · Answer 3 · 2012-10-30T23:47:00

Try this in your second page:

C#

int output = 0;
if(Session["intvalue"] !=null)
{
    if(Session["intvalue"] != "")
    {
        int.tryParse(Session["intvalue"].ToString().Trim(), out output);
    }
}
//now output variable contains your integer value.

Now call your function as fn(output).

--Amit