why not convert the value in hidden filed to integer

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1.00/5 (2 votes)

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C#

ASP.NET

c_Service2.ID = Convert.ToInt16(hfId_Check_Box1_Checked.Value);

why not work?

Posted 1-Oct-14 3:42am

ghanem90

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CPallini 1-Oct-14 9:46am

What is the error message?

ghanem90 1-Oct-14 9:50am

the message: Input string was not in a correct format.

Richard Deeming 1-Oct-14 9:46am

Because the value in the hidden field isn't an integer? (Since you haven't told us what the value is, we can only guess.)

ghanem90 1-Oct-14 9:51am

the value integer

Richard Deeming 1-Oct-14 9:52am

Well it's clearly not an integer, is it? Otherwise, you wouldn't be getting a FormatException.

Sinisa Hajnal 1-Oct-14 9:59am

Maybe it's an integer too large for Int16? @ghanem90, did you set a breakpoint and saw for yourself that the value in this line is integer or do you just assume because you saw that hidden field is set in your client side?

Common mistake is that the value is overwritten on page_load before getting to the handler.

Richard Deeming 1-Oct-14 10:45am

If it was too large for an Int16, you'd get an OverflowException, not a FormatException as mentioned in the reply to CPallini's comment.

Sinisa Hajnal 2-Oct-14 2:08am

Indeed. Second point stands though, page load can overwrite the controls.

aarif moh shaikh 2-Oct-14 0:51am

I think, There is some Characters (Non-Numeric) in hidden Field

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ZurdoDev · Answer 1 · 2014-10-01T04:31:00

Solution 1

As others have said, the only reason it won't work is because the Value of the hidden field is not an Int16.

This is very easy for you to debug and figure out why.

Posted 1-Oct-14 4:31am

ZurdoDev