why i get this error Input string was not in a correct format.

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int a = 0;
a=Convert.ToInt32(Label12.Text.ToString());//error

Label12.text has some values in it..

error:

Input String was not in correct format...

What should i do to solve this error???

Posted 25-Feb-13 19:39pm

sumit kausalye

Updated 25-Feb-13 19:43pm

v3

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Comments

Nandakishore G N 26-Feb-13 1:42am

verify whether the label contains integer or any string values?

Sergey Alexandrovich Kryukov 26-Feb-13 1:53am

Why? :-)
—SA

bbirajdar 26-Feb-13 1:48am

What do you means by "some values in it.." ?????? Are you trying to convert a user's name to int ?

Sergey Alexandrovich Kryukov 26-Feb-13 1:53am

OP's users get names "1", "2", "3"... :-)
—SA

Sergey Alexandrovich Kryukov 26-Feb-13 1:54am

No, you should not fix the bug. This is not a bug, the whole idea makes no sense.
—SA

RDBurmon 26-Feb-13 2:03am

Sumit : What was value of Lable12.text when you received an error ?

bbirajdar 26-Feb-13 5:07am

No reply from the OP even after such a long discussion. This is indeed a vague question.. Marking it

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Abhinav S · Answer 1 · 2013-02-25T20:02:00

Solution 2

You cannot directly convert a string to an integer.
Use Interger.TryParse to avoid errors during conversion.

Posted 25-Feb-13 20:02pm

Abhinav S

Updated 25-Feb-13 20:05pm

v2

Comments

Sergey Alexandrovich Kryukov 26-Feb-13 2:14am

Sure, a 5. Actually, Convert is supposed to do the same (and throw exception), but Parse or TryParse (depending on the purpose) is always better, because the name shows what really happen. "Convert" is a pretty bad word.
—SA

Abhinav S 26-Feb-13 3:18am

Thank you.

Sergey Alexandrovich Kryukov · Answer 2 · 2013-02-25T19:52:00

Solution 1

Because the text of the label is not in valid format, cannot be parsed as integer. More importantly, the whole thing makes no sense. Label is a static control (text is not modified by the user), so why parsing it, ever? Makes no sense at all.

—SA

Posted 25-Feb-13 19:52pm

Sergey Alexandrovich Kryukov

Comments

Abhinav S 26-Feb-13 2:05am

5. I suggested TryParse.

Sergey Alexandrovich Kryukov 26-Feb-13 2:12am

Thank you, Abhinav. Right, one could use TryParse, or Parse would need try-catch block (then why?), but only if the whole thing of parsing makes sense. If this case, it does not. :-)
—SA