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April 18th, 2010, 07:17 PM
#1
Why does not 'int' work? (Type casting)
Hi!
I'm new here, so forgive me if this is in the wrong place...
heres the 'problem' (not really a 'problem', its just something i dont understand even though i got it working)
Basically, I have a field in the database and its a tinyint, i have a simple value there as a '0' or '1' (without the quotes)
(Note: I am using winforms via Visual Studio 2008)
then in the on LOAD code I write:
int for_chkbox=0;
if (this.Settings_ShowSplash_checkBox.Checked)
{ for_chkbox = 1; }
else { for_chkbox = 0; }
but it then throws up this error:
cannot implicitly convert type 'int' to 'byte'. An explicit conversion exists (are you missing a cast?)
i then changed the above code to:
byte for_chkbox=0;
if (this.Settings_ShowSplash_checkBox.Checked)
{ for_chkbox = 1; }
else { for_chkbox = 0; }
and everything works...
Can someone explain to me... why?
Thanks in advance!
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April 18th, 2010, 08:14 PM
#2
Re: Why does not 'int' work? (Type casting)
You have to give us more. Somewhere, for_chkbox (kind of a confusing variable name) is being used in a statement that expects a byte type.
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April 18th, 2010, 09:06 PM
#3
Re: Why does not 'int' work? (Type casting)
Originally Posted by Chris_F
You have to give us more. Somewhere, for_chkbox (kind of a confusing variable name) is being used in a statement that expects a byte type.
If you look at the code it is declared as an int, but somehow I am not buying it...
If you liked my post go ahead and give me an upvote so that my epee.... ahem, reputation will grow.
Yes; I have a blog too - http://the-angry-gorilla.com/
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April 19th, 2010, 12:59 AM
#4
Re: Why does not 'int' work? (Type casting)
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April 19th, 2010, 01:54 AM
#5
Re: Why does not 'int' work? (Type casting)
Originally Posted by BigEd781
If you look at the code it is declared as an int, but somehow I am not buying it...
Uhm, yeah ... And that's why the compiler comes up with an error if it's used somewhere that expects a byte
It's not a bug, it's a feature!
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April 19th, 2010, 02:08 AM
#6
Re: Why does not 'int' work? (Type casting)
It should works fine. You have find a curiosity or a bug in parser. 0 or 1 are integer literals. I'm very interested in solution or reason.
- Make it run.
- Make it right.
- Make it fast.
Don't hesitate to rate my post.
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April 19th, 2010, 02:31 AM
#7
Re: Why does not 'int' work? (Type casting)
Originally Posted by foamy
Uhm, yeah ... And that's why the compiler comes up with an error if it's used somewhere that expects a byte
Yes, but that code is not up there, so it is anyone's guess.
If you liked my post go ahead and give me an upvote so that my epee.... ahem, reputation will grow.
Yes; I have a blog too - http://the-angry-gorilla.com/
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April 19th, 2010, 02:42 AM
#8
Re: Why does not 'int' work? (Type casting)
Originally Posted by BigEd781
Yes, but that code is not up there, so it is anyone's guess.
Yep, without more of the code it's impossible to tell.
It's not a bug, it's a feature!
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April 19th, 2010, 04:46 AM
#9
Re: Why does not 'int' work? (Type casting)
Past some code, around the code you pasted above. Also try searching for that variable in the code files and see if it have any scope level problem.
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April 19th, 2010, 07:20 AM
#10
Re: Why does not 'int' work? (Type casting)
Ok, hold on, will post some more details
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April 19th, 2010, 07:34 AM
#11
Re: Why does not 'int' work? (Type casting)
Here you go:
First my db table:
http://img28.imageshack.us/i/62745765.png/
more db:
http://img517.imageshack.us/i/31661690.png/
My form, and checkbox selected, i took a large screen capture so you can see my connections etc at the bottom and the checkbox properties on the side as well:
http://img340.imageshack.us/i/55444160.png/
and finally, the code:
http://img133.imageshack.us/i/76597391.png/
If I left out any particular piece (dont think i have) just reply and tell me which part and I'll up it.
Cheers!
R
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April 19th, 2010, 07:40 AM
#12
Re: Why does not 'int' work? (Type casting)
oops,
looks like the last pic didnt come out too well, heres that snapshot again:
http://img682.imageshack.us/img682/166/37698623.png
If any of the snapshots are hard to read or too small, just click it for the original large size as the image host resizes it sometimes to show their ads.
I couldnt find the edit button so am posting below... i'm guessing the edit button has been disabled?
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April 19th, 2010, 07:50 AM
#13
Re: Why does not 'int' work? (Type casting)
It must be something weird. I've just tried both of your variants and both compile well, regardless for_chkbox is declared as byte or int.
- Make it run.
- Make it right.
- Make it fast.
Don't hesitate to rate my post.
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April 19th, 2010, 08:31 AM
#14
Re: Why does not 'int' work? (Type casting)
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April 19th, 2010, 08:33 AM
#15
Re: Why does not 'int' work? (Type casting)
That's probably because SplashDisabled is a byte, not an int.
It's not a bug, it's a feature!
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