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get this error:   For input string: "on"

Posted on 2006-06-21
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Last Modified: 2010-03-31
when I try to parse the value of a checkbox to an int I get this error


here is my code

int display_add = UploadUtil.getInputValue("DISPLAY_ADD",
                input_fields.iterator()) == null || UploadUtil.getInputValue("DISPLAY_ADD",
                input_fields.iterator()).length() == 0  ? 0 :
                Integer.parseInt(UploadUtil.getInputValue("DISPLAY_ADD",
                input_fields.iterator()));

any help will be grealy appreciated
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Question by:huzefaq
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LVL 92

Expert Comment

by:objects
ID: 16956134
looks like it isn't expecting the value of your checkbox to be "on"
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Author Comment

by:huzefaq
ID: 16956661
objects can u please elaborate what do u mean by that

I thought if the checkbox is checked it's value should be 1
and if it is not its value should be 0

is that right?

Thanks
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LVL 92

Accepted Solution

by:
objects earned 250 total points
ID: 16956695
no, be default a checked checkbox will return a value of "on"
unchecked will return no value
you can set the value of the checkbox usiong the value attribute in the <intput> tag
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LVL 35

Assisted Solution

by:girionis
girionis earned 250 total points
ID: 16957663
You will need to add a check before you use it something like

Integer.parseInt(UploadUtil.getInputValue("DISPLAY_ADD", input_fields.iterator()).equals("on") ? 0 : 1);

so whenever it is on it will return 0 and whenever it is nothing it will return 1. Modify the source code accordingly.
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LVL 35

Expert Comment

by:girionis
ID: 16961420
Thank you for accepting, glad I was of help :)
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