Laxmi,
On Tue, May 20, 2008 at 4:57 AM, Laxmi Narayana <
[hidden email]> wrote:
> i want to manually not enter any value into uploadbutton.
> I kept validation like below:
> <xforms:bind nodeset="//file/@size" constraint="string-length(.)!=0"/>
> or
> <xforms:bind nodeset="//file" constraint=". != ''"/>
> it is not allowing to enter manually anyvalue into upload button that is
> fine .but I upload anyclass through upload button and i click on submit
> button submission is not happening.
Is your intent to make sure user select a file before they submit the
form? This is a little tricky, as the file will only be uploaded to
the server when the form is submitted. So until it is submitted, the
file isn't sent to the server; the server won't know that a file was
selected; and the submission will fail because the server thinks no
file has been selected.
I think that one way around this is to create a "dummy" submission
with validate="false", replace="none" to a XPL that doesn't do
anything with the submitted data. You run this submission upon
xforms-select on the file control. This way the server will "know"
about the file as soon as it is selected.
If you get a chance to try this, you'll let us know how this works for you.
Alex
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