page_unload does something else then i expected

[demoti]

Hello,

I have some asp.net page with save-buttons. When the save-button is pressed the inputted data in the form is saved to sql-db.

I think my application would look a lot nicer if the form would be saved automatically when i go to another page.

I thought copying the code to the "unload-event" of the page would do that for me but apparently it does not. I tried al the page-events that i know of and still don't know what event is raised when you close a page...

any help? this can't be too tough i hope...

thanks in advance,

[veryjonny]

How does the person go to the next page?

Using Page.IspostBack might help in the page_load event.

[mendhak]

The other way to go to a page would be through a link. Set your save code in the link's click event.

[veryjonny]

frog, whats sandpaper?

[mendhak]

The solution to all the world's problems!

[demoti]

thanks for your reply.

I use a framework and the links to the other pages are all in the left frame, the frame that has to be saved is in the right. i can't call the save-function from the left without reviewing a lot of code...

is there no base class events like "load" or "disposed" or "init" that would trigger when the user leaves the page?

[demoti]

I use a framework

i meant frameset: i redirect with frameredirect(me, "urlstring")

[veryjonny]

I dont think so that you would be able to find any such event. In asp the page_unload is called when the page is sent to the browser unlike windows forms.

[Wokawidget]

You may be able to do this with java script in the client side.

When you gert a PM on VBF do you notice how when you try to navigate away from the PM page, or close IE down, you get a message box asking if you want to send a reciept. All you would do is save your code here...you could even use remoting.

Check out the source code for a PM page.
When you read this let me know, and I'll send u a PM, so you can check it out.

Woka

[demoti]

thanks for your replys,

although i was hoping there was an event, i'll try to find out what happens when wokawidget sends me an email...

i'll be posting my findings here, but i kinda have a virus-outbreak inhere so it'll be more probably tomorrow...

[demoti]

<code>function checkpm(formname)
{
if (formname.dopreview != true)
{

if (confirm("Request a read receipt for this message?"))
{
formname.receipt.value = 1;
}

}
return validatePost(formname, formname.title.value, 0, 2000);
}
</script>

<form action="private.php" method="post" onsubmit="return checkpm(this)" name="vbform" onreset="vB_RESET(this);">

</code>

this might be usable but i can't submit the form from an other frame...or can i?

also i won't be able to read the textboxvalues (etc) from the vbscript...

[mendhak]

You can submit a form from another frame using js like so:

top.frames.targetframename.document.forms.formname.submit();

[demoti]

better late than never:

when you try to close the page or navigate to the URL the application will display a messagebox that you will lose data if you go on without saving.

the key here seemed to be the onbeforeunload event handler

here is the link: Using ASP.NET to Prompt a User to Save When Leaving a Page.

all glory to XIII(forums.asp.net) who provided me with this info!