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Update combo from getlist.getpage and update textbox

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thor

Joined: 06 Jan 2007
Posts: 1

Posted: Sat Jan 06, 2007 1:27 pm Post subject: Update combo from getlist.getpage and update textbox

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Hi and thanks for a great combo :P

I have a form where I get the form data from a ajax function. I then want to update the combo with getlist.getpage and set the record in the combotextbox. I use this code

Code:

function testcombo() {
pCombo = document.getElementById('w002').object;
// Clear the list and any other selected values.
pCombo.GetList().Clear();
pCombo.GetList().GetPage(0,15,'ajaxrecord');

pCombo.GetList().SetSelectedRow(0);
pCombo.GetTextBox().SetValue(pCombo.GetSelectedRowValues()[pCombo.GetTextBox().GetDataFieldIndex;
}

What goes wrong is of course that the gethandler is not finished when the script is putting row 0 in the textbox and the result is a blank textbox.

I would like to know how to wait until the Getpage is finished, before updating the textbox. This is also the case where we have several comboboxes in same page and we need to know when to start updating next combo to avoid cancel the previous (if not finished)

I have found the GetDatasourceAccessStatus(); but do not understand how to use it. Do not find any doc. on this topic and a sample would be very welcome

Thanks in advance for a.s.a.p. reply :P

Thor

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mike_nitobi

Joined: 30 Oct 2006
Posts: 321

Posted: Tue Jan 09, 2007 12:46 am Post subject:

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Hi Thor,

You can hook into the GetPage callback by adding a function reference to the the list of arguments passed to the GetPage method.

Code:

pCombo.GetList().GetPage(0,15,'ajaxrecord', null, null, myCallBack);

myCallBack() will be called after the XMLHttpRequest initiated in GetPage is complete:

Code:

function myCallBack()
{
pCombo = document.getElementById('w002').object;
pCombo.GetList().SetSelectedRow(0);
pCombo.GetTextBox().SetValue(pCombo.GetSelectedRowValues()[pCombo.GetTextBox().GetDataFieldIndex()]);
}

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