[neilault]

Hi,

I currently have a web user control (pf_imageselector.ascx) which is dynamically created (any number of times) on a parent web user control (pf_fillitems.ascx) which in turn has been loaded into a webform (default.aspx). On the user control is a text box called txbSelectedImage and a button. On click of the button run's this code:

function OpenChild()
{

var strImageFile;
var WinSettings = "height=580,width=630,status=yes,toolbar=no,menuba r=no,location=no";

window.open("pf_stockimage.aspx", null, WinSettings);

}

Which obviously open a child webform. From here the user can select something from a listbox and the click another button, which then hopefully passes back the selected value to the textbox on the parent user control. Code so far is:

function PassSelectedImage()
{

var lstImages = document.forms[0].lstImages;
var i = lstImages.selectedIndex;

window.opener.document.forms[0].txbSelectedImage.value = lstImages.options[i].value;
window.close();

}

My problem is that I get an erorr stating that above is null or not an object. How do I reference the textbox that is sitting inside the user control (ID is generated at runtime), which is also sittting in another usercontrol (I know the ID of this one) on a webform (default.aspx, which as a form called Form1).

[thuenb]

An easy way to pass params around a site is too use sessions...

For instance...
On the parent page use the following code added to the button click event. Note this code is in vb.net

Code:

Session.item("myVariable") = textbox1.text

On the Child page use the following code added to
' the page load event...

Code:

if not ispostback then
    NewTextBox.Text = Session.item("myVariable")
end if

I now this is an example using a textbox and a string variable, but any variables can be assigned to a session item... Just make sure you aren't loading HUGE amounts of data into session items, and you will be fine.