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ASP .Net Finding a control on the parent window

Using Javascript in ASP .net I am attempting to alter the value of a control on the page that called the current page. The current page is a dialog window.

I am finding the window this way
var d2 = window.parent.document.all;

and referring to the control this way
d2.hidDefaultServiceDetail

For some reason the above returns undefined. The control definitely exists and I have definitely spelt it correctly (I copied and pasted the name). I also can't access any other controls. The control is a text box and is not in a container control of any kind.

Any Ideas?

dante469

Please remember JavaScript is case sensitive

hidDefaultServiceDetail is not same as HIDDEFAULTSERVICEDetail

If the control is in a form... Since it is .Net it most probably is then ref like this...

Example assumes the Form the control is contained within is called Form1 Please update to the name of your FORM if different...

var d2 = window.parent.document.all;
d2.Form1.hidDefaultServiceDetail; 'Where Form1 is the name of the form the control is contained within...

Have Fun,
Dante

JackieLee

ASKER

d2.SupplierSearch is undefined

JackieLee

ASKER

The window is a web form. It's filename is SupplierSearch.aspx

culshaja

Be careful with using document.all and document.Form1 in JavaScript to get access to a form element. If you are accessing a control that is within a UseControl or a repeater it will be prefixed with containercontrol_ and this will cause numerous problems. I would use .getElementByID if you know that you can rely on IE as your target browser. It gets past a lot of problems.

James :-)

JackieLee

ASKER

How would one go about using .getElementByID I can't find it.

dante469

JackieLee,

Thanks for the reply... I may have been ambiguous...

Not the webform name (SupplierSearch.aspx) but the <form> name of the form on that .aspx page ie...

<body>
      <form id="Form1" method="post" runat="server" onsubmit="return(chkuidpwd());">
            <asp:TextBox id="uid" runat="server"></asp:TextBox><BR>
            <asp:TextBox id="pwd" runat="server"></asp:TextBox></P>
            <asp:Button id="aspSubmit" runat="server" Text="aspSubmit" ></asp:Button>
      </form>
</body>

In the above the form is called Form1

Have Fun,
Dante

JackieLee

ASKER

OK. My form id is actually Form1. I tried the following:
d2.Form1.hidDefaultServiceDetail
It is still undefined

JackieLee

ASKER

I just noticed that the current form is also called Form1 so I changed it's id to Form2. Now I get this error when I execute d2.Form1.hidDefaultServiceDetail

'd2.Form1.hidDefaultServiceDetail' is null or not an object

JackieLee

ASKER

window.parent.document.all seems to reference the current window and not the parent window. Is this because it's a dialog window?

_TAD_

what about something like this (using code behind)

in this example I am looking for a textbox

                  foreach(Control ctrl in this.Controls)
                        if(ctrl.GetType()==typeof(TextBox))
                              if (((TextBox)ctrl).ID == "ID")
                                    --Found It

dante469

simply ref as

window.parent.document.Form1.hidDefaultServiceDetail;

or

var parent = window.parent.document;
parent.Form1.hidDefaultServiceDetail;

Have Fun,
dante

JackieLee

ASKER

Dante,

That doesn't work because:
window.parent.document.Form1 is undefined

The question is Why does window.parent.document refer to the current form and not the parent form?

dante469

Sorry... Assumed window.parent was working correctly....

How did you open the child... Is it a frameset???

Have Fun,
Dante

dante469

JackieLee,

Not sure how you are opening child however in anticipation of your answer;

showModelessDialog - allows interactivity between parent and child,

showModalDialog - prevents the parent from directly interacting with the child, the child has the focus, hence the Modal name.

Have Fun,
Dante.

JackieLee

ASKER

It's a modal dialog. I need to be able to parse one piece of information back to the parent. surely it's possible somehow.

ASKER CERTIFIED SOLUTION

billy21

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