HOw to use __doPostback('','')?????????

Hi 

i use the window.open() javascript function,
then i want to use the __doPostback('','') javascript function to force the page post back
, so that i can use the parameter pass from the child window in the page.ispostback event.

but i try to use __doPostback('','') in my 1.1 .net framework, nothing happen?????
how to use the __doPostback('','') or how to let the page have .postback event?
SelfConfident is get from the Xperience
0
psjie
3/26/2004 12:34:05 AM
asp.net.client-side 24353 articles. 1 followers. Follow

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You need to use the server-side function: Page.GetPostBackEventReference

and tell it what control's event you want to fire.
The __doPostBack('','') won't fire any client-side events because the first parameter, which is the client name of the control raising the event, isn't set.
0
stiletto
3/26/2004 1:17:14 AM
hi stiletto, i'm new for asp.net

can you please tell me the sample of using server-side function: Page.GetPOstBackEventReference ???? or which place i can refer to this?

for the __doPostBack('','') , how can i use to put the first parameter ?????

SelfConfident is get from the Xperience
0
psjie
3/26/2004 1:48:45 AM
I'll need more specifics on page flow before I can be definitive, but here's the MSDN link:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwebuipageclassgetpostbackeventreferencetopic.asp
0
stiletto
3/26/2004 2:53:39 AM
Hi stiletto,

now i describe my page more detail,
1.in the parent window, i use a button to call javascript function:
<script language="javascript">
function GetDate(CtrlName)
{

ChildWindow=window.open('color.aspx?FormName='+ document.forms[0].name+ '&CtrlName='+ CtrlName, "Color","width=500,height=400,top=100,left=200,toobars=no,scrollbars=no,status=no,resizable=no");
__doPostback(CtrlName,'');
} to show a child window which contain a list of color.
2.a child window pop up.
3.after i choose one of the color from the childwindow and i click a button (to call javacript:
<script language="javascript">
function ReturnColor(){
window.close();
window.opener.document.forms["<%= strFormName %>"].elements["<%= strCtrlName %>"].value = "<%= StrSelectedColor %>";

__doPostback("<%= strCtrlName %>",'');
}
</script>
4.the child window closed and get a value(strselectedcolor) from childwindow and put into variable "Ctrl" which is textbox id. AND textbox.text = "strselectedcolor".
All of this is ok if i just the textbox.text.
But i want to change textbox.backcolor, not textbox.text!
thanks!


SelfConfident is get from the Xperience
0
psjie
3/26/2004 3:35:44 AM
Is this a cross-browser application?

If it's IE-only then you should be able to (from your child window):
window.opener.document.all["<%= strCtrlName %>].style.backgroundColor = "<%= StrSelectedColor %>";
to change the textbox's background color.
0
stiletto
3/26/2004 3:57:29 AM
hi stiletto

sorry forget to infrom you that, the StrSelectedColor is a STRING variable, not COLOR variable.
SelfConfident is get from the Xperience
0
psjie
3/26/2004 4:59:46 AM
That's OK the style can be a color name, just change:

window.opener.document.all["<%= strCtrlName %>].style.backgroundColor = "<%= StrSelectedColor %>";
to:
window.opener.document.all["<%= strCtrlName %>].style.backgroundColor = '"<%= StrSelectedColor %>"';
0
stiletto
3/26/2004 7:28:40 PM
Reply:

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