Hidden Fields

[=?Utf-8?B?TWFubnk=?=]

Hello Folks,

I am having an issue with retrieving value of hidden field in the
codebehind. The value of the control is set using Javascript defined in the
Page Load Event. I have tried putting the code in the Page Init to without
any results. Could someone please assist?

Code Snippet:

<input id="hdnTextBoxD ata" name = "hdnTextBoxData " type="hidden"
runat="server" />

if (!(Page.IsPostB ack))
{
try
{
if (Request.QueryS tring["edit"].Equals("1"))
{
string script = "<script
type=\"text/javascript\">do cument.form1.hd nTextBoxData.va lue =
window.opener.d ocument.getElem entById('hdnTxt 1').value;";
script += " alert(document. form1.hdnTextBo xData.value);";
script += "</" + "script>";

this.Page.Clien tScript.Registe rStartupScript( Page.GetType(), "scr", script);

}
}
catch (Exception ex) { }
}

If you review the code, I have one liner with Alert showing the Value of the
Hidden Field which works fine. However when I write
Response.Write( hdnTextBoxData. Value), it returns an empty string.

Thanks

Manny

[Cowboy \(Gregory A. Beamer\)]

You have to wait until submit to retrieve a value set on client side. It
sounds like you are trying something like this:

if (!(Page.IsPostB ack))
{
try
{
if (Request.QueryS tring["edit"].Equals("1"))
{
string script = "<script
type=\"text/javascript\">do cument.form1.hd nTextBoxData.va lue =
window.opener.d ocument.getElem entById('hdnTxt 1').value;";
script += "
alert(document. form1.hdnTextBo xData.value);";
script += "</" + "script>";

this.Page.Clien tScript.Registe rStartupScript( Page.GetType(), "scr", script);

}
}
catch (Exception ex) { }

Response.Write( hdnTextBoxData. Value);
}

I realize it is not here, but somewhere else. But if you are doing this in
Page_Load or some other event, prior to submit, you will not get the value.

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

Subscribe to my blog
http://feeds.feedburner.com/GregoryBeamer#

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*************** *************** **************
| Think outside the box! |
*************** *************** **************
"Manny" <Ma***@discussi ons.microsoft.c omwrote in message
news:54******** *************** ***********@mic rosoft.com...

Hello Folks,

I am having an issue with retrieving value of hidden field in the
codebehind. The value of the control is set using Javascript defined in
the
Page Load Event. I have tried putting the code in the Page Init to without
any results. Could someone please assist?

Code Snippet:

<input id="hdnTextBoxD ata" name = "hdnTextBoxData " type="hidden"
runat="server" />

if (!(Page.IsPostB ack))
{
try
{
if (Request.QueryS tring["edit"].Equals("1"))
{
string script = "<script
type=\"text/javascript\">do cument.form1.hd nTextBoxData.va lue =
window.opener.d ocument.getElem entById('hdnTxt 1').value;";
script += "
alert(document. form1.hdnTextBo xData.value);";
script += "</" + "script>";

this.Page.Clien tScript.Registe rStartupScript( Page.GetType(), "scr",
script);

}
}
catch (Exception ex) { }
}

If you review the code, I have one liner with Alert showing the Value of
the
Hidden Field which works fine. However when I write
Response.Write( hdnTextBoxData. Value), it returns an empty string.

Thanks

Manny

[Patrice]

This is expected. An ASPX page (server side) does nothing else than
*generating* the content of an HTML page and once done this is the browser
(client side) that will display this page running possibly embedded
JavaScript code...

--
Patrice

"Manny" <Ma***@discussi ons.microsoft.c oma écrit dans le message de groupe
de discussion : 54************* *************** **...icrosof t.com...

Hello Folks,

I am having an issue with retrieving value of hidden field in the
codebehind. The value of the control is set using Javascript defined in
the
Page Load Event. I have tried putting the code in the Page Init to without
any results. Could someone please assist?

Code Snippet:

<input id="hdnTextBoxD ata" name = "hdnTextBoxData " type="hidden"
runat="server" />

if (!(Page.IsPostB ack))
{
try
{
if (Request.QueryS tring["edit"].Equals("1"))
{
string script = "<script
type=\"text/javascript\">do cument.form1.hd nTextBoxData.va lue =
window.opener.d ocument.getElem entById('hdnTxt 1').value;";
script += "
alert(document. form1.hdnTextBo xData.value);";
script += "</" + "script>";

this.Page.Clien tScript.Registe rStartupScript( Page.GetType(), "scr",
script);

}
}
catch (Exception ex) { }
}

If you review the code, I have one liner with Alert showing the Value of
the
Hidden Field which works fine. However when I write
Response.Write( hdnTextBoxData. Value), it returns an empty string.

Thanks

Manny