TextBox value and Javascript

[Hardy Wang]

Guys,
I have a web form with some <Asp:TextBox> controls, on some condition, I
need to trigger a client side JavaScript to clean all values of these boxes,
like below:

function DisableForm() {
document.getElementById("UserCtrl_Text_97").value = "";
document.getElementById("UserCtrl_Text_97").disabl ed = true;

document.getElementById("UserCtrl_Text_98").value = "";
document.getElementById("UserCtrl_Text_98").disabl ed = true;

document.getElementById("UserCtrl_Text_99").value = "";
document.getElementById("UserCtrl_Text_99").disabl ed = true;

document.getElementById("UserCtrl_Text_100").value = "";
document.getElementById("UserCtrl_Text_100").disab led = true;
}

The problem is, when I click "Save" button, all original data with these
text boxes are posted to server, instead of empty values.

Anybody knows why?

--
WWW: http://hardywang.1accesshost.com
ICQ: 3359839
yours Hardy

[William F. Robertson, Jr.]

When you disable a control, its values are not posted back. So the control
is pulling its previous value from viewstate.

HTH,

bill
"Hardy Wang" <ha*******@hotmail.com> wrote in message
news:uB**************@tk2msftngp13.phx.gbl...

Guys,
I have a web form with some <Asp:TextBox> controls, on some condition, I need to trigger a client side JavaScript to clean all values of these boxes, like below:

function DisableForm() {
document.getElementById("UserCtrl_Text_97").value = "";
document.getElementById("UserCtrl_Text_97").disabl ed = true;

document.getElementById("UserCtrl_Text_98").value = "";
document.getElementById("UserCtrl_Text_98").disabl ed = true;

document.getElementById("UserCtrl_Text_99").value = "";
document.getElementById("UserCtrl_Text_99").disabl ed = true;

document.getElementById("UserCtrl_Text_100").value = "";
document.getElementById("UserCtrl_Text_100").disab led = true;
}

The problem is, when I click "Save" button, all original data with these
text boxes are posted to server, instead of empty values.

Anybody knows why?

--
WWW: http://hardywang.1accesshost.com
ICQ: 3359839
yours Hardy