Re: Controls accessing outside tags

#1

"Göran Andersson" <guffa (AT) guffa (DOT) com> wrote

Quote:

tshad wrote:
I tried looped through the Form elements and found that the name of the
textbox is actually - LoginID:txtUserName.

That's odd. That name is not very usable. I would expect the name to be
LoginID$txtUserName and the id to be LoginID_txtUserName. That's how
controls are usually named.

What does the generated html code for the form look like?

Here is the line with the input tag:

<input name="LoginID:txtUserName" type="text" size="25"
id="LoginID_txtUserName" />
<span id="LoginID__ctl0" controltovalidate="LoginID_txtUserName"
evaluationfunction="RequiredFieldValidatorEvaluate IsValid" initialvalue=""
style="color:Red;visibility:hidden;">User Name Required</span>

What is interesting is that the javascript uses the LoginID:txtUserName and
the ID uses the underscore. The trace shows the ":" which is the Name not
the ID.

__PAGE ASP.test_aspx
_ctl0 System.Web.UI.LiteralControl
_ctl1 System.Web.UI.ResourceBasedLiteralControl
myBody System.Web.UI.HtmlControls.HtmlGenericControl
_ctl2 System.Web.UI.LiteralControl
addForm System.Web.UI.HtmlControls.HtmlForm
_ctl3 System.Web.UI.LiteralControl
LoginID ASP.test_ascx
LoginID:_ctl1 System.Web.UI.LiteralControl
LoginID:txtUserName System.Web.UI.WebControls.TextBox
LoginID:_ctl2 System.Web.UI.LiteralControl
LoginID:_ctl0
System.Web.UI.WebControls.RequiredFieldValidator
LoginID:_ctl3 System.Web.UI.LiteralControl
_ctl4 System.Web.UI.LiteralControl
_ctl5 System.Web.UI.LiteralControl
_ctl6 System.Web.UI.LiteralControl

The code that works uses the ":" in the function just not in the inline code
as shown here:

function GetFocus()
{
if (document.getElementById("LoginID:txtUserName") != null)
{
document.getElementById("LoginID:txtUserName").foc us();
}
}

Thanks,

Tom

Quote:

I change the attribute lines to:

Dim a as htmlControl
a = CType(Page.FindControl("myBody"),htmlControl)

a.Attributes.Add("onLoad","onload=document.addForm .LoginID:txtUserName.focus();")

An identifier in Javascript can not contain a colon. If the name really
contains a colon, you would need to use a string to reference it:

onload=document.addForm.elements('LoginID:txtUserN ame').focus();

I am not getting there error now, but I am also not getting focus.

The browser doesn't display Javscript errors by default. In Internet
Explorer they show up as a notice in the status bar. In Firefox you open
the Error Console to see them.

--
Göran Andersson
_____
http://www.guffa.com

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Re: Controls accessing outside tags

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Re: Controls accessing outside tags - 07-26-2007 , 11:59 AM