Well I wasn't to sure if post this on the javascript forum or here, but since is an error that probably I got because something related to my ASP.Net code I decided to posted here.
Ok my problem is that I need to set focus on a textbox everytime the page is loaded. Maybe you already thinking what I thought at first, that with a textbox.setFocu s() that will do it. Nop this is .Net Framework 1.1 and textbox.setFocu s() didn't exist back then. So I did the other simple thing add a javascript on body onload="documen t.getElementByI d(<%= txtPCode.Client ID %>).focus(). It works on page load but not in postback. I really have try a couple of other things like adding this function in the .vb -
-
Private Sub SetFocus(ByVal ClientID As String)
-
Dim Script As New System.Text.StringBuilder
-
'Dim ClientID As String = FocusControl.ClientID
-
With Script
-
.Append("<script language='javascript'>")
-
.Append("document.getElementById('")
-
.Append(ClientID)
-
.Append("').focus();")
-
.Append("</script>")
-
End With
-
RegisterStartupScript("setFocus", Script.ToString())
-
End Sub
-
and calling it in from the Page_Load like this SetFocus(textbo x.ClientID).
Anyway nothing of this have work to set the focus of the textbox on the page post back.
Anyone have another idea?
Thanks,
Erick
24  3923   Frinavale 9,735
Recognized Expert Moderator Expert
Well I wasn't to sure if post this on the javascript forum or here, but since is an error that probably I got because something related to my ASP.Net code I decided to posted here.
Ok my problem is that I need to set focus on a textbox everytime the page is loaded. Maybe you already thinking what I thought at first, that with a textbox.setFocu s() that will do it. Nop this is .Net Framework 1.1 and textbox.setFocu s() didn't exist back then. So I did the other simple thing add a javascript on body onload="documen t.getElementByI d(<%= txtPCode.Client ID %>).focus(). It works on page load but not in postback. I really have try a couple of other things like adding this function in the .vb
-
-
Private Sub SetFocus(ByVal ClientID As String)
-
Dim Script As New System.Text.StringBuilder
-
'Dim ClientID As String = FocusControl.ClientID
-
With Script
-
.Append("<script language='javascript'>")
-
.Append("document.getElementById('")
-
.Append(ClientID)
-
.Append("').focus();")
-
.Append("</script>")
-
End With
-
RegisterStartupScript("setFocus", Script.ToString())
-
End Sub
-
and calling it in from the Page_Load like this SetFocus(textbo x.ClientID).
Anyway nothing of this have work to set the focus of the textbox on the page post back.
Anyone have another idea?
Thanks,
Erick
You're on the right track Erick.
I have solved this same problem in the past but it is a matter of where you place your JavaScript call... You need to set the focus in the OnLoad in your <body> tag. This means that you have to place your JavaScript in the <head> section of your page.
You'll need something like: -
<script language=javascript type="text/javascript">
-
onload = function()
-
{ /*get all input elements on page */
-
var allinputelements=document.getElementsByTagName('input');
-
var len= A.length;
-
/* setting the focus to the first input element that allows focus*/
-
-
for(var i = 0; i < len; i++)
-
{
-
try{
-
allinputelements[i].focus();
-
break;
-
}
-
catch(error)
-
{/*focus wasn't set*/}
-
}
-
-
}
-
</script>
-
please note that my javascript function is just an example and may not actually work
Instead of setting the focus on the first control that allows focus, you could register a hidden field with the name of the control in your Server Side code and set the focus to that field using the GetElementByID( 'nameOfYourCont rolStoredInTheH iddenFieldYouRe gistered').
Keep trying :)
You'll get it!
Just remember that your JS must be declared in the Head section of your web page in order for it to work on load :)
-Frinny
Well I wasn't to sure if post this on the javascript forum or here, but since is an error that probably I got because something related to my ASP.Net code I decided to posted here.
Ok my problem is that I need to set focus on a textbox everytime the page is loaded. Maybe you already thinking what I thought at first, that with a textbox.setFocu s() that will do it. Nop this is .Net Framework 1.1 and textbox.setFocu s() didn't exist back then. So I did the other simple thing add a javascript on body onload="documen t.getElementByI d(<%= txtPCode.Client ID %>).focus(). It works on page load but not in postback. I really have try a couple of other things like adding this function in the .vb
-
-
Private Sub SetFocus(ByVal ClientID As String)
-
Dim Script As New System.Text.StringBuilder
-
'Dim ClientID As String = FocusControl.ClientID
-
With Script
-
.Append("<script language='javascript'>")
-
.Append("document.getElementById('")
-
.Append(ClientID)
-
.Append("').focus();")
-
.Append("</script>")
-
End With
-
RegisterStartupScript("setFocus", Script.ToString())
-
End Sub
-
and calling it in from the Page_Load like this SetFocus(textbo x.ClientID).
Anyway nothing of this have work to set the focus of the textbox on the page post back.
Anyone have another idea?
Thanks,
Erick
This looks a lot like what you have already tried but this code works for me. Put this in your page_load event. - Page.RegisterStartupScript("SetFocus", ("<script>document.getElementById('" + (txtfirstName.ClientID + "').focus();</script>")))
Nathan
Thanks, but neither worked.
I don't know what else to try.
Frinavale 9,735
Recognized Expert Moderator Expert
Thanks, but neither worked.
I don't know what else to try.
Please post your exact code so that we can see what you have done.
I don't know why it wouldn't have worked for you.
We'll get you through this :)
-Frinny
Plater 7,872
Recognized Expert Expert
You could try viewing the source on say a google page and seeing what they do?
Frinavale 9,735
Recognized Expert Moderator Expert
I did mention that the code I posted wasn't working 100%.
If you had copied and pasted into your code it would not have worked.
Did you look at the error that was generated by this JavaScript code?
This should probably correct the mistake: -
<script language=javascript type="text/javascript">
-
onload = function()
-
{ /*get all input elements on page */
-
var allinputelements=document.getElementsByTagName('in put');
-
var len= allinputelements.length;
-
/* setting the focus to the first input element that allows focus*/
-
for(var i = 0; i < len; i++)
-
{
-
try{
-
allinputelements[i].focus();
-
break;
-
}
-
catch(error)
-
{/*focus wasn't set*/}
-
-
}
-
}
-
</script>
-
Can you see what I changed?
I still haven't tested this but I'm pretty sure it'll work now.
You're still going to have to put it in the <head> section of your HTML.
-Frinny
Plater 7,872
Recognized Expert Expert
I am a little confused. Do all the html elements not still have the .focus() in javascript? -
<body onload="myobj.focus()">
-
That seems like it should work regardless of postback behavior?
(Unless of course your making behind the scenes calls ala AJAX) http://javascript.internet.com/page-...us-onload.html Frinavale 9,735
Recognized Expert Moderator Expert
I am a little confused. Do all the html elements not still have the .focus() in javascript?
-
<body onload="myobj.focus()">
-
That seems like it should work regardless of postback behavior?
(Unless of course your making behind the scenes calls ala AJAX)
http://javascript.internet.com/page-...us-onload.html
Some objects (like hidden fields) don't let you set the focus on them though. That's why there's a Try/Catch block in the loop through all the input elements in my JavaScript function.
But you're right, it should work regardless of the postback behaviour when used like this (with the exception to asynchronous requests to the server using partial page update of course).
Plater 7,872
Recognized Expert Expert
Why all this talk of hidden textboxes?
He knows the name of the textbox.
It's not hidden.
mynothiddentext box.focus()
(Assuming one uses the NAME property, otherwise you'll need the getElementById( ))
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