why does this code return an empty Alert window?

[Phil]

Hi,

This code produces an empty Alert window. No error.
How to get the value into the Alert window?

Thanks
Phil

aspx file (content page):
------------------------
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
asp:Label ID="Label1" runat="server"></asp:Label>

<asp:Button ID="Button1" runat="server" OnClientClick="test()" />
<script language="javascript" type="text/javascript">
function test()
{
var x = document.getElementById('<%=label1.ClientID%>').in nerText;
alert(x)
}
</script>
</asp:Content>
code-behind:
-----------
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Button1.Click
Label1.Text = "Alle velden moeten ingevuld zijn"
End sub

[David Wier]

The label has no text. I tried it - copied and pasted, exactly, except for
adding a "<" bracket in froont of the label, and adding a text property to
it. It worked just fine for me, then.

--
David Wier
MVP/ASPInsider
http://aspnet101.com
http://aspexpress.com
"Phil" <ss*******@fff.dfwrote in message
news:u2*************@TK2MSFTNGP06.phx.gbl...

Hi,

This code produces an empty Alert window. No error.
How to get the value into the Alert window?

Thanks
Phil

aspx file (content page):
------------------------
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
asp:Label ID="Label1" runat="server"></asp:Label>

<asp:Button ID="Button1" runat="server" OnClientClick="test()" />
<script language="javascript" type="text/javascript">
function test()
{
var x = document.getElementById('<%=label1.ClientID%>').in nerText;
alert(x)
}
</script>
</asp:Content>
code-behind:
-----------
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Button1.Click
Label1.Text = "Alle velden moeten ingevuld zijn"
End sub

[Jan]

Hi David. Thanks for repying, but i really don't understand what you mean.
Can you tell me what i have to change in my code?
Thanks
"David Wier" <da********@noSpamhotmail.comschreef in bericht
news:%2***************@TK2MSFTNGP06.phx.gbl...

The label has no text. I tried it - copied and pasted, exactly, except for
adding a "<" bracket in froont of the label, and adding a text property to
it. It worked just fine for me, then.

--
David Wier
MVP/ASPInsider
http://aspnet101.com
http://aspexpress.com
"Phil" <ss*******@fff.dfwrote in message
news:u2*************@TK2MSFTNGP06.phx.gbl...

>Hi,

This code produces an empty Alert window. No error.
How to get the value into the Alert window?

Thanks
Phil

aspx file (content page):
------------------------
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
asp:Label ID="Label1" runat="server"></asp:Label>

<asp:Button ID="Button1" runat="server" OnClientClick="test()" />
<script language="javascript" type="text/javascript">
function test()
{
var x = document.getElementById('<%=label1.ClientID%>').in nerText;
alert(x)
}
</script>
</asp:Content>
code-behind:
-----------
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Button1.Click
Label1.Text = "Alle velden moeten ingevuld zijn"
End sub

[David Wier]

<asp:Label ID="Label1" Text="My Text is Here" runat="server"></asp:Label>

--
David Wier
MVP/ASPInsider
http://aspnet101.com
http://aspexpress.com
"Jan" <uu*****@fff.tywrote in message
news:u7*************@TK2MSFTNGP04.phx.gbl...

Hi David. Thanks for repying, but i really don't understand what you mean.
Can you tell me what i have to change in my code?
Thanks
"David Wier" <da********@noSpamhotmail.comschreef in bericht
news:%2***************@TK2MSFTNGP06.phx.gbl...

The label has no text. I tried it - copied and pasted, exactly, except

for

adding a "<" bracket in froont of the label, and adding a text property

to

it. It worked just fine for me, then.

--
David Wier
MVP/ASPInsider
http://aspnet101.com
http://aspexpress.com
"Phil" <ss*******@fff.dfwrote in message
news:u2*************@TK2MSFTNGP06.phx.gbl...

Hi,

This code produces an empty Alert window. No error.
How to get the value into the Alert window?

Thanks
Phil

aspx file (content page):
------------------------
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
asp:Label ID="Label1" runat="server"></asp:Label>

<asp:Button ID="Button1" runat="server" OnClientClick="test()" />
<script language="javascript" type="text/javascript">
function test()
{
var x = document.getElementById('<%=label1.ClientID%>').in nerText;
alert(x)
}
</script>
</asp:Content>
code-behind:
-----------
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Button1.Click
Label1.Text = "Alle velden moeten ingevuld zijn"
End sub

[Mark Rae]

"Jan" <uu*****@fff.tywrote in message
news:u7*************@TK2MSFTNGP04.phx.gbl...

Can you tell me what i have to change in my code?

<asp:Label ID="Label1" runat="server" Text="Hello world!" />

[Phil]

Ok, thanks, but could you tell me why it doesn't work programmatically like
this:

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Button1.Click Label1.Text = "Hello World"
End sub

"Mark Rae" <ma**@markNOSPAMrae.comschreef in bericht
news:OW**************@TK2MSFTNGP05.phx.gbl...

"Jan" <uu*****@fff.tywrote in message
news:u7*************@TK2MSFTNGP04.phx.gbl...

>Can you tell me what i have to change in my code?

<asp:Label ID="Label1" runat="server" Text="Hello world!" />

[Phil]

It's because the ClientClick will be executed first, and at that moment, the
value is not yet put into 'text' of the label

"Phil" <uu*****@fff.tyschreef in bericht
news:%2****************@TK2MSFTNGP05.phx.gbl...

Ok, thanks, but could you tell me why it doesn't work programmatically
like this:

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Button1.Click Label1.Text = "Hello World"
End sub

"Mark Rae" <ma**@markNOSPAMrae.comschreef in bericht
news:OW**************@TK2MSFTNGP05.phx.gbl...

>"Jan" <uu*****@fff.tywrote in message
news:u7*************@TK2MSFTNGP04.phx.gbl...

>>Can you tell me what i have to change in my code?

<asp:Label ID="Label1" runat="server" Text="Hello world!" />