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aspx_beginners thread: listbox server controls and listitem
Message #1 by "Ben Sanchez" <eljami@h...> on Tue, 30 Jul 2002 20:54:47 -0700
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Hello List!
I was doing one of the Try it Out examples on CH 3 page 110 from the book beginning asp.net 1.0 with c# but I can't make it work. I
downloaded the code from wrox but it still will not work.
it supposed to display the selected item on a label but it does not...
anybody know what is the problem?Thanks,
Ben
<script runat="server" language="C#"> void Page_Load(){ string msg = "You have selected: <br />";
if (list1.Items[0].Selected) {
msg = msg + list1.Items[0].Text + "<br />";} if (list1.Items[1].Selected) { msg=msg + list1.Items[1].Text + "<br
/>";} if (list1.Items[2].Selected){ msg=msg + list1.Items[2].Text + "<br />";} Message.Text=msg;
}</script><html> <head> <title> Drop Down List Example</title> </head> <body>
<asp:label id="Message" runat="server" /> <br /> <form runat="server"> Which city do you wish to look
at hotels for?<br /><br /> <asp:listbox id="list1" runat="server" selectionmode="multiple">
<asp:ListItem>Madrid</asp:ListItem> <asp:ListItem>Oslo</asp:ListItem>
<asp:ListItem>Lisbon</asp:ListItem> </asp:listbox> <br /><br /><br /><br />
<input type="Submit"> </form></body></html>Send and receive Hotmail on your mobile device: Click Here
Message #2 by "Ben Sanchez" <eljami@h...> on Wed, 31 Jul 2002 05:06:00
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Hello List!
I was doing one of the Try it Out examples on CH 3 page 110 from the book
beginning asp.net 1.0 with c# but I can't make it work. I downloaded the
code from wrox but it still will not work.
it supposed to display the selected item on a label but it does not...
anybody know what is the problem?
Thanks,
Ben
<script runat="server" language="C#">
void Page_Load()
{
string msg = "You have selected: <br />";
if (list1.Items[0].Selected) {
msg = msg + list1.Items[0].Text + "<br />";
}
if (list1.Items[1].Selected) {
msg=msg + list1.Items[1].Text + "<br />";
}
if (list1.Items[2].Selected){
msg=msg + list1.Items[2].Text + "<br />";
}
Message.Text=msg;
}
</script>
<html>
<head>
<title> Drop Down List Example</title>
</head>
<body>
<asp:label id="Message" runat="server" />
<br />
<form runat="server">
Which city do you wish to look at hotels for?<br /><br />
<asp:listbox id="list1" runat="server" selectionmode="multiple">
<asp:ListItem>Madrid</asp:ListItem>
<asp:ListItem>Oslo</asp:ListItem>
<asp:ListItem>Lisbon</asp:ListItem>
</asp:listbox>
<br /><br /><br /><br />
<input type="Submit">
</form>
</body>
</html>
Message #3 by Elissa Setarehshenas <elissasetareh@y...> on Wed, 31 Jul 2002 05:27:04 -0700 (PDT)
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Ben,
The book is wrong Page_Load must have the following 2
arguments
void Page_Load(Object sender, EventArgs e)
Once you put that in the code will work.
Elissa
--- Ben Sanchez <eljami@h...> wrote:
> Hello List!
>
> I was doing one of the Try it Out examples on CH 3
> page 110 from the book
> beginning asp.net 1.0 with c# but I can't make it
> work. I downloaded the
> code from wrox but it still will not work.
>
> it supposed to display the selected item on a label
> but it does not...
>
> anybody know what is the problem?
>
> Thanks,
>
> Ben
> <script runat="server" language="C#">
> void Page_Load()
> {
> string msg = "You have selected: <br />";
> if (list1.Items[0].Selected) {
> msg = msg + list1.Items[0].Text + "<br />";
> }
> if (list1.Items[1].Selected) {
> msg=msg + list1.Items[1].Text + "<br />";
> }
> if (list1.Items[2].Selected){
> msg=msg + list1.Items[2].Text + "<br />";
> }
> Message.Text=msg;
> }
> </script>
> <html>
> <head>
> <title> Drop Down List Example</title>
> </head>
> <body>
> <asp:label id="Message" runat="server" />
> <br />
> <form runat="server">
> Which city do you wish to look at hotels
> for?<br /><br />
> <asp:listbox id="list1" runat="server"
> selectionmode="multiple">
> <asp:ListItem>Madrid</asp:ListItem>
> <asp:ListItem>Oslo</asp:ListItem>
> <asp:ListItem>Lisbon</asp:ListItem>
> </asp:listbox>
> <br /><br /><br /><br />
> <input type="Submit">
> </form>
> </body>
> </html>
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