Drop Down List and AutoPostBack. Really urgent. Thank You Very Much

Miguel Dias Moura · Apr 5, 2004

Hello,

I have a Drop Down List with 3 options. I want to redirect to a new page
when an options is selected. I don't want to use a button. The redirection
should be fired when the option is selected.

I have an ASP.net / VB page with a Drop Down List named "my select" as
follows:

<asp

ropDownList AutoPostBack="true" ID="myselect" runat="server">
<asp:ListItem value="www.google.com">Google</asp:ListItem>
<asp:ListItem value="www.yahoo.com">Yahoo</asp:ListItem>
<asp:ListItem value="www.macromedia.com">Macromedia</asp:ListItem>
</asp

ropDownList>

Then i have this script:

<script runat="server">

Sub Page_Load(Sender As Object, E As EventArgs)
if myselect.AutoPostBack then
Response.Redirect ("http://" &
myselect.items(myselect.SelectedIndex).Value)
end if
End Sub

</script>

I looked in the .net and tryied several options but until now i wasn't able
to make it work

This seems really simple. I don't know what is going on and i need to
deliver this as soon as possible. Can you help me?

Thank You,
Miguel

Rajiv R · Apr 5, 2004

Hi Miguel,

Use the OnSelectedIndexChanged event of dropdownlist.

<aspropDownList AutoPostBack="true" ID="myselect" runat="server" OnSelectedIndexChanged="myselect_Change">
<asp:ListItem value="www.google.com">Google</asp:ListItem>
<asp:ListItem value="www.yahoo.com">Yahoo</asp:ListItem>
<asp:ListItem

value="www.macromedia.com">Macromedia said:
</aspropDownList>

then you can write the handler as
void myselect_Change(Object sender, EventArgs e) {

}

Bruno Sirianni · Apr 5, 2004

There was already a response in :

03/04/2004 -- Re: Jump Menu (DropDown Menu) in ASP.net. Can someone help
me out?

<script runat=server language=C#>
private void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{

}
}
private void DropDownList1_SelectedIndexChanged(object sender,
System.EventArgs e)
{
if (((DropDownList)sender).SelectedValue != "")
Response.Redirect(((DropDownList)sender).SelectedValue);
}

</script>

<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server" OnLoad="Page_Load">
<asp

ropDownList id="DropDownList1" style="Z-INDEX: 101; LEFT: 184px;
POSITION: absolute; TOP: 184px"
runat="server" AutoPostBack="True"
OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem value="">select one...</asp:ListItem>
<asp:ListItem
value="http://www.bonsalunos.com">item1</asp:ListItem>
<asp:ListItem value="http://www.sapo.pt">item2</asp:ListItem>
<asp:ListItem value="http://www.google.com">item3</asp:ListItem>

</asp

ropDownList>
</form>
</body>

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Drop Down List and AutoPostBack. Really urgent. Thank You Very Much

Miguel Dias Moura

Rajiv R

Bruno Sirianni

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