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listbox and selectedvalue urgent

hi,

I am trying to add a value to listbox. i use lstlistbox.items.add(new listitem(value)).

this adds it fine in click event of button, but i need to use the selectedvalue of the listbox again in same event.

as the listbox item doesnt show i cant use selectedvalue. is there a way to first populate the listbox with its selected value then somehow use the value.

thanks

Re: listbox and selectedvalue urgent

I'm sorry but I don't understand your problem.
Lets assume you have the below stated example, it adds a few items to the listbox and after a selection is done, it responds the selected value to the page.....

Is thát what you achieved?

Partial Class _Default

    Inherits System.Web.UI.Page



    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        If Not Page.IsPostBack Then



            For iCnt As Integer = 1 To 5

                Dim lItem As New ListItem

                lItem.Text = String.Format("New Item {0}", iCnt.ToString)

                lItem.Value = iCnt

                Me.ListBox1.Items.Add(lItem)

                lItem = Nothing

            Next iCnt

        End If

    End Sub



    Protected Sub ListBox1_SelectedIndexChanged( _

            ByVal sender As Object, _

            ByVal e As System.EventArgs) _

            Handles ListBox1.SelectedIndexChanged

        HttpContext.Current.Response.Write( _

             String.Format("Selected Value = {0}", _

             CType(sender, ListBox).SelectedValue.ToString))

    End Sub

End Class

pagecode;

<%@ Page 

    Language="VB" 

    AutoEventWireup="false" 

    CodeFile="Default.aspx.vb" 

    Inherits="_Default" %>

<!DOCTYPE 

    html PUBLIC 

    "-//W3C//DTD XHTML 1.0 Transitional//EN" 

    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

</head>

<body>

    <form 

        id="form1" 

        runat="server">

    <div>

        <asp:ListBox 

            ID="ListBox1" 

            runat="server" 

            AutoPostBack="True" />

    </div>

    </form>

</body>

</html>

Re: listbox and selectedvalue urgent

hii

Add the code code in your .aspx

<asp:DropDownList id="ddl1"  runat="server" AutoPostBack="True" AppendDataBoundItems="True"   >   

        <asp:ListItem Selected="True" Value="-1">--Select Me--</asp:ListItem>

        <asp:ListItem Value="1">Value 1</asp:ListItem>

        <asp:ListItem Value="2">Value 2</asp:ListItem>

        

     </asp:DropDownList>

And you can bind additional values at run time from database and can use selected

Private Sub ddl1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddl1.SelectedIndexChanged

       

your code 

    End Sub

Mark as solved if it helps you!!!

Regards

Re: listbox and selectedvalue urgent

can u specify problem