ASP.Net/Language Basics/Select
Select the value of asp:DropDownList Selected Item
<source lang="csharp">
<%@ Page Language="VB" %> <script runat="server">
Sub DropDownList1_SelectedIndexChanged(sender As Object, e As EventArgs) Select Case DropDownList1.SelectedItem.Value Case 0: Label1.Text = String.Empty " Reset the Label1.Text Case 1: Label1.Text = "You got Grade E!" Case 2: Label1.Text = "You got Grade D!" Case 3: Label1.Text = "You got Grade C!" Case 4: Label1.Text = "You got Grade B!" Case 5: Label1.Text = "You got Grade A!" End Select End Sub
</script> <html> <head> </head> <body>
<form runat="server">
<asp:DropDownList id="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"> <asp:ListItem Value="0" Selected="True">- Please select a range of score -</asp:ListItem> <asp:ListItem Value="1">0 - 20</asp:ListItem> <asp:ListItem Value="2">21 - 40</asp:ListItem> <asp:ListItem Value="3">40 - 60</asp:ListItem> <asp:ListItem Value="4">61 - 80</asp:ListItem> <asp:ListItem Value="5">81 - 100</asp:ListItem> </asp:DropDownList>
<asp:Label id="Label1" runat="server"></asp:Label>
</form>
</body> </html>
</source>