This Artical i will explain How to add item in listbox.
Example
| <%@ Page Language="C#" %> <script runat="server"> protected void Button1_Click(object sender, EventArgs e) { ListBox1.Items.Add(TextBox1.Text.ToString()); } protected void Button2_Click(object sender, EventArgs e) { Label1.Text = "You selected from the ListBox:<br>"; foreach (ListItem li in ListBox1.Items) { if (li.Selected) { Label1.Text += li.Text + "<br>"; } } } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title>Using the ListBox</title> </head> <body> <form id="form1" runat="server"> <div> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="Add an additional item" OnClick="Button1_Click" /><br /><br /> <asp:ListBox ID="ListBox1" runat="server" SelectionMode="multiple"> <asp:ListItem>Hematite</asp:ListItem> <asp:ListItem>Halite</asp:ListItem> <asp:ListItem>Limonite</asp:ListItem> <asp:ListItem>Magnetite</asp:ListItem> </asp:ListBox><br /><br /> <asp:Button ID="Button2" runat="server" Text="Submit" OnClick="Button2_Click" /><br /><br /> <asp:Label ID="Label1" runat="server"></asp:Label> </div> </form> </body> </html> |
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