How to get multiple selected values from Listbox in asp.net

We can select multiple values from listbox. Sometime it is needed to select multiple values from listbox while development. I thi s article I will explain how to get multiple values from listbox and display in Label control.

Design the webform as given below:

  <fieldset style="width:450px">

    <legend> Get Multiple values from listBox</legend> 

    Country :

<asp:ListBox ID="lstcountry" runat="server" Width="100px" SelectionMode="Multiple">

            <asp:ListItem>India</asp:ListItem>

            <asp:ListItem>China</asp:ListItem>

            <asp:ListItem>Cuba</asp:ListItem>

            <asp:ListItem>Other</asp:ListItem>

        </asp:ListBox>

        <br /> 

        <br />

<asp:Button

            ID="btnsubmit" runat="server" Text="Get Value" onclick="btnsubmit_Click" /> 

        <asp:Label ID="lblmessage" runat="server"></asp:Label> 

    </fieldset>

ASP.NET Code (C#)

On button click write the below given code (C#):

  protected void btnsubmit_Click(object sender, EventArgs e)

    {

        foreach (int i in lstcountry.GetSelectedIndices())

        {

            lblmessage.Text += lstcountry.Items[i].Value+",";

        }

    }

VB.NET section:

Protected Sub btnsubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handlesbtnsubmit.Click

        For Each i As Integer In lstcountry.GetSelectedIndices()

            lblmessage.Text += lstcountry.Items(i).Value + ","

        Next

    End Sub