delete selected items from ListBox : The Official Microsoft ASP.NET Forums

<asp:ListBox ID="ListBox1" runat="server" SelectionMode="Multiple">
        <asp:ListItem>Ajay</asp:ListItem>
        <asp:ListItem>Anoop</asp:ListItem>
        <asp:ListItem>Ankush</asp:ListItem>
        <asp:ListItem>Bawa</asp:ListItem>
        <asp:ListItem>Chitra</asp:ListItem>
    </asp:ListBox>
    <br />
    <br />
    <asp:Button ID="Delete" runat="server" Text="Delete Selected" 
        onclick="Delete_Click" />

Code Behind

 protected void Delete_Click(object sender, EventArgs e)
    {
        List<String> li_Items_Selected = new List<string>();

        foreach(ListItem li in ListBox1.Items)
        {
            if (li.Selected)
            {
                li_Items_Selected.Add(li.Value);
            }
        }
        if (li_Items_Selected.Count > 0)
        {
            for (int i = 0; i < li_Items_Selected.Count; i++)
                ListBox1.Items.Remove(li_Items_Selected[i]);
        }
        
    }

hope this will help

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Neethus

Member

15 Points

68 Posts

Re: delete selected items from ListBox

Jan 31, 2013 04:29 AM|LINK

This code is not working. selected items are not deleted

Reply

g_mani

Contributor

2055 Points

586 Posts

Re: delete selected items from ListBox

Jan 31, 2013 04:39 AM|LINK

Hi try this,

call this javascript function in button OnClientClick evenet,

<script type='text/javascript'>
function removeItem(selectbox)
{
var i;
for(i=selectbox.options.length-1;i>=0;i--)
{
if(selectbox.options[i].selected)
selectbox.remove(i);
}
}
</script>

<asp:Button runat="server" Text="Delete Selected" OnClientClick="removeItem(listbox id comes here)"/>

Mani

Please Mark as Answer If this is helpful.

Edited by g_mani on Jan 31, 2013 04:39 AM

Reply

Sujeet Saste

Contributor

3008 Points

572 Posts

Re: delete selected items from ListBox

Jan 31, 2013 04:55 AM|LINK

Try following :

.aspx :

<asp:ListBox ID="lstTest" runat="server" SelectionMode="Multiple" >
            <asp:ListItem>One</asp:ListItem>
            <asp:ListItem>Two</asp:ListItem>
            <asp:ListItem>Three</asp:ListItem>
            <asp:ListItem>Four</asp:ListItem>
            <asp:ListItem>Five</asp:ListItem>
        </asp:ListBox>
        <br />
        <asp:Button ID="btnDel" runat="server" Text="Delete" OnClick="btnDel_Click" />

.cs :

protected void btnDel_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < lstTest.Items.Count; i++)
            {
                if (lstTest.Items[i].Selected == true)
                {                    
                    lstTest.Items.Remove(lstTest.Items[i]);                    
                }
            }

        }

Feel free to ask if have any query remains....

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Edited by Neethus on Jan 31, 2013 05:27 AM
Edited by decker dong - msft on Feb 06, 2013 12:53 AM
Marked as answer by decker dong - msft on Feb 06, 2013 12:53 AM

delete selected items from ListBox RSS

4 replies

Neethus