list box handling in asp .net

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Hi all,

I want to copy all selected listbox items from one list box to another in client side.how can do this?
regards,.
shefeek

Posted 11-Mar-12 23:18pm

shefeekcm

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Prasad_Kulkarni 12-Mar-12 5:23am

Have you tried anything so far? Post your code so we can help you better..
Use this code:
myListBox x = new myListBox();
x.Items.Add("a");
x.Items.Add("b");
x.Items.Add("c");
myListBox y = x.Clone() as myListBox;
for (int i = 0; i < x.Items.Count; i++)
{
MessageBox.Show(y.Items[i].ToString());
}

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shefeekcm · Accepted Answer · 2012-03-11T23:43:00

HI all,
I have got the answer.

XML

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" 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>
        <script>
    function MoveItem(ctrlSource, ctrlTarget) {
        var Source = document.getElementById(ctrlSource);
        var Target = document.getElementById(ctrlTarget);
        if ((Source != null) && (Target != null)) {
            while ( Source.options.selectedIndex >= 0 ) {
                var newOption = new Option(); // Create a new instance of ListItem
                newOption.text = Source.options[Source.options.selectedIndex].text;
                newOption.value = Source.options[Source.options.selectedIndex].value;

                Target.options[Target.length] = newOption; //Append the item in Target
                Source.remove(Source.options.selectedIndex);  //Remove the item from Source
            }
        }
    }
</script>

</head>
<body>
    <form id="form1" runat="server">
    <div>


<table height="150" width="300">
    <tr>
        <td>
            <asp:ListBox id="ListBox1" runat="server" Height="111px" SelectionMode="Multiple">
                <asp:ListItem Value="1">One</asp:ListItem>
                <asp:ListItem Value="2">Two</asp:ListItem>
                <asp:ListItem Value="3">Three</asp:ListItem>
            </asp:ListBox>
        </td>
        <td>
            <p>
                <input onclick="Javascript:MoveItem('ListBox1', 'ListBox2');" type="button" value="->" />
            </p>
            <p>
                <input onclick="Javascript:MoveItem('ListBox2', 'ListBox1');" type="button" value="<-" />
            </p>

        </td>
        <td>
            <asp:ListBox id="ListBox2" runat="server" Height="111px" SelectionMode="Multiple">
                <asp:ListItem Value="8">Eight</asp:ListItem>
                <asp:ListItem Value="9">Nine</asp:ListItem>
                <asp:ListItem Value="10">Ten</asp:ListItem>
            </asp:ListBox>
        </td>
    </tr>
</table>


    </div>
    </form>
</body>
</html>