Web Forms :: How To Copy Multiple Item From ListBox1 To ListBox2
Dec 20, 2010
i want to know how to copy multiple items from Listbox1 to Listbox2.i tried in single item copy it's working but i want to know multiple items to copy.
here is my code..
.aspx:
<%@ 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"> xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.style1
{
width: 65%;
height: 261px;
}
.style2
{
width: 64px;
}
.style3
{
width: 46px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td rowspan="4">
<asp:ListBox ID="lstLeft" runat="server" AppendDataBoundItems="True"
Height="285px" SelectionMode="Multiple" Width="213px">
<asp:ListItem>10th</asp:ListItem>
<asp:ListItem>Diploma</asp:ListItem>
<asp:ListItem>12th</asp:ListItem>
<asp:ListItem>UG</asp:ListItem>
<asp:ListItem>PG</asp:ListItem>
</asp:ListBox>
</td>
<td>
</td>
<td rowspan="4">
<asp:ListBox ID="lstRight" runat="server" Height="286px"
SelectionMode="Multiple" Width="213px"></asp:ListBox>
</td>
</tr>
<tr>
<td>
<asp:Button ID="butAdd" runat="server" onclick="butAdd_Click" Text="-->"
Width="61px" />
</td>
</tr>
<tr>
<td>
<asp:Button ID="butRemove" runat="server" onclick="butRemove_Click"
Text="<--" Width="63px" />
</td>
</tr>
<tr>
<td>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
<html
aspx.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
ListItem Item = new ListItem();
protected void Page_Load(object sender, EventArgs e)
{
}
protected void butAdd_Click(object sender, EventArgs e)
{
if (lstLeft.SelectedIndex > -1)
{
if (lstRight.Items.FindByValue(lstLeft.SelectedItem.Text) == null)
{
Item.Text = lstLeft.SelectedItem.Value;
Item.Value = lstLeft.SelectedItem.Text;
lstRight.Items.Add(Item);
lstLeft.Items.Remove(lstLeft.SelectedItem);
}
}
}
protected void butRemove_Click(object sender, EventArgs e)
{
if (lstRight.SelectedIndex > -1)
{
Item.Text = lstRight.SelectedItem.Value;
Item.Value = lstRight.SelectedItem.Text;
lstLeft.Items.Add(Item);
lstRight.Items.Remove(lstRight.SelectedItem);
}
}
}
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