Checkbox event handler not firing

Hi, I've got a list of checkbox's that when the user selects/ deselects them the OnSelectedIndexChanged is fired and the value of the checkbox(s) should be copied into the listbox. However the eventhandler isn't being triggered. This is what I have so far: aspx page:
<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Questionnaire.aspx.cs" Inherits="Questionnaire" Title="Untitled Page" %>
aspx page:

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Questionnaire.aspx.cs" Inherits="Questionnaire" Title="Untitled Page" %>

Server">

cs file:

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class Questionnaire : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    public void CheckBoxList1_CheckedChanged(object sender, EventArgs e)
    {
        //ListItem litem;
        //litem.Value = this.Items(
        object i;
        FileSelectedListBox.Text = "

Selected Items(s):

";
        for (int i = 0; i <= CheckBoxList1.Items.Count - 1; i++)

            if (CheckBoxList1.Items(i).Selected)
            {
                FileSelectedListBox.Text += CheckBoxList1.Items(i).Text + "
";
            }

        //FileSelectedListBox.Items.Add(CheckBoxList1.Text);
    }
}

Any help would be much appreciated...

Thanks J

Here's the solution given by Jason Meckley (Tek-Tips forum):
public partial class Questionnaire : System.Web.UI.Page
{
    public void CheckBoxList1_CheckedChanged(object sender, EventArgs e)
    {
        FileSelectedListBox.Text = "

Selected Items(s):

";
        foreach(ListItem item in CheckBoxList1.Items)
        {
            if (item.selected)
            {
                FileSelectedListBox.Items.Add(New ListItem(item.Value, item.Text));
            }
            else
            {
                ListItem toRemove = null;
                foreach(ListItem listedItem in FileSelectedListBox.Items)
                {
                     if(listedItem.Value == item.Value)
                     {
                         toRemove = listedItem;
                         break;
                     }
                }
                if (toRemove != null)
                {
                    FileSelectedListBox.Items.Remove(toRemove);
                }
            }
        }
    }
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Julie Gill19y ago
Here's the solution given by Jason Meckley (Tek-Tips forum):
public partial class Questionnaire : System.Web.UI.Page
{
    public void CheckBoxList1_CheckedChanged(object sender, EventArgs e)
    {
        FileSelectedListBox.Text = "
Selected Items(s):
";
        foreach(ListItem item in CheckBoxList1.Items)
        {
            if (item.selected)
            {
                FileSelectedListBox.Items.Add(New ListItem(item.Value, item.Text));
            }
            else
            {
                ListItem toRemove = null;
                foreach(ListItem listedItem in FileSelectedListBox.Items)
                {
                     if(listedItem.Value == item.Value)
                     {
                         toRemove = listedItem;
                         break;
                     }
                }
                if (toRemove != null)
                {
                    FileSelectedListBox.Items.Remove(toRemove);
                }
            }
        }
    }
}
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