Question

I am using checkboxlist in my web page as follows:

<asp:CheckBoxList ID="chklstTelpas" runat="server" RepeatDirection="Horizontal" 
                  AutoPostBack="True" Width="594px"
                  OnSelectedIndexChanged="chklstTelpas_SelectedIndexChanged">
    <asp:ListItem Text="TELPAS Speaking" Value="1"></asp:ListItem>
    <asp:ListItem Text="TELPAS Listening" Value="2"></asp:ListItem>
    <asp:ListItem Text="TELPAS Reading" Value="3"></asp:ListItem>
    <asp:ListItem Text="TELPAS Writing" Value="4"></asp:ListItem>
</asp:CheckBoxList>

Now if I check a list item, I would like to apply some background color for that particular selected item. If i uncheck, I would like the background to remain the same color that was initially displayed, or I would like to remove the background color.

Answer 1

You can do something like this

        for (int i = 0; i < chklstTelpas.Items.Count; i++)
        {
            if (chklstTelpas.Items[i].Selected)
            {
                chklstTelpas.Items[i].Attributes.Add("style", "background-color: red;");
            }
            else
            {
                chklstTelpas.Items[i].Attributes.Add("style", "background-color: white;");
            }
        }

This will allow you to color several of the choices. If you use the SelectedIndex it wil only give you the lowest index.