Question

I have a checkboxlist wich contains a list of services loaded from a database table. Each of these services can only be executed alone or with some other specific services. For example, if I select “Transfer Property” I cannot select “Register” at the same time.

I have a table which contains the relationships between Services and what Services can be selected together with each service (did I explained it right?).

What I need is to Click a service and then Disable/Disallow Checking of all the services that don’t are related to that service, and Re-enable that items when i Uncheck the parent item…

Is there a good way to do this? I mean, is there any way to do this?

Answer 1

First of all, your CheckBoxList will need to have AutoPostBack set to true.

I believe the key to what youre looking for is

   CheckBoxList1.Items.FindByText(service).Enabled = false;

or this works too

   CheckBoxList1.Items.FindByText(service).Attributes.Add("disabled", "disabled"); 

in context, it could look something like this:

    <asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="True" 
        onselectedindexchanged="CheckBoxList1_SelectedIndexChanged">        
    </asp:CheckBoxList>

    protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
    {

        //first reset all to enabled
        for (int i = 0; i < CheckBoxList1.Items.Count; i++)
        {
            CheckBoxList1.Items[i].Attributes.Remove("disabled", "disabled");
        }

        for (int i = 0; i < CheckBoxList1.Items.Count; i++)
        {

            if (CheckBoxList1.Items[i].Selected)
            {
                //get list of items to disable
                string selectedService = CheckBoxList1.Items[i].Text;
                List<string> servicesToDisable = getIncompatibleFor(selectedService);//this function is up to u
                foreach (string service in servicesToDisable)
                {
                    CheckBoxList1.Items.FindByText(service).Attributes.Add("disabled", "disabled");                                                
                }                   
            }
        }
    }