Custom DropDownList

In the test page you can see:

List list = new
List();
list.Add(new CustomerDropdownList.ValueName("0","-"));
for(int i=0;i<=31;i++)
{
list.Add(new CustomDropDownList(i.ToString(), i.ToString()));
}

CustomDropDownList1.KeyValues = list;

In this way you create a list which can be use the source for the customdropdown list. You add items to a list and those items contain key and value for the dropdown. Then you bind it to the CustomDropDownList added in your page.

Hi, Thanks what you have is explained is sort of what I am doing except I am pulling data in from a database - see below for the code (I've omitted the connection string) My difficulty is I am not 'seeing' how to grab the value the user selects. Somehow I need get the value or text which populates the 'textbox' I cant seem to add any useful code function in asp.net code page, neither can I add a client onclick, that is what I need help with thanks. I can of course use document.getElementById("") etc, but I would like something where I don't have to 'pre know' the id? and I would like to grab the value via Asp.code nut without runat that isn't going to be easily possible. I could possibly run a javasc function to grab the value from the standard textbox and to place it into a hidden asp.control? Here for clarity is my datasource code:

Dim list As New List(Of CustomDropDownList.ValueName)

Dim sql = "SELECT id, model as NList, pos FROM model ORDER BY pos, Model"

Dim conn As New SqlConnection(connstring)
Dim objDR As SqlDataReader
Using Cmd As New SqlCommand(sql, conn)
conn.Open()
objDR = Cmd.ExecuteReader()
While objDR.Read()
list.Add(New CustomDropDownList.ValueName(objDR("id"), objDR("NList")))
End While
End Using

CustomDropDownList1.KeyValues = list

HI,

Then you can just do
CustomDropDownList1.SelectedValue or
CustomDropDownList1.SelectedText.
Depends on what you need.

Hi thanks - was just on the point of saying this dunderhead had realised that when you sent this reply. Thanks. Also, if anyone is interested and haven't worked it out for them selves a stripy background can be applied thus: Set the panel background colour - I used white - then add these 2 CSS statements:
.ctrl_Panel div:last-child { border-bottom: 1px solid #DDD; }
.ctrl_Panel div:nth-child(even) { background: #D7E8F0; color:black; }

Use with an update panel. There seemed to be a problem with use via an Asp update panel. It looked as if the javascript code used within the control doesn't reattach after a partial page reload so the drop part didn't 'open'. Without a panel then it functions fine. In my experiment I was using a textbox to apply a filter to the original sql used to populate the control, but with the update panel this ceased to function, and like I said the control failed to dropdown. Adding an AscPostBack triggers etc didn't solve it - BUT the postback trigger did so we are up an cooking on gas. I still think this is actually a good control. Regards