Hi,

I've got a webform, which takes customer details in, - if the customers time at their address is less than 3 years, I need to take a previous address, but I don't want the previous adress entry fields visible, if this is not the case, and when the page is first loaded.

 Currently, I'm testing - the previous address fields will eventually be contained in a panel I guess - but for the time being I'm practising with a label.

I've got my form fields txtYears and txtMonths in a normal HTML table - the months text field has AutoPostBack enabled - and these two fields are contained within an UpdatePanel so I dont refresh the whole page (I'd like this to be fluid).  My code behind is simply:

        if (Page.IsPostBack)
        {
            int Years = Convert.ToInt32(txtYears.Text);
            int Months = Convert.ToInt32(txtMonths.Text);
            int TotalMonths = ((Years * 12) + Months);
            if (TotalMonths < 36)
            {
                Label1.Visible = true;
            }
            else
            {
                Label1.Visible = false;
            }
        }

 - eventually I guess I'd like the Label1 to be the Panel, but as the Label is outside of the update panel, it's not being shown (it's invisible at startup) - is there anyway that I can achieve this?

Thanks

I'd probably try and do it just using javascript and css rather than an UpdatePanel. Here's an example in case it helps:

-- aspx page --
<asp:TextBox ID="TextBoxYears" runat="server" onblur="CheckTime();" />
<asp:TextBox ID="TextBoxMonths" runat="server" onblur="CheckTime();" />
<asp:Panel ID="PanelAddress" runat="server" CssClass="hide">
    This is the other address panel
</asp:Panel>

-- javascript --
function CheckTime()
{
    var y = document.getElementById("<%=TextBoxYears.ClientID%>").value;
    var m = document.getElementById("<%=TextBoxMonths.ClientID%>").value;
   
    y = parseInt(y,10);
    m = parseInt(m,10);
    if(isNaN(y)) y = 0;
    if(isNaN(m)) m = 0;
   
    var tot = (y*12) + m;
    var pnl = document.getElementById("<%=PanelAddress.ClientID%>");

    pnl.className = (tot < 36) ? "show" : "hide";
}

-- css --
.hide
{
    display: none;
}
.show
{
    display: block;
}