Onchange event for textbox not fiiring inside updatepanel

I have a calendar extender tied to a textbox.  When I select a date from the calendar, it displays the selected date in the textbox.  When I click a submit button, it passes no value.  Any ideas on why the textbox doesn't store the value from the calendar?

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then

            If txtPickUp.Text = "" Then
                txtPickUp.Text = Date.Today
            End If
            If txtDropOff.Text = "" Then
                txtDropOff.Text = Date.Today
            End If

            BuildLocDDL()
            btnSearch.Attributes.Add("onclick", "return ConfirmL();")
        End If
    End Sub

<asp:TableCell>
          <asp:TextBox ID="txtPickUp" runat="server" ReadOnly="true" Width="75px" />
         <asp:CalendarExtender ID="CalS" runat="server" TargetControlID="txtPickUp" PopupButtonID="txtPickUp" />
</asp:TableCell>

Hi. I have a itemtemplate inside a gridview.

<asp:TemplateField HeaderText="Enter OTP">
                        <ItemTemplate>
                            <asp:Label ID="Label2" runat="server"
                                style="font-family: Arial, Helvetica, sans-serif; font-size: x-small"
                                Text="PIN Num:"></asp:Label>
                            &nbsp;<asp:TextBox ID="txtPIN" runat="server" Height="21px" Width="100px"></asp:TextBox>
          &

I am displaying large amount of data in gridview,the gridview placed within updatepanel,every 1sec i am refreshing updatepanel using ajax timer.my problem is while displaying large data the cpu performance is low,pls give idea to increase cpu performance..

Hi,

How can I get all the textboxes inside a create user wizard control using getElementsByTagName().

Below is my JQuery code:

<script type="text/javascript">
        function addLoadEvent(func) {
            var oldonload = window.onload;
            if (typeof window.onload != 'function') {
                window.onload = func;
            } else {
                window.onload = function() {
                    oldonload();
                    func();
                }
            }
        }


        function prepareInputsForHints() {
            var inputs = document.getElementsByTagName("asp:TextBox");
            for (var i = 0; i < inputs.length; i++) {
                inputs[i].onfocus = function() {
                    this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
                }
                inputs[i].onblur = function() {
                    this.parentNode.getElementsByTagName("span")[0].style.display = "none";
                }
            }
        }
        addLoadEvent(prepareInputsForHints);

    </script>

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
       

I've created a composite control that contains several controls, including a textbox. I'm trying to expose the TextChanged event of the textbox as an event on the composite control. I understand that events can be bubbled up the control hierarchy and handled at a higher level, which I've attempted to do, but I can't get the bubbled event to fire. When I drop the control on an aspx I can see the TextChanged event, I can subscribe to the event, but nothing ever happens. Any suggestions? Here is what I think is the relevant code:

// My event
private static readonly object EventTextChanged = new object();

 
EventHandler textChangedHandler = (EventHandler)Events[EventTextChanged];

protected override bool OnBubbleEvent(object source, EventArgs e) 
{   
    bool handled = false;
    
 search textbox with search keyword inside? 
  
hi,
how to make a search txtbox that includes the search keyword and when the user clicks the search keyword disappears

thanks for the help