Dropdown Extender - show drop down list on imagebutton click

Question

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I have a textbox, with a dropdownextender. I want the dropdownextender to show the drop down list contents when the user clicks on an image button?

I can get the textbox and the dropdownextender to work properly (without using code behind).

What do I do on the ImageButton's client click to show the dropdown contents?

XML

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="DateTimePicker.ascx.cs"
    Inherits="DateTimePicker" %>
<%@ Register
    Assembly="AjaxControlToolkit"
    Namespace="AjaxControlToolkit"
    TagPrefix="ajaxToolkit" %>

<asp:TextBox runat="server" ID="dateText" Width="79px" />
<asp:ImageButton runat="Server" ID="Image1" ImageUrl="~/images/Calendar_scheduleHS.png"
    AlternateText="" EnableViewState="False" CausesValidation="false" />
<asp:ImageButton runat="Server" ID="ImageButton1" ImageUrl="~/images/time.png"
    AlternateText="" EnableViewState="False" CausesValidation="false" />
<asp:Panel id="hiddenIntervals" runat="server">
    <asp:DropDownList runat="server" ID="timeIntevals">
        <asp:ListItem>08:00</asp:ListItem>
        <asp:ListItem>08:15</asp:ListItem>
        <asp:ListItem>08:30</asp:ListItem>
        <asp:ListItem>08:45</asp:ListItem>
        <asp:ListItem>09:00</asp:ListItem>
        <asp:ListItem>09:15</asp:ListItem>
        <asp:ListItem>09:30</asp:ListItem>
        <asp:ListItem>09:40</asp:ListItem>
        <asp:ListItem>10:00</asp:ListItem>
    </asp:DropDownList>
</asp:Panel>
<ajaxToolkit:DropDownExtender DropDownControlID="hiddenIntervals" TargetControlID="dateText" runat="server" ID="timeExtender" Enabled="true"></ajaxToolkit:DropDownExtender>
<ajaxToolkit:CalendarExtender ID="calendarButtonExtender" runat="server" TargetControlID="dateText"
    PopupButtonID="Image1" />
<ajaxToolkit:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender1" runat="server"
    TargetControlID="dateText" WatermarkText="dd/mm/yyy" WatermarkCssClass="watermarked" />

Posted 7-Feb-12 3:52am

bushfoot

Updated 7-Feb-12 4:00am

v2

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Comments

zyck 7-Feb-12 9:56am

can you post the code

zyck 7-Feb-12 10:26am

can you clarify your problem?
if clicking the image button will show the dropdown. is that your problem?

3 solutions

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Martin Arapovic · Answer 1 · 2012-02-07T04:24:00

Solution 1

Hi,
From this we can't conclude anything, but I want to suggest you to use jquery datetimepicker plugin for your problem! It is fully configurable and easy to integrate into your code (one line of code only)! All details you can find here!

Posted 7-Feb-12 4:24am

Martin Arapovic

bushfoot · Answer 2 · 2012-02-07T04:28:00

Solution 2

Yes, my question is how do I get the ImageButton click to show the dropdown list contents ?

I want to use the button to save the user from hovering and then clicking the arrow.

Posted 7-Feb-12 4:28am

bushfoot

zyck · Answer 3 · 2012-02-07T04:45:00

Try this Code

JavaScript

<script type="text/javascript">
  
function toggleImageBtn(elemID) {  
  
   var pnl = document.getElementById(elemID);  
  
   if (pnl.style.display == 'block' || pnl.style.display == '')  
      pnl.style.display = 'none';  
   else  
      pnl.style.display = 'block';  
  
   return;  
}  
</script>

ASP.NET

<asp:imagebutton runat="Server" id="ImageButton1" onclientclick="toggleImageBtn('hiddenIntervals')" imageurl="~/images/time.png" alternatetext="" enableviewstate="False" causesvalidation="false" xmlns:asp="#unknown" />