Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

On post back the value entered to an element using javascript is gone

Posted on 2011-02-12
3
Medium Priority
?
468 Views
Last Modified: 2012-05-11
I have asp:button, whoch on click calls a javascript function to assign the date to a html (p) element. I can see the datetime for a second, but I think on postback the value of the element is gone. How do I make sure after the user clicks on the button the datetime value is still shown. I have attached the code thnaks
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    
    <script type="text/javascript">
        function displayDate() {
            document.getElementById("demo").innerHTML = Date();
        }
</script>
</head>
<body>
    <form id="form1" runat="server">
    
    
<h1>My First Web Page</h1>

<p id="demo"></p>
<asp:Button ID="btn" Text="disp" runat="server" OnClientClick="return displayDate();" />
</form>
</body>
</html>

Open in new window

0
Comment
Question by:TrialUser
  • 2
3 Comments
 
LVL 16

Accepted Solution

by:
BurnieP earned 2000 total points
ID: 34879762
Hi,

Add return false in your javascript function.

I have modified your code below :
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    
    <script type="text/javascript">
      function displayDate() {
        document.getElementById("demo").innerHTML = Date();
        return false;
      }
</script>
</head>
<body>
    <form id="form1" runat="server">
    
    
<h1>My First Web Page</h1>

<p id="demo"></p>
<asp:Button ID="btn" Text="disp" runat="server" OnClientClick="return displayDate();" />
</form>
</body>
</html>

Open in new window

0
 

Author Comment

by:TrialUser
ID: 34879922
oh perfect thx
0
 

Author Closing Comment

by:TrialUser
ID: 34879928
thx
0

Featured Post

Vote for the Most Valuable Expert

It’s time to recognize experts that go above and beyond with helpful solutions and engagement on site. Choose from the top experts in the Hall of Fame or on the right rail of your favorite topic page. Look for the blue “Nominate” button on their profile to vote.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When it comes to write a Context Sensitive Help (an online help that is obtained from a specific point in state of software to provide help with that state) ,  first we need to make the file that contains all topics, which are given exclusive IDs. …
When crafting your “Why Us” page, there are a plethora of pitfalls to avoid. Follow these five tips, and you’ll be well on your way to creating an effective page.
In this tutorial viewers will learn how to position overlapping items using z-index in CSS. They will also learn the restrictions on the z-index property.  Create a new HTML document with an internal stylesheet.: Create a div in CSS and name it Red.…
In this tutorial viewers will learn how to code links for mobile sites that, once clicked, send a call or text to a specified number. For a telephone link (once clicked, calls a number), begin with a normal "<a href=" link tag. For the href, specify…
Suggested Courses

926 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question