javascript not working.

Question

1.00/5 (3 votes)

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<script type="text/javascript">
    var Email = document.getElementById('<%=txtemailid.ClientID %>').value;
    function empty()
    {
    if(Email=="")
    {
    alert("Your email address seems incorrect. Please try again.");
       return false;
    }
    }
 </script>

ASP.NET

<asp:Button ID="submit" runat="server" Text="Submit" OnClientClick="return empty();" onclick="submit_Click" />

[Edit]Code block added[/Edit]

Posted 27-Oct-12 1:29am

Umapathi K

Updated 27-Oct-12 2:07am

Thomas Daniels

v2

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OriginalGriff 27-Oct-12 7:42am

So what is happening that shouldn't, or isn't happening that should?
Remember that we can't see your screen, access your HDD, or read your mind.
Use the "Improve question" widget to edit your question and provide better information.

Umapathi K 27-Oct-12 7:54am

nothing happend. jus form getting load thats it

DaveAuld 27-Oct-12 8:09am

What Griff means is, what are you expecting to happen, what are you trying to do that makes you think something is not working! Expand on the details please.

Umapathi K 27-Oct-12 8:12am

when user hits submit button with out enter anything in the 'txtemailid' textbox alerts should throw

Sandeep Mewara 27-Oct-12 11:39am

So you say, you are not getting the 'alert' message?

NAPorwal(8015059) 29-Oct-12 1:15am

Have u tried solution 2 , as it is working fine.

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Mehdi Gholam · Answer 1 · 2012-10-27T02:59:00

Solution 1

Read the following on how to use the getElementById function :http://www.tizag.com/javascriptT/javascript-getelementbyid.php[^]

Posted 27-Oct-12 2:59am

Mehdi Gholam

NAPorwal(8015059) · Answer 2 · 2012-10-27T23:21:00

Hi Umapathi K,

just copy and paste the below code and it will work.

JavaScript

<script type="text/javascript">
   
    function empty()
    {
 var Email = document.getElementById('<%=txtemailid.ClientID %>').value;
    if(Email=="")
    {
    alert("Your email address seems incorrect. Please try again.");
       return false;
    }
    }
 </script>