?
Solved

ASP.NET, .NET 2.0, textbox "lost focus" help needed...

Posted on 2006-11-14
2
Medium Priority
?
847 Views
Last Modified: 2013-11-25
Hi all,
I'm having trouble finding an answer and hope you can help.

I have an ASP.NET form (using VS 2005 and .NET 2.0) that has 3 textboxes on it.  I want to be able to add the value of textbox1 to the value of textbox2 and add it to textbox3 on the client side without a trip to the server.

Can you provide a snippet of code that shows how to do something like this?

Thanks,
Terry
0
Comment
Question by:colepc
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 6

Accepted Solution

by:
badalpatel earned 2000 total points
ID: 17944968
u have to write this script

<script language="javascript" type="text/javascript">
function summation()
{
    document.getElementById("textbox3").value = (document.getElementById("textbox1").value)/1 + (document.getElementById("textbox2").value)/1
}
</script>

and on aspx.vb u have to just call this script function like

textbox1.Attributes.Add("onchange", "javascript:summation()")
        textbox2.Attributes.Add("onchange", "javascript:summation()")
0
 

Author Comment

by:colepc
ID: 17947407
Thanks!  That worked great.  Can you point me to a web reference for where I can learn more about what "attributes" are possible.  For example, you show an "onchange" event attribute.  I'd like to explore more of those.

Thanks again for your solution.

Terry
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

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

Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
Whether you've completed a degree in computer sciences or you're a self-taught programmer, writing your first lines of code in the real world is always a challenge. Here are some of the most common pitfalls for new programmers.
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …

765 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