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losing Javasript values on postback

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  2 years ago

  by bubberz

  bubberz

  , United States

  Joined 4 years ago

  Okay, I know this is probably b/c of my javascript ignorance, but @ postback, I lose my javascript created values. I'm assuming it's b/c the view state isn't updated, so when the page posts back, the textbox values just go back to what's set in the "Text" property at design time...which is 0.

  Do I have to register the client script or something?

  I'm trying to do an onblur to have two textboxes the same and a simple division with two fields/textboxes to update a third textbox to save server posts.

   Any help/ideas are appreciated!

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  2 years ago

  by bubberz

  bubberz

  , United States

  Joined 4 years ago
  All these textboxes are asp.net textboxes, and "Enable View State" is true. For my onblur situation, I can use the OnTextChanged in codebehind, but that's a little slow, but if I change it to the javascript it's almost instant, but postback makes the target textbox value back to 0. When I try my button click to do a division, it works, but on postback, the value is back to 0. I can use codebehind, but it's a little slower. I am using an AJAX tabs control with update panels...don't know if that's really an issue there.
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  2 years ago

  by bubberz

  bubberz

  , United States

  Joined 4 years ago

  I'm trying to do two things with javascript to avoid postbacks:

  1. populate a "ReadOnly" text box with another textbox's value onblur (OnTextChanged with codebehind) so that two are in synch, and the "driver" textbox is the "control value" for the read-only textbox.

  2. On a buttom click, I'm trying to calculate a decimal value based off two textbox values.

  I've tried to use the ASP.NET image button's "OnClientClick", and that didn't help either.

  So, even though the values are in an ASP:TextBox, and EnableViewState is set to True, I'll still need to use Hidden fields?

  What's interesting is that in my javascript function, I had to use the following full name for the textboxes since they were in an AJAX tab control: function Synch() { var x=document.getElementById("TabContainer1_TabPanel3_txtParent").value; document.getElementById("TabContainer1_TabPanel3_txtChild").value=x; }

  <script type="text/javascript">
          function Synch()
          {
              var x=document.getElementById("TabContainer1_TabPanel3_txtParent").value;
              document.getElementById("TabContainer1_TabPanel3_txtChild").value=x;
          }

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  2 years ago

  by bubberz

  bubberz

  , United States

  Joined 4 years ago

  Found this, and it's keeping my onblur values now:

  http://geekswithblogs.net/ranganh/archive/2007/05/10/112390.aspx

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  1 year ago

  by naveen.kumar.bangalore

  naveen.kumar.bangalore

  , India

  Joined 1 year ago

  Tank you man !! it worked !
  

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