disabling a button server-side then re-enabling client-side breaks button postback
Posted on
16th Feb 2014 07:03 pm by
admin
I have a tabbed container and a button (not in the container) on a page. If the first tab is selected, I want the button enabled. If the second is selected, I want the button disabled. I have created this functionaliity, but I have encountered some odd behavior.
Switching tabs is handled client-side, and therefore, when the tabs are switched, I use something like the following to enable/disable the button client-side based on which tab is selected:view plaincopy to clipboardprint?var saveButton = document.getElementById("<%= btnSave.ClientID %>") if (saveButton) { saveButton.disabled=false; if mytab=="Tab2") { saveButton.disabled=true; } } var saveButton = document.getElementById("<%= btnSave.ClientID %>")
if (saveButton) {
saveButton.disabled=false;
if mytab=="Tab2") {
saveButton.disabled=true;
}
}view plaincopy to clipboardprint? view plaincopy to clipboardprint?This works great but the first problem I run into is, if a control on the second tab (the button is disalbed when this tab is selected) causes a postback, then after the postback the button's state is returned to enabled. This sort of makes sense since the page lifecycle, at this point, knows nothing about what the button state should be. I decided the solution to this would be to check what the current tab is during page load, and if it is the second tab, set the button enabled property to false. In this way, when a postback occurs on the second tab, the button remains disabled. Well, this works to a charm, but I encountered a bizzare side-effect. This works great but the first problem I run into is, if a control on the second tab (the button is disalbed when this tab is selected) causes a postback, then after the postback the button's state is returned to enabled. This sort of makes sense since the page lifecycle, at this point, knows nothing about what the button state should be. I decided the solution to this would be to check what the current tab is during page load, and if it is the second tab, set the button enabled property to false. In this way, when a postback occurs on the second tab, the button remains disabled. Well, this works to a charm, but I encountered a bizzare side-effect.view plaincopy to clipboardprint? view plaincopy to clipboardprint?On the second tab, a postback is caused. The button remains disabled as it should be. I then swith tabs. The client-side code goes into effect and the button client-side disabled property is set to false. However the strange thing is, now the button doesn't work. Clicking on it does not cause a postback and doesn't really do anything. It seems that setting the button enabled property to false and then true server-side, somehow doesn't jive with setting it's disabled property to false on the client. On the second tab, a postback is caused. The button remains disabled as it should be. I then swith tabs. The client-side code goes into effect and the button client-side disabled property is set to false. However the strange thing is, now the button doesn't work. Clicking on it does not cause a postback and doesn't really do anything. It seems that setting the button enabled property to false and then true server-side, somehow doesn't jive with setting it's disabled property to false on the client.view plaincopy to clipboardprint? view plaincopy to clipboardprint?anyone have an idea what is going on?
Your Answer:
Login to answer
96 
11 
Other forums
Preloading images
Posting this question here because I am not sure where this should belong.I am building an asp.net a
MSSQL/PHP
I am tryint to setup a webapplication developed in PHP, Apache2.0 and SQLServer2000 as backend which
redirect standard error and assert (how to?)
How do you redirect standard error and assert?
---
(Why? I am creating an web app and
Displaying an image using echo command
I had done a query on my database, one of the fields being an image reference to a directory where a
POST into Array problem
Hi Chaps,
I have a repeat region, displaying rows of data: jobid, fromtable, translatorcharge
GMail like Chat in ASP.NET
Hi,Can anyone suggest me, how to incorporate GMail like chat in my existing ASP.Net application.I wa
read integers that returns a negative or prints the average
Im trying to finish this homework assignment by tommarow afternoon and I keep getting stuck.
Wr
Get word number x from string?
How can I use a function to loop through a string, and "have a look at" every word in the
Receive Rosettanet Message to SAP 4.6c
Dear all ,
My customer will send the PO details by rosettanet message , Is it
Consuming third party Payment Gateway API from Procedure.
Hi All,
First of all i would like to thank all the people of the oracle forum for providi
