Comments on: SharePoint Lookup field: how does it work and how to add JavaScript event handler function to it?

By: Ben

Ben — Mon, 07 Nov 2011 20:22:46 +0000

ok, I put the 1.7 jquery library in the layouts folder where the 1.4.4 one was, updated the link in the masterpage to reference the new library.. and re deployed.. I’m not noticing any change on the lookup field with over 20 list items.. and there are two lookup columns on the editform.aspx page..

By: Ben

Ben — Mon, 07 Nov 2011 18:29:32 +0000

ok.. hold up.. I don’t think I have a reference to the jquery library in the master page.. or I think that is missing.. I’m looking into how to do that.. and redeploy my master page..

By: Ben

Ben — Mon, 07 Nov 2011 17:53:49 +0000

also.. there was a little adlib .. I didn’t have a ribbon in the editform.aspx to get to the edit html source.. so I made a new page.. added a content editor web part.. edited the source.. pasted the code.. then I exported the webpart, uploaded it with a new name.. and on the editform.aspx page, I added the custom content editor web part.. I also tried moving the webpart below the editform webpart that is on the editform.aspx page.

By: Ben

Ben — Mon, 07 Nov 2011 17:50:53 +0000

I’m using sharepoint 2010..

By: Ben

Ben — Mon, 07 Nov 2011 17:44:07 +0000

So I tried this.. it didn’t work.. or my implementation didn’t work.. lol

I tried as is.. then I tried again where I replaced all instances of ’20+ Lookup’ with the display name of my column .. like ‘Companies Lookup’ or something like that..

By: Rupesh

Rupesh — Sat, 21 May 2011 08:37:38 +0000

Nice post Boris. Thanks for the clarity and solution.

Cheers.

By: Den

Den — Fri, 20 May 2011 16:03:30 +0000

Hi.
Great blog, by the way. I have just started using sharepoint (old dog trying to learn new tricks) and i find myself in need of having a label on a form change dynamically depending on the content of a pulldown on the same form. can this code be applied to this issue, and if so can you point me in the right direction? Thanks in advance

By: Bijay

Bijay — Tue, 03 May 2011 11:53:18 +0000

A link to understand look up column
http://www.fewlines4biju.com/2011/05/look-up-column-in-sharepoint-2010.html

By: Andrew Wolfe

Andrew Wolfe — Tue, 05 Apr 2011 15:28:47 +0000

Thanks very much for this. It may be useful in some situations however it is still a bit of a nightmare.

The onpropertychange event fires several times during a dropdown change. You also can’t use this information to set another dropdown as (I think) only one of them can be on the go at a time. In the end I’ve had to hook my onchange to another field (could have used a button) I guess. I’ve got a car and I’m copying values between the Near Side Front and the other wheels. In the end I’ve had to use do something like the following which opens up each dropdown in turn, sets it value and shuts it down. This big dropdowns are a nightmare, I wish they hadn’t used them:

var myNSFWidth = getField(‘input’,'NSF Width’)
ShowDropdown(myNSFWidth.id); //this function is provided by SharePoint
var optNSF=document.getElementById(myNSFWidth.opt);
var optNSFIndex=optNSF.selectedIndex;
OptLoseFocus(optNSF); //this function is provided by SharePoint

var myOSFWidth = getField(‘input’,'OSF Width’)
ShowDropdown(myOSFWidth.id); //this function is provided by SharePoint
var optOSF=document.getElementById(myOSFWidth.opt);
optOSF.selectedIndex = optNSFIndex;
OptLoseFocus(optOSF); //this function is provided by SharePoint

By: question

question — Tue, 22 Feb 2011 09:51:34 +0000

The event seems to be fired many times (also onload), not only when you click the dropwdown. Also fired when start writing and filtering the values, not only on doubleclick. Have you experienced this problem?