Comments on: Nested properties and DataGridColumn

By: DataGridColumn에서 클래스의 내부 속성(Property) 사용하기

DataGridColumn에서 클래스의 내부 속성(Property) 사용하기 — Wed, 27 Jan 2010 07:19:18 +0000

[...] 출처 : Cornel Creanga – Nested properties and DataGridColumn [...]

By: cornel

cornel — Tue, 07 Jul 2009 09:04:12 +0000

Not yet – I have an idea how to do it but I do not have time for further investigations. Maybe in holiday

By: Phil

Phil — Tue, 07 Jul 2009 08:24:24 +0000

That’s pretty cool. I notice that you set editable to false on the column with the nested value. Have you found a way to edit nested properties also?

By: vlad

vlad — Sat, 21 Mar 2009 09:05:19 +0000

Great! Great! Great!
Felicitari!
Mi-au iesit peri albi cu faza asta!

By: Nate Ross

Nate Ross — Tue, 14 Oct 2008 21:07:06 +0000

I recently extended the DataGrid to allow for nested properties because making a custom sort function and a custom label function can get quite tedious for every DataGrid you use with nested object properties. I allow for a DataGridColumn to use dataField="object1.object2.object3.property" or dataField="object1.objectList1[0].object2.objectList2[5].property" for example. Feel free to check it out on my blog.

By: Jeff Paup

Jeff Paup — Thu, 21 Aug 2008 23:41:03 +0000

Thanks for the quick and accurate reply – it works perfectly! Now do I have to have a custom sort? I created one using sortCompareFunction but get the following error: Find criteria must contain at least one sort field value. I read somewhere that I have to intercept the header messages and do my sort based on that — true? Suggestions?

And again, thanks for all your effort — greatly appreciated!

By: cornel

cornel — Thu, 21 Aug 2008 05:34:07 +0000

Hi Jeff,

Add the following import statements (before class definition):

import mx.controls.dataGridClasses.DataGridColumn;
import mx.collections.*;
import mx.collections.errors.ItemPendingError;

Let me know if it works.

By: Jeff Paup

Jeff Paup — Thu, 21 Aug 2008 01:10:07 +0000

I like your solution but am getting the following errors:
Severity and Description Path Resource Location Creation Time Id
1046: Type was not found or was not a compile-time constant: ItemPendingError. justFocused/src DataGridColumnNested.as line 21 1219280733452 25
1180: Call to a possibly undefined method ItemResponder. justFocused/src DataGridColumnNested.as line 22 1219280733452 26

I’m new to Flex and am probably missing something simple. Can you point me in the right direction? Thanks

By: cornel

cornel — Fri, 08 Aug 2008 20:39:07 +0000

Fabio,

Good question, I never had to that – My preference is to use grids for data visualisation and popups to edit the rows. I will study the next week this problem.
Don’t worry about the language, I’m not a native speaker myself

By: cornel

cornel — Fri, 08 Aug 2008 20:34:04 +0000

mc,

Yes, you will have to write lots of functions – and by the way if you are using LCDS with lazy managed associations you will have to take care of that in the functions. “product.company.name” will throw ItemPendingException if the Destination company has lazy set to “true”