Petar,

Thanks for the tip. The GroupByRecord gave me a clue, but the final result was easier than tearing the GroupByRecord apart. See below. Hope this helps someone else. Seems like a common thing that should be better documented.

Glenn Long,

Valley Forge, PA

private void DeselectedResourcesGrid_RecordExpanded(object sender, RecordExpandedEventArgs

e)

{

// Some event name. save it for your birthday or something

eventName = e.RoutedEvent.Name.ToString();

// this only shows grouped by record names - pretty damn useless, yeah it's enumerable and you

// can loop through the viewable records, but whoopie - who cares

.DeselectedResourcesGrid.ViewableRecords;

// ok, here we get both group names and the actual records. now we got som'n.

);

// ok, now we got some kind of Infragistics handle - lets get a list of data items from it.

// this actually does jack, i just like using linq. for educational purposes.

{c.DataPresenter.DataItems}.DataItems.ToList());

// But wait, temp / results only contain the object handles, not the child data. we need to get the actual child records

// out of the GroupByRecord items shoved in the temp container

// Since temp returns all of the Groups we only want stuff from the currently expanded group.

// this is represented by the event and what's passed by e.record

;

// there are always two ways to skin the cat.

// stuff will contain our child collection, but they make you dig for it. not good for us lazy folk

// below is an option to pull the child records from the current group right out of the expanded record.

// do you have any kids?

// kool, this gives me all of the child records under my expanded list - wow!

myChildRecords = e.Record.ViewableChildRecords.ToList();

// ok, what do we do with this now? oh sure, just convert it back into the type we were using before the type

// was taken over by the grid record type. ok, forget about casting, that won't work. we need to do it manually

// watch this magic. Infragistics forgot to enter this in the manual

// Create a collection of my type

ASEngine.BusinessObjects.Entities.ResourceDeselects myManyCollection = new ASEngine.BusinessObjects.Entities.ResourceDeselects();

foreach (Infragistics.Windows.DataPresenter.Record rec in myChildRecords)

{

//this is just to verify i am not seeing things

// Add my converted type to my list

myManyCollection.Add((ASEngine.BusinessObjects.Entities.

ResourceDeselect)((Infragistics.Windows.DataPresenter.DataRecord

)(rec)).DataItem);

// ok, pass the plural of my object back to the main class and store in a variable so we can use to update with the column selector checkboxes.

// this will be overwritten each time a group is expanded.

// We do this because infragistics does not limit updates to only those records in view, by default all records are updated.

// Just think - this happens every time a group is expanded! We need to refresh the parent group just in case someone decides to update

// all of the records under this expanded group

}

}

Petar,

Thanks, that helps but ...

GetRecordsInView(

true); provides you with a list of the groups/GroupByRecords and what looks like the first record in each group. What I need are the actual child records under the expanded item.

It looks like I need to get what I see in the GroupByRecord section of the GetRecordsInView(true) returned item. Do you know how to pull the child records out of the GroupByRecord? When I debug and look at the child record description, I see the number, but only parent records. I always find the list of ParentSource records beneath, but the ChildRecords element is always zero.

Thanks,

Glenn