Hi,

how do you hold the data? Do you using a dataset? And how do you replace the dummies with the real data?

I have written an application that will be show the real child rows at the time when the user is clicking onto the [+] symbol. My datasource is a dataset including dummies and relations. In the expansion event I load the data and replace the dummies with it.

myDataSet.Tables["Orderdetails"].Merge(childDataTable, true, MissingSchemaAction.Add);

The dmmies will be replaced using the Merge function.

Maybe this will help.....

Hi,

 I'm holding my data in BusinessObjects. I'm replacing my dummy in my object.

The possibility "Loading data when [+] is clicked" is in my case not good. I want to load the data complete. But I want to give the user the possibility to view the data which is already loaded.

But thank's for reply

Hi,

what type of lists do you use to hold your business objects? And implementing your business objects the INotifyPropertyChange interface?
If the data loading functions are working well but only the ultragrid will not be updated after changing objects in the lists, maybe it is a problem of notifying property changings to the grid.

Tomorrow I will do some tests because in the near future I'm getting the same problem. Maybe we can solve the problem together :-)

If you know it: I'm using CSLA

My lists implements following interfaces:

IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable, IBindingList, ICancelAddNew, IRaiseItemChangedEvents

But not the INotifyPropertyChange interface.

Thanks for idea with the INotifyPropertyChange. I will test it.