Hi,

I'm adding a new row differently now:

UltraGridBand 

bandC = grdA.DisplayLayout.Bands["C"];
UltraGridRow newRow = bandC.AddNew();

Then I added:

grdC.Rows.Refresh(

RefreshRow.ReloadData, false);

Now the display of the grid is updated immediately :)

Thanks a lot!
Yael

Hi Yael,

If the row is not appearing in the grid, it means that the DataSource is not sending a notification to the grid that a new row was added.

I my example, where I am using a DataSet, there's no way to add a row directly to another row with the syntax you are using here. So my guess is that your data source contains custom objects and you are not properly implementing IBindingList to send the add notification when you call the Add method on your C property. 

So the best thing for you to do is implement IBindingList.

Alternatively, you can tell the grid to update it's display any time you change something in code. To do this, you use the Refresh method on the rows collection.

this.ultraGrid2.Rows.Refresh(RefreshRow.ReloadData, false);

Thanks a lot for your detailed answer!!!

It is working now :)

I have another question on the same issue:

When adding new row to grdC (or UltraGrid2 in your example),
I don't see immediately the new row, but only after I go to another row in grdA, and then get back and I see the new row.

The way I added the row:
B objB = (B)grdA.ActiveRow.ListObject; //the current B row
objB.C.Add(newObj);

The workaround:
I add new row through the binding source and then delete it.

Is there a way to see immediately the newly added row?

Thanks a lot,
Yael

Hi Yael,

I tried this out and it's a bit trickier than I expected. Apparently, in order to get the second grid bound to the grandchild relationship, you have to specific the entire binding hierarchy.

So if your three tables are A, B, and C. And the relations between those tables are AB and BC, then you have to bind the second grid to "A.AB.BC".

I have attached a working sample here so you can check it out.

Hi,

Grids A and C are inside the same container.

I also added ("this" represents the form):

grdA.BindingContext =

this.BindingContext;

grdC.BindingContext =

this.BindingContext;

Still, it doesn't help :(
When activating a different child row (band1 - that belong to table B) in grdA, it has no effect on grdC,
unless it belongs to a different row (-in band0. So the rows in grdC still changing according to the relevant row in band 0).

Any idea?

Thanks!
Yael