Selecting a Child Row in a Hierarchical RadGrid Programmatically

[Jonathan]

Hi,

I'm using RadControls version: 2010.Q3.1109.

I'm trying to select a child row in a Hierarchical RadGrid programmatically, but I'm having a world of woes. I've scoured Telerik's resources and this forum and I haven't seen an example of this for the RadAJAX Grid control.

Here's the code I'm trying to use:

RadGrid3.MasterTableView.Items(j).ChildItem.NestedTableViews(0).Items(i).Selected = True

However, I'm getting an ArgumentOutOfRangeException when I use this code, even when I set:

RadGrid3.MasterTableView.Items(j).ChildItem.NestedTableViews(0).HierarchyDefaultExpanded = True

The values for integer variables j and i are perfectly valid. If I should use:

RadGrid3.MasterTableView.HierarchyDefaultExpanded = True

...then it will work, but then every child record of every parent record in the table is expanded and that's not what I want. I only want the one parent record to be expanded — not all of them.

I can select the parent record just fine with:

RadGrid3.MasterTableView.Items(j).Selected = True

I'm at wits end. Your help would be greatly appreciated.

Jonathan

[Jonathan]

Ok, I solved the problem. All I had to do was this:

RadGrid3.MasterTableView.Items(j).FireCommandEvent("ExpandCollapse", String.Empty)

before I called this:

RadGrid3.MasterTableView.Items(j).ChildItem.NestedTableViews(0).Items(i).Selected = True

This expands only the parent record in question instead of expanding all the parent records with HierarchyDefaultExpanded.

Hopefully this will be useful to someone.

Regards,
Jonathan.