GridGroupingControl: How to update ?

[Administrator]

I bind datasource (dataset) to control at design-time, after I merge another dataset, changes didn''t appear in control window.
Please tell me how can I update control ?

[Administrator]

First try

this.gridGroupingControl1.Refresh()

If that does not do it, try

this.gridGroupingControl1.TableControl.Reinitialize();

[Administrator]

The problem appears when I make such binding:
DataSource = dataset1;
DataMember = table1.relation_to_table2;

If I write:
DataSource = dataset1.table2;
DataMember = null;
all is OK.

[Administrator]

Is it possible such binding ?

[Administrator]

Try

DataSource = table1;
DataMember = relation_to_table2;