Public Sub SetChildVisible( _
   ByVal child As SheetView, _
   ByVal visible As Boolean _
) 

Dim instance As SheetView
Dim child As SheetView
Dim visible As Boolean
 
instance.SetChildVisible(child, visible)

public void SetChildVisible( 
   SheetView child,
   bool visible
)

DataSet ds = new System.Data.DataSet();
DataTable name;
DataTable city;
name = ds.Tables.Add("Customers");
name.Columns.AddRange(new DataColumn[] {new DataColumn("LastName", typeof(string)), new DataColumn("FirstName", typeof(string)),
new DataColumn("ID", typeof(Int32))});
name.Rows.Add(new object[] {"Fielding", "William", 0});
name.Rows.Add(new object[] {"Williams", "Arthur", 1});
name.Rows.Add(new object[] {"Zuchini", "Theodore", 2});
city = ds.Tables.Add("City/State");
city.Columns.AddRange(new DataColumn[] {new DataColumn("City", typeof(string)), new DataColumn("Owner", typeof(Int32)), new
DataColumn("State", typeof(string))});
city.Rows.Add(new object[] {"Atlanta", 0, "Georgia"});
city.Rows.Add(new object[] {"Boston", 1, "Mass."});
city.Rows.Add(new object[] {"Tampa", 2, "Fla."});
ds.Relations.Add("City/State", name.Columns["ID"],
city.Columns["Owner"]);
fpSpread1.ActiveSheet.DataSource = ds;
fpSpread1.ActiveSheet.DataMember = "Customers";
fpSpread1.ActiveSheet.SetColumnWidth(2, 150);
fpSpread1.ActiveSheet.ExpandRow(0, true);

private void button1_Click(object sender, System.EventArgs e)
{
FarPoint.Win.Spread.SheetView sv;
sv = fpSpread1.ActiveSheet.GetChildView(1, 0);
fpSpread1.ActiveSheet.SetChildVisible(sv, false);
}

Dim ds As New System.Data.DataSet
Dim name As DataTable
Dim city As DataTable
name = ds.Tables.Add("Customers")
name.Columns.AddRange(New DataColumn() {New DataColumn("LastName",
Type.GetType("System.String")), New
DataColumn("FirstName",Type.GetType("System.String")), New
DataColumn("ID", Type.GetType("System.Int32"))})
name.Rows.Add(New Object() {"Fielding", "William", 0})
name.Rows.Add(New Object() {"Williams", "Arthur", 1})
name.Rows.Add(New Object() {"Zuchini", "Theodore", 2})
city = ds.Tables.Add("City/State")
city.Columns.AddRange(New DataColumn() {New DataColumn("City",
Type.GetType("System.String")), New DataColumn("Owner",
Type.GetType("System.Int32")),New DataColumn("State",
Type.GetType("System.String"))})
city.Rows.Add(New Object() {"Atlanta", 0, "Georgia"})
city.Rows.Add(New Object() {"Boston", 1, "Mass."})
city.Rows.Add(New Object() {"Tampa", 2, "Fla."})
ds.Relations.Add("City/State", name.Columns("ID"),
city.Columns("Owner"))
FpSpread1.ActiveSheet.DataSource = ds
FpSpread1.ActiveSheet.DataMember = "Customers"
FpSpread1.ActiveSheet.SetColumnWidth(2, 150)
FpSpread1.ActiveSheet.ExpandRow(0, True)

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles Button1.Click
Dim sv As FarPoint.Win.Spread.SheetView
sv = FpSpread1.ActiveSheet.GetChildView(1, 0)
FpSpread1.ActiveSheet.SetChildVisible(sv, False)
End Sub