Spread Windows Forms 12.0 Product Documentation
Changing Event (SheetViewCollection)

FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > SheetViewCollection Class : Changing Event
Occurs when a sheet is about to be added, removed, or changed in the collection.
Public Event Changing As CollectionChangeEventHandler
Dim instance As SheetViewCollection
Dim handler As CollectionChangeEventHandler
AddHandler instance.Changing, handler
public event CollectionChangeEventHandler Changing
Event Data

The event handler receives an argument of type CollectionChangeEventArgs containing data related to this event. The following CollectionChangeEventArgs properties provide information specific to this event.

The event handler receives an argument of type CollectionChangeEventHandler containing data related to this event.
This example creates the Changing event for the collection, which occurs when another sheet is added to the collection.
public FarPoint.Win.Spread.SheetViewCollection svc;

fpSpread1.Sheets.Count = 3;
fpSpread1.TabStripPolicy = FarPoint.Win.Spread.TabStripPolicy.Always;
FarPoint.Win.Spread.SheetView sv = new FarPoint.Win.Spread.SheetView();
sv.SheetName = "Added";
svc = fpSpread1.Sheets;
svc.Changing += new System.ComponentModel.CollectionChangeEventHandler(svc_Changing);

public void svc_Changing(object sender, System.ComponentModel.CollectionChangeEventArgs e)
listBox1.Items.Add("Collection Changing");
Friend WithEvents svc As FarPoint.Win.Spread.SheetViewCollection

FpSpread1.Sheets.Count = 3
FpSpread1.TabStripPolicy = FarPoint.Win.Spread.TabStripPolicy.Always
Dim sv As New FarPoint.Win.Spread.SheetView()
sv.SheetName = "Added"
svc = FpSpread1.Sheets

Public Sub svc_changing(ByVal sender As Object, ByVal e As System.ComponentModel.CollectionChangeEventArgs) Handles svc.Changing
ListBox1.Items.Add("Collection Changing")
End Sub
See Also