public virtual void OnItemSelecting(object sender, RadPageViewItemSelectingEventArgs args)
{
if (this.ItemSelecting != null)
{
this.ItemSelecting(sender, args);
}
}
protected internal virtual void SetSelectedItem(RadPageViewItem item)
{
//no need to change selection
if (this.selectedItem == item)
{
return;
}
if (UpdateSelectedItemContent)
{
this.SetSelectedContent(item);
}
RadPageViewItemSelectingEventArgs selectingEventArgs = new RadPageViewItemSelectingEventArgs(this.selectedItem, item);
this.OnItemSelecting(this, selectingEventArgs);
if (selectingEventArgs.Cancel)
{
return;
}
if (this.selectedItem != null)
{
this.selectedItem.IsSelected = false;
}
RadPageViewItem previousItem = this.selectedItem;
this.selectedItem = item;
if (this.selectedItem != null)
{
this.selectedItem.IsSelected = true;
this.header.Text = this.selectedItem.Title;
this.footer.Text = this.selectedItem.Description;
if (this.EnsureSelectedItemVisible)
{
this.EnsureItemVisibleCore(item);
}
}
else
{
this.header.ResetValue(RadItem.TextProperty);
this.footer.ResetValue(RadItem.TextProperty);
}
RadPageViewItemSelectedEventArgs selectedEventArgs = new RadPageViewItemSelectedEventArgs(previousItem, this.selectedItem);
this.OnItemSelected(this, selectedEventArgs);
}
private void tabStripElement_ItemSelecting(object sender, RadPageViewItemSelectingEventArgs e)
{
if (this.suspendStripSelecting > 0)
{
return;
}
TabStripItem nextItem = e.NextItem as TabStripItem;
if (nextItem != null)
{
this.pageViewUpdate = true;
if (!this.SelectTab(nextItem.TabPanel))
{
e.Cancel = true;
}
this.pageViewUpdate = false;
}
else
{
e.Cancel = true;
}
}
protected override void OnPropertyChanged(RadPropertyChangedEventArgs e)
{
base.OnPropertyChanged(e);
if (e.Property.Name == "IsSelected" && (bool)e.NewValue && this.Owner != null)
{
foreach (RadPageViewItem item in this.Owner.Items)
{
if (item != this && item.IsSelected)
{
RadPageViewItemSelectingEventArgs selectingEventArgs = new RadPageViewItemSelectingEventArgs(item, this);
this.Owner.OnItemSelecting(this, selectingEventArgs);
item.IsSelected = false;
}
}
this.Owner.selectedItem = this;
RadPageViewItemSelectedEventArgs selectedEventArgs = new RadPageViewItemSelectedEventArgs(null, this);
this.Owner.OnItemSelected(this, selectedEventArgs);
}
}
