private void SelectNextAvailablePage(KryptonPage begin)
{
// Generate event to show it is now deselected
OnDeselected(new KryptonPageEventArgs(begin, Pages.IndexOf(begin)));
KryptonPage newSelection = null;
KryptonPage firstEnabled = null;
KryptonPage firstDisabled = null;
// Start the search by moving forwards
bool forward = true;
// Start searching from the provided page
KryptonPage start = begin;
// Process all pages except the current one to find available pape
for (int i = 0; i < Pages.Count - 1; i++)
{
KryptonPage next;
// Are we already at the last page in the pages collection?
if (Pages.IndexOf(start) == (Pages.Count - 1))
{
// Then need to reverse searching direction
forward = false;
// Next page is the one before the beginning page
next = Pages[Pages.IndexOf(begin) - 1];
}
else
{
// Otherwise just move to the next page in sequence
next = Pages[Pages.IndexOf(start) + (forward ? 1 : -1)];
}
// Can only select a visible page
if (next.LastVisibleSet)
{
// Track the first found enabled and disabled pages found
if (next.Enabled && (firstEnabled == null))
firstEnabled = next;
else if (!next.Enabled && (firstDisabled == null))
firstDisabled = next;
// Create event information
KryptonPageCancelEventArgs args = new KryptonPageCancelEventArgs(next, Pages.IndexOf(next));
// Disabled pages default to not becoming selected
args.Cancel = !next.Enabled;
// Give event handlers a chance to cancel the selection of the new page
OnSelecting(args);
// Does this page want the selection?
if (!args.Cancel)
{
newSelection = next;
break;
}
}
// Move forward a page for next loop
start = next;
}
// If no page wants the new selection
if (newSelection == null)
{
// Then force to the first enabled page
if (firstEnabled != null)
newSelection = firstEnabled;
else
{
// Nothing enabled, so force to first disabled page
if (firstDisabled != null)
newSelection = firstDisabled;
}
}
// Use new selection
_selectedPage = newSelection;
// If a new selection was made
if (SelectedPage != null)
{
// Generate event to show it is now selected
OnSelected(new KryptonPageEventArgs(SelectedPage, SelectedIndex));
}
// Generate the event that can be data bound
OnSelectedPageChanged(EventArgs.Empty);
}
/// <summary>
/// Raises the Selecting event.
/// </summary>
/// <param name="e">A KryptonPageCancelEventArgs containing event details.</param>
protected virtual void OnSelecting(KryptonPageCancelEventArgs e)
{
if (Selecting != null)
Selecting(this, e);
}
private void SelectFirstAvailablePage()
{
KryptonPage newSelection = null;
KryptonPage firstEnabled = null;
KryptonPage firstDisabled = null;
// Process all pages
for (int i = 0; i < Pages.Count; i++)
{
// Get the page to examine
KryptonPage next = Pages[i];
// Can only select a visible page
if (next.LastVisibleSet)
{
// Track the first found enabled and disabled pages found
if (next.Enabled && (firstEnabled == null))
firstEnabled = next;
else if (!next.Enabled && (firstDisabled == null))
firstDisabled = next;
// Create event information
KryptonPageCancelEventArgs args = new KryptonPageCancelEventArgs(next, Pages.IndexOf(next));
// Disabled pages default to not becoming selected
args.Cancel = !next.Enabled;
// Give event handlers a chance to cancel the selection of the new page
OnSelecting(args);
// Does this page want the selection?
if (!args.Cancel)
{
newSelection = next;
break;
}
}
}
// If no page wants the new selection
if (newSelection == null)
{
// Then force to the first enabled page
if (firstEnabled != null)
newSelection = firstEnabled;
else
{
// Nothing enabled, so force to first disabled page
if (firstDisabled != null)
newSelection = firstDisabled;
}
}
// Use new selection
_selectedPage = newSelection;
// If a new selection was made
if (SelectedPage != null)
{
// Generate event to show it is now selected
OnSelected(new KryptonPageEventArgs(SelectedPage, SelectedIndex));
}
// Generate the event that can be data bound
OnSelectedPageChanged(EventArgs.Empty);
}
private void kryptonNavigator1_Selecting(object sender, KryptonPageCancelEventArgs e)
{
AddOutput("Selecting \t\t '" + e.Item.Text + "'");
}
