private void SelectiveSelection(int iIndex)
{
// This is a special case and will be used when the user clicks on an item
// while the control key is pressed or presses the space bar button while an
// item has the focus.
// unfocus the previously focused item
if (focusedIndex >= 0 && focusedIndex < items.Count)
items[focusedIndex].Focused = false;
ContainerListViewItem item = items[iIndex];
if (items[iIndex].Selected) // Already selected? De-select.
{
items[iIndex].Focused = false;
items[iIndex].Selected = false;
int i = selectedItems[item];
selectedIndices.Remove(i);
selectedItems.Remove(item);
if (this.focusedItem == item) focusedItem = null;
MakeSelectedVisible();
OnSelectedIndexChanged(new EventArgs());
}
else
{
item.Focused = true;
item.Selected = true;
selectedIndices.Add(iIndex);
selectedItems.Add(item);
this.focusedItem = item;
MakeSelectedVisible();
OnSelectedIndexChanged(new EventArgs());
}
Invalidate();
}
private void MoveToIndex(int iIndex)
{
if ((iIndex < -1) | (iIndex >= this.items.Count)) return;
if (iIndex == focusedIndex) return; /// Might occur on End on first item or
/// on Home on the first item or
/// if the user clicks on the current node
UnselectAll();
this.selectedItems.Clear();
this.selectedIndices.Clear();
if (focusedItem != null)
{
focusedItem.Selected = false;
focusedItem.Focused = false;
}
focusedIndex = iIndex;
if ((this.multiSelectMode == MultiSelectMode.Single) | (firstSelected == -1))
{
firstSelected = focusedIndex;
items[focusedIndex].Focused = true;
focusedItem = items[focusedIndex];
}
ShowSelectedItems();
MakeSelectedVisible();
OnSelectedIndexChanged(new EventArgs());
Invalidate(this.ClientRectangle);
}
