private void reverse_btn_Click(object sender, EventArgs e)
{
ListBox lb = GetChildeControl <ListBox>(tc_Person.SelectedTab);
ListBox.ObjectCollection items = lb.Items;
lb.BeginUpdate();
for (int i = 0, j = items.Count - 1; i < j; i++, j--)
{
object tempI = items[i];
object tempJ = items[j];
items.RemoveAt(j);
items.RemoveAt(i);
items.Insert(i, tempJ);
items.Insert(j, tempI);
}
lb.EndUpdate();
}
AddItem <TItem, TContainedValue>
(
TItem item
)
where TItem : FormattableValue <TContainedValue>
where TContainedValue : IEquatable <TContainedValue>,
IComparable <TContainedValue>, IFormattable
{
AssertValid();
ListBox.ObjectCollection oItems = this.Items;
Int32 iItems = oItems.Count;
Int32 iInsertionIndex;
for (iInsertionIndex = 0; iInsertionIndex < iItems; iInsertionIndex++)
{
Debug.Assert(oItems[iInsertionIndex] is TItem);
TItem oFormattableValue = (TItem)oItems[iInsertionIndex];
Int32 iCompareTo = item.CompareTo(oFormattableValue);
if (iCompareTo == 0)
{
// The ListBox contains an item with the same contained value.
// Don't add another such item.
return;
}
if (iCompareTo < 0)
{
break;
}
}
this.ClearSelected();
oItems.Insert(iInsertionIndex, item);
this.SelectedIndex = iInsertionIndex;
}