public void RemoveLineAt(int index)
{
if (_items == null || index < 0 || index >= _items.Length)
{
return;
}
if (_items.Length == 1)
{
_items = null;
}
else
{
var tmp = new ListviewItem[_items.Length - 1];
int c = 0;
for (int i = 0; i < _items.Length; i++)
{
if (i != index)
{
tmp[c++] = _items[i];
}
}
_items = tmp;
}
Invalidate();
}
public void RemoveLine(ListviewItem line)
{
if (_items == null)
{
return;
}
for (int i = 0; i < _items.Length; i++)
{
if (_items[i] == line)
{
RemoveLineAt(i);
return;
}
}
}
public void AddLine(ListviewItem line)
{
if (_items == null)
{
_items = new[] { line }
}
;
else
{
var tmp = new ListviewItem[_items.Length + 1];
Array.Copy(_items, tmp, _items.Length);
tmp[tmp.Length - 1] = line;
_items = tmp;
}
Invalidate();
}
public void AddLines(ListviewItem[] lines)
{
if (lines == null)
{
return;
}
if (_items == null)
{
_items = lines;
}
else
{
var tmp = new ListviewItem[_items.Length + lines.Length];
Array.Copy(_items, tmp, _items.Length);
Array.Copy(lines, 0, tmp, _items.Length, lines.Length);
_items = tmp;
}
Invalidate();
}