protected override void OnPaint(PaintEventArgs e)
{
if (VirtualListSize == 0)
{
return;
}
int itemWidth = GetItemWidth();
int itemHeight = GetItemHeight();
int pagesize = (ClientSize.Height % itemHeight) == 0 ?
(ClientSize.Height / itemHeight) : (ClientSize.Height / itemHeight) + 1;
int startIndex = GetTopIndex();
int endIndex = Math.Min(startIndex + pagesize, VirtualListSize);
Rectangle bound = new Rectangle(0, 0, itemWidth, itemHeight);
for (int index = startIndex; index < endIndex; index++)
{
var re = new RetrieveCommandListItemEventArgs(index);
OnRetrieveCommandListItem(re);
re.Item.SetIndex(index);
re.Item.SetBounds(bound);
var de = new DrawCommandListItemEventArgs(e.Graphics, re.Item);
OnDrawItem(de);
bound.Y += itemHeight;
}
}
private void OnDrawItem(DrawCommandListItemEventArgs e)
{
DrawItem.Raise(this, e);
}
private void OnDrawItem(DrawCommandListItemEventArgs e)
{
DrawItem.Raise(this, e);
}
protected override void OnPaint(PaintEventArgs e)
{
if (VirtualListSize == 0) return;
int itemWidth = GetItemWidth();
int itemHeight = GetItemHeight();
int pagesize = (ClientSize.Height % itemHeight) == 0 ?
(ClientSize.Height / itemHeight) : (ClientSize.Height / itemHeight) + 1;
int startIndex = GetTopIndex();
int endIndex = Math.Min(startIndex+pagesize, VirtualListSize);
Rectangle bound = new Rectangle(0, 0, itemWidth, itemHeight);
for (int index = startIndex; index < endIndex; index++)
{
var re = new RetrieveCommandListItemEventArgs(index);
OnRetrieveCommandListItem(re);
re.Item.SetIndex(index);
re.Item.SetBounds(bound);
var de = new DrawCommandListItemEventArgs(e.Graphics,re.Item);
OnDrawItem(de);
bound.Y +=itemHeight;
}
}