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void DropDown_Layout(object sender, LayoutEventArgs e)
{
StripSeparators(((ToolStrip)sender).Items);
}
public void StripSeparators(ToolStripItemCollection tsItems)
{
// ItemCollections should neither begin with, end with or contain adjacent separators.
bool itemDisplayed = false;
ToolStripItem lastSeparator = null;
foreach (ToolStripItem tsItem in tsItems)
{
if (tsItem.Available)
{
if (tsItem is ToolStripSeparator)
{
// hide all separators
tsItem.Visible = false;
// only set in a separator that has a chance to be shown later
// if no items have been displayed, no chance
if (itemDisplayed) lastSeparator = tsItem;
}
else if (lastSeparator != null)
{
// show it when valid
lastSeparator.Visible = true;
}
else
{
itemDisplayed = true;
}
}
}
}
| Painting |
| When should I use Paint/OnPaint and when should I override the ToolStripRenderer? |
| Do I need to worry about double buffering? |
| Parenting |
| Partial Trust |
| Usage |