void header_Delete(object sender, RoutedEventArgs e)
{
//-->删除当前点击的TabItem
TabItemHeader btn = sender as TabItemHeader;
if (null == btn || null == btn.Tag)
{
return;
}
TabItem ti = btn.Tag as TabItem;
PageWorkArea pwa = ti.Content as PageWorkArea;
pwa.ControlPosition -= pwa_ControlPosition;
pwa.ContentUpdate -= pwa_ContentUpdate;
pwa.Dispose();
pwa.ParentControl = null;
pwa = null;
btn.OnCloseTabItem -= header_Delete;
tcCollection.Items.Remove(ti);
ti.Content = null;
ti = null;
var cpwa = CurrentPageWorkArea;
if (null == cpwa)
{
//-->清空属性控件，和文本大刚。
if (null != OnClear)
{
OnClear(this, null);
}
return;
}
//-->更新当前的属性控件
//-->更新文本大刚
CurrentPageWorkArea.UpdatePropertyGridAndControlTree();
}