private void Repopulate()
{
if (_inRepopulate)
{
return;
}
try
{
_inRepopulate = true;
if (!Equals(SelectedGroup, toolStripComboGroup.SelectedItem))
{
listView1.Items.Clear();
}
toolStripComboGroup.Items.Clear();
imageList1.Images.Clear();
var newItems = new List <ListViewItem>();
var newGroups = new List <ListViewGroup>();
if (null != ViewContext)
{
imageList1.Images.AddRange(ViewContext.GetImageList());
toolStripComboGroup.Items.AddRange(ViewContext.ViewGroups.ToArray());
IEnumerable <ViewGroup> groups;
if (null != SelectedGroup)
{
groups = new[] { SelectedGroup };
listView1.View = View.List;
}
else
{
groups = ViewContext.ViewGroups;
listView1.View = View.SmallIcon;
}
foreach (var group in groups)
{
var listViewGroup = new ListViewGroup(group.Id.Name, group.Label)
{
Tag = group
};
newGroups.Add(listViewGroup);
foreach (var viewSpec in ViewContext.GetViewSpecList(group.Id).ViewSpecs)
{
bool validRowSource = null != ViewContext.GetViewInfo(new ViewName(group.Id, viewSpec.Name));
if (FilterRowSources && !validRowSource)
{
continue;
}
var viewName = new ViewName(group.Id, viewSpec.Name);
var item = new ListViewItem(viewSpec.Name, ViewContext.GetImageIndex(viewSpec))
{
Name = viewName.ToString(),
Group = listViewGroup,
Tag = viewName,
Checked = _checkedItems.Contains(viewName),
};
if (!validRowSource && GrayDisabledRowSources)
{
item.ForeColor = SystemColors.GrayText;
}
newItems.Add(item);
}
}
toolStripComboGroup.SelectedItem = SelectedGroup;
}
ReplaceItems(listView1, newGroups, newItems);
}
finally
{
_inRepopulate = false;
}
}
