public OLECMDF QueryCommandStatus(VSConstants.VSStd97CmdID commandId)
{
if (commandId != VSConstants.VSStd97CmdID.NextLocation &&
commandId != VSConstants.VSStd97CmdID.PreviousLocation)
{
return(OLECMDF.OLECMDF_INVISIBLE | OLECMDF.OLECMDF_DEFHIDEONCTXTMENU);
}
var treeView = FindName("Results") as TreeView;
if (treeView == null)
{
return(OLECMDF.OLECMDF_INVISIBLE | OLECMDF.OLECMDF_DEFHIDEONCTXTMENU);
}
var selectedValue = treeView.IsVisible ? treeView.SelectedValue as ResultModelBase : null;
if (selectedValue == null)
{
selectedValue = DataContext as ResultModelBase;
}
var nextValue = commandId == VSConstants.VSStd97CmdID.NextLocation
? ResultModelHelper.Next(selectedValue) : ResultModelHelper.Previous(selectedValue);
return(nextValue == null ? OLECMDF.OLECMDF_SUPPORTED : OLECMDF.OLECMDF_SUPPORTED | OLECMDF.OLECMDF_ENABLED);
}
public void ExecuteCommand(VSConstants.VSStd97CmdID commandId)
{
if (commandId != VSConstants.VSStd97CmdID.NextLocation &&
commandId != VSConstants.VSStd97CmdID.PreviousLocation)
{
return;
}
var treeView = FindName("Results") as TreeView;
if (treeView == null)
{
return;
}
var selectedItem = treeView.SelectedItem as ResultModelBase;
if (selectedItem == null)
{
selectedItem = DataContext as ResultModelBase;
}
var nextItem = commandId == VSConstants.VSStd97CmdID.NextLocation
? ResultModelHelper.Next(selectedItem) : ResultModelHelper.Previous(selectedItem);
TreeViewHelper.ExpandTreeViewItemModel(treeView, nextItem);
var treeViewItem = TreeViewHelper.TreeViewItemFromModel(treeView, nextItem);
if (treeViewItem != null)
{
treeViewItem.IsSelected = true;
treeViewItem.BringIntoView();
var scrollViewer = treeView.Template.FindName("_tv_scrollviewer_", treeView) as ScrollViewer;
if (scrollViewer != null)
{
scrollViewer.ScrollToLeftEnd();
}
ResultModelHelper.Edit(nextItem);
}
}