private void RemoveNode(object sender, RemoveNodeEventArgs e)
{
if (string.IsNullOrWhiteSpace(e.IdToRemove))
{
return;
}
IModelType nodeToRemove = GetModelTypeById(e.IdToRemove, _bookmarksTree);
bool isNodeToRemoveAFolder = nodeToRemove.GetType() == typeof(Folder);
IModelType parentNode = GetModelTypeById(nodeToRemove.ParentId, _bookmarksTree);
bool isParentAFolder = parentNode == null ? true : parentNode.GetType() == typeof(Folder);
if (!isParentAFolder)
{
return;
}
if (isNodeToRemoveAFolder)
{
bool isFolderEmpty = ((Folder)nodeToRemove).Children.Count() == 0;
if (!isFolderEmpty)
{
var diagResult = _dialogService.ShowMessageBox(
"Remove folder?", "Deleting this folder will delete all children. Continue?",
System.Windows.Forms.MessageBoxButtons.OKCancel, System.Windows.Forms.MessageBoxIcon.Warning
);
if (diagResult != System.Windows.Forms.DialogResult.OK)
{
return;
}
}
}
else
{
var diagResult = _dialogService.ShowMessageBox(
"Delete node?", "There is no going back. Continue?",
System.Windows.Forms.MessageBoxButtons.OKCancel, System.Windows.Forms.MessageBoxIcon.Warning);
if (diagResult != System.Windows.Forms.DialogResult.OK)
{
return;
}
}
if (parentNode == null)
{
_bookmarksTree.Bookmarks.Remove(nodeToRemove);
}
else
{
Folder parentFolder = (Folder)GetModelTypeById(nodeToRemove.ParentId, _bookmarksTree);
parentFolder.Children.Remove(nodeToRemove);
}
_view.RemoveNodeFromTree(e.IdToRemove);
_bookmarksTree.WriteToFile("bookmarks.xml");
}