c# - Removing an object from IOrderedEnumerable -

i sorted dictionary this:

var sortedlistofnodes = _nodedictionary.values.orderby((n) => n.time); 

then selected element such:

var selectednode = sortedlistofnodes.first(n => n.time - currenttime > new timespan(1,0,0)); 

then did processing on node , @ end wanted remove node list, without destroying sorted order.

would below maintain order?

sortedlistofnodes = (iorderedenumerable<node>)sortedlistofnodes.where(node => node != selectednode); 

add call tolist after orderby. have list can manipulate (assuming don't insert items stay in order).

var sortedlistofnodes = _nodedictionary.values.orderby((n) => n.time).tolist(); var selectednode = sortedlistofnodes.first(n => n.time - currenttime > new timespan(1,0,0)); sortedlistofnodes.remove(selectednode); 

on side note example of casting result of where iorderedenumerable<node> fail @ runtime casting failure. where calling concrete type not implement interface.