c# - Processing a ManagementObjectCollection using Parallel.ForEach(...) -

i'm using following code process items in managementobjectcollection in parallel:

using (managementobjectcollection results = this._searcher.get()) {     // type arguments method parallel.foreach<tsource>(...) cannot inferred usage     parallel.foreach(results, (mo, loopstate) =>     {         // process mo     }); } 

if specify type, complains this

using (managementobjectcollection results = this._searcher.get()) {     // cannot convert managementobjectcollection [..].ienumereable<managementobject>     parallel.foreach<managementobject>(results, (mo, loopstate) =>     {         // process mo     }); } 

how can make work properly? , why second code block not work (afaics, managementobjectcollection implements ienumerable why complaining)?

it implements non-generic ienumerable interface, hence making ienumerable<object>, not ienumerable<managementobject>.

i'd suggest casting using cast<t> cast each element iterate:

parallel.foreach(results.cast<managementobject>(),                 (mo, loopstate) => {     // process mo }); 

if reason need typed list, can cast before:

var managementobjects = results.cast<managementobject>().tolist(); parallel.foreach(managementobjects, (mo, loopstate) => {     // process mo });