how can i make this NOT a loop?
开发者_如何转开发 {
ManagementObjectSearcher Vquery = new ManagementObjectSearcher("SELECT * FROM Win32_VideoController");
ManagementObjectCollection Vcoll = Vquery.Get();
foreach (ManagementObject mo in Vcoll)
{
System.Diagnostics.Process.Start("http://www.google.com/search?hl=en&q=" + mo["name"].ToString());
}
Here's a very stupid code to avoid foreach:
if( Vcoll.Count > 0)
{
IEnumerator en = collection.GetEnumerator();
en.MoveNext();
System.Diagnostics.Process.Start("http://www.google.com/search?hl=en&q=" + en.Current["name"].ToString());
}
But, if the problem is opening multiple pages, I'd prefer a simple break in the foreach:
foreach (ManagementObject mo in Vcoll)
{
System.Diagnostics.Process.Start("http://www.google.com/search?hl=en&q=" + mo["name"].ToString());
break;
}
Here you are.
var procs = (from mo in (new ManagementObjectSearcher("SELECT * FROM Win32_VideoController")).Get().OfType<ManagementObject>()
select (System.Diagnostics.Process.Start("http://www.google.com/search?hl=en&q=" + mo["name"].ToString()))).ToList();
There are a few (fairly pointless) ways involving lists and methods like ForEach
- or possibly Select
, but you aren't solving a problem here. Just use the loop. It expresses perfectly what you are doing.
One hacky way (I don't recommmend this here):
Vcoll.Cast<ManagementObject>().Select(mo =>
System.Diagnostics.Process.Start("http://www.google.com/search?hl=en&q="
+ mo["name"].ToString())).ToArray();
not an improvement IMO.
A common one-liner is:
Vcoll.ForEach( mo -> System.Diagnostics.Process.Start("http://www.google.com/search?hl=en&q=" + mo["name"].ToString()));
Of course ForEach has its own loop inside.
If all you want to accomplish is not opening pages twice, then use "distinct":
var foundNames =
(from ManagementObject mo in new ManagementObjectSearcher("SELECT * FROM Win32_VideoController").Get()
let name = mo["Name"].ToString()
where !String.IsNullOrEmpty(name)
select name).Distinct();
foreach(var name in foundNames)
Process.Start("http://www.google.com/search?hl=en&q=" + name);
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