multiple groupby in linq C# by List of properties

Asked Jan 25 '15 at 10:20

Active Jan 25 '15 at 10:20

Viewed 266 times

I have List GroupProperyKeys and in my code I'm getting the Properties info

 List<PropertyInfo> propertiesKeys = new List<PropertyInfo>();
 foreach (string key in this.GroupProperyKeys)
 {
    PropertyInfo p = typeof(T).GetProperty(key);
    if (p != null)
      propertiesKeys.Add(p);
 }

now I want to group my list by the given properties. In case I have one property to group by it's look like this

PropertyInfo keyProperty = typeof(T).GetProperty(this.GroupProperyKey);
if (keyProperty != null)
{
   var group = m_list.GroupBy(x => keyProperty.GetValue(x));
}

Is it possible to group by list of properties?

Thank you in advanced

asked Jan 25 '15 at 10:20

user3132295

Ok but I want it to be something like foreach p in properties { groupby} – user3132295 Jan 25 '15 at 10:32
I can't see the option .ThenBy – user3132295 Jan 25 '15 at 10:36
Can you please write me code sample of what you mean. Because I don't understand how do you save it in var group – user3132295 Jan 25 '15 at 10:37
ThenBy is for order not for group – user3132295 Jan 25 '15 at 10:48
http://stackoverflow.com/questions/6935264/group-by-with-multiple-columns-using-lambda – Khanh TO Jan 25 '15 at 10:53
I know how to group by multiple columns, the question is how to group by dynamically with properties list? – user3132295 Jan 25 '15 at 11:08
Ok I found the answer [here][1] Thank you all [1]: http://stackoverflow.com/questions/21143179/build-groupby-expression-tree-with-multiple-fields – user3132295 Jan 25 '15 at 12:23

multiple groupby in linq C# by List of properties

0 Answers0