Linq distinct count of a value in a datatable

   var countings  = (from row in ti.Table.AsEnumerable()

                            select row["blah"].ToString()).Distinct();

            if(countings.Count<string>() > 1)

            {

Linq top N from datatable to new datatable

var dtTrec = from item in dt.AsEnumerable()

                                     select item;

                        var topN = dtTrec.Take(20);

                        DataTable dt1 = topN.ToArray().CopyToDataTable<DataRow>();

Location of installutil

may be here under the current version

C:\Windows\Microsoft.NET\Framework\

deleting windows services

from command line

sc delete blah

reduce size xap issue

I made a dll reference to local copy = false and the published xap file still had the dll

I had to clean the project for this to work

interesting issue with 3rd party components

if they are not properly titlecased - this will mess up the designer class  as it will copy the way its spelled in aspx page

going up paths ..

where the paths lead nowhere  (e.g. /../../../../  at http:\\blah.com/herby )will still resolve to the last place it go up to.
this can be a source of subtle bugs.