Question

I have a DataTable with the following structure

ATM Fault
---------    
A01 34256
A02 56346
A03 98946

How can I store it in one string variable by using pipe delimiter as

string temp="A01|34256,A02|56346,A03|98946";

I was Converting My Linq To DataTable.But i it seems that i can do it in LINQ itself

var diff = dtOpenEvent.AsEnumerable().Except(dtOutputTemp.AsEnumerable(), DataRowComparer.Default);
DataTable di = diff.CopyToDataTable();//This is the Datatable which i want to Convert

How Can i achieve same by modifying only var diff statement so that there is no need to convert it in DataTable

Answer 1

You can first concat the ATM and Fault pairs with a pipe and then join them with comma:

IEnumerable<string> pairs = table
            .AsEnumerable()
            .Select(r => string.Format("{0}|{1}"
                 , r.Field<string>("ATM")
                 , r.Field<string>("Fault")));
string result = string.Join(",", pairs);