how to convert linq query to datatable in visual studio 2008

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Hi!
I am new in linq so want to know that how to get linq query data into datatable. I am using visual studio 2008. I have tried some solution but can not access CopyToDatable() into code. I have to perform edit in gridview using linq in rows itself on editindexing. I have to edit dropdown which is city field.

Posted 9-Sep-12 23:23pm

ravi sharma11

Updated 10-Sep-12 0:11am

_Amy

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SruthiR 10-Sep-12 5:29am

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_Amy · Answer 1 · 2012-09-09T23:46:00

Your select statement is returning a sequence of strings (IEnumerable or IQueryable), not a sequence of DataRows. CopyToDataTable() is only available on IEnumerable<t></t> where T is or derives from DataRow.
So, instead of select new {...} use select obj. Try this:

C#

var query = from obj in dt.AsEnumerable() where obj.Field<string>("somefield") == "test"
            select obj;
if(query.Count() > 0)
{
    DataTable dt = query.CopyToDataTable();
}

--Amit

Prasad_Kulkarni · Answer 2 · 2012-09-10T00:28:00

Solution 3

Refer:
Creating a DataTable From a Query (LINQ to DataSet)[^]
Best Practice: Convert LINQ Query result to a DataTable[^]
Convert Linq Query Result To DataTable[^]
Linq Query to DataTable[^]

..and more similar threads here[^]

Posted 10-Sep-12 0:28am

Prasad_Kulkarni

Unareshraju · Answer 3 · 2012-09-09T23:42:00

hi,
if u want datable in linq for that you can use Dataset in linq by choosing

select your project --->click on newitem -->select New Item --->Select DataTemplate ---->Select DataSet --->Click on ok.
Now dataset comes into your template.
then connect to your database

then convert from data set to datatable using below syntax :

DataSet ds = new DataSet();
DataTable dT = ds.Tables["TableName"];

how to convert linq query to datatable in visual studio 2008

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