Comments on: Convert List/IEnumerable to DataTable/DataView

By: Saif

Saif — Tue, 27 Sep 2011 11:58:40 +0000

This is not working when I join two table with all columns selected.

var productsQuery = (from p in db.Products
join c in db.Categories
on p.Category_Id equals c.Category_Id
where p.Vendor_Code == VendorCode
select new { p,c });

DataTable dt = LinqToDataTable.ToDataTable(productsQuery.ToList());

Please suggest what to do?

By: Chinh Do

Chinh Do — Thu, 07 Apr 2011 13:32:41 +0000

Glad to hear that.

By: Daniel

Daniel — Tue, 15 Mar 2011 22:40:08 +0000

Dude!!! you are lifesaver.
I’ve been trying to get this #@#$ thing to work for more than 5 hours.
Thanks a lot!

By: Mark J

Mark J — Fri, 04 Mar 2011 09:24:31 +0000

Very nice code – came in handy at just the right time!

By: Chinh Do

Chinh Do — Tue, 08 Feb 2011 21:01:26 +0000

Thanks for the link Allen. Will check it out. Chinh

By: Allen

Allen — Tue, 08 Feb 2011 20:36:30 +0000

Pretty nice! If you want to compare notes to Microsoft’s version of the same thing for use as an extension method, take a look to the following MSDN link:

http://msdn.microsoft.com/en-us/library/bb669096(v=vs.90).aspx#4

By: Chinh Do

Chinh Do — Fri, 25 Jun 2010 02:39:42 +0000

Hi Venkata: Appreciate your note. Glad this was helpful.

By: Venkata Koppaka

Venkata Koppaka — Thu, 24 Jun 2010 14:22:10 +0000

Very Useful dealing with custom business objects

By: Chinh Do

Chinh Do — Fri, 22 Jan 2010 12:50:16 +0000

Hi Marko:

I’ve fixed the code in the article to support nullable types. As the error message suggests, DataSets do not support nullable types. So the fix I put in is to use the non-nullable counterpart when I encounter nullable types.

Chinh

By: Marko

Marko — Fri, 22 Jan 2010 12:36:34 +0000

I need this code badly but when I use it in my code I get the following error:

DataSet does not support System.Nullable

and it is generated on the following line:

table.Columns.Add(property.Name, property.PropertyType);

My code is identical to yours and I use your method in my BLL method such as:

[DataObjectMethod(DataObjectMethodType.Select, true)]
public DataTable GetList(string sortExpression, int maximumRows, int startRowIndex)
{
var records = _dc.Products.OrderBy(p => p.ProductName).ToList();
return ToDataTable(records);
}

If you have any suggestions please help…