Unable to bind LINQ to gridview

Question

I just using a simple LINQ query having group by clause and trying to bind its result set to GridView. My LINQ query looks like

var expData = from c in WebDB.Tra         


        

Answer 1

EDIT This ignores the "" in your linq statement

Look at the attribute on your asp.net GridView(aspx code): DataKeyField="" is pointing to a column name that does not exist in your linq query

<asp:GridView AutoGenerateColumns="true" DataKeyField="Key"/>

Answer 2

I had your problem either , I wrote like this . I hope this work for you :

var expData = from c in WebDB.TransTable
              group c by c.enterdate into g
              select new {EnterDate = g.Key};

Answer 3

expData is a string as you've put the LINQ query inside quotation marks.

var expData = "from c in WebDB.TransTable
            group c by c.enterdate into g
              select g;"

System.String does not have a property called Key, hence the error.

If you remove the quotation marks it should all work fine.