Question

I want a stored procedure to return multiple rows and i am using entity data model. Also i want to retrieve the value of columns of all the rows given as output.

I had done this thing using SqlDataReader, SqlCommand and SqlConnection.

SqlCommand cmd = new SqlCommand("select leave_details,LID,from_date,to_date from LeaveTable where E_ID=1 and from_date<@toDate and to_date>@fromDate", con);
cmd.Parameters.Add("@toDate", System.Data.SqlDbType.Date);
cmd.Parameters["@toDate"].Value = to_date;
cmd.Parameters.Add("@fromDate", System.Data.SqlDbType.Date);
cmd.Parameters["@fromDate"].Value = from_date;
con.Open();

obj = cmd.ExecuteReader();

And i can traverse through rows using obj.read().

And i can read value of particular column using

leave_id = (int)obj.GetValue(1);

How can i get the same thing done by a stored procedure and creating a Function Import using Entity Data Model??

Answer 1

There are several steps to do this I believe this is by far the best tutorial to achieve this that can be found online

http://msdn.microsoft.com/en-us/data/gg699321.aspx

you basically have to create a new complex type since you are selecting from several tables I believe this tutorial has an example on how to do this. basically you will return a set of values in a list and then you can read each value/object from alist