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c#linqdatacontextsystem.data

DataContext.ExecuteQuery parameter issues

I get the following error:

Procedure or function 'procTestReport' expects parameter '@StartDate', which was not supplied.

When I execute the following code:

String[] args = new String[2]{StartDate.ToShortDateString(), EndDate.ToShortDateString()};

lst = dbContext.ExecuteQuery<Summary>("procTestReport", args).ToList<Summary>();

Are the arguments I pass supposed to be presented in a different way? From the following link it seems like I'm using it correctly: https://msdn.microsoft.com/en-us/library/bb361109.aspx

Solution

  • If you need to execute a stored procedure you can use instead:

    SqlConnection con = new SqlConnection("your ConnectionString");

SqlCommand cmd = new SqlCommand("your SP_Name", con);
cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.Add(new SqlParameter("param name", "param value"));
cmd.Parameters.Add(new SqlParameter("param2 name", "param2 value"));
.
.
.
con.Open();
SqlDataReader reader = cmd.ExecuteReader();
con.Close();

SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
adapter.Fill(dt);

return dt;

    dt contains the return of the stored procedure.

    If is necessary to use LinQ, try this

    dataContext.ExecuteCommand("EXEC usp_SomeProcedure {0}, {1}, {2}", param1, param2, param3);