存储过程导致错误

Question

I declared 2 parameters for my stored procedure like this:

ALTER procedure [dbo].[paging_select]
    @startrowindex int,
    @maximumrows int
as
begin
    select username,firstname,lastname from crudtable ;
end

Simply passing the value as following but when executing it, it is causing an error:

SqlConnection con = new SqlConnection(getconnectionstring());
con.Open();

DataTable dt = new DataTable();
SqlCommand cmd = new SqlCommand();
SqlDataAdapter sda = new SqlDataAdapter("paging_select", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@startrowindex", 1);
cmd.Parameters.AddWithValue("@maximumrows", 3);
//  cmd.Parameters.AddWithValue("@totalrows", 1);

cmd.Connection = con;
sda.Fill(dt);  
sda.Dispose();
gridview.DataSource = dt;
gridview.DataBind();
con.Close();

Error was:

Procedure or function 'paging_select' expects parameter '@startrowindex', which was not supplied.

Help Please.

Answer 1

You have to pass command object to the SqlDatAdapter .

SqlCommand cmd = new SqlCommand();
cmd.CommandText="paging_select";
cmd.Connection=con;
SqlDataAdapter sda = new SqlDataAdapter(cmd);

PS: Always use using block to dispose objects automatically ( IDisposable ).

using(SqlConnection cn=new SqlConnection())
{
  //
}