How Do I Use Ado.Net Objects In Clas Library C#

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I am new to class library.I am trying to crate data access layer for my -tier website but not able to use sqlcommand or any other ADO.net object.
My code is like below:

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Collections;
Using System.Configuration;
namespace TEST.DAL
{
    public class AdminDAL
    {
       public static SqlConnection conn=new SqlConnection(ConfigurationManager"dbCon").ConnectionString));
	SqlCommand cmd=new SqlCommand("sp_insert",conn);

...
...
}
}

Now i can not use this cmd object to declare parameters or any attributes.The intellisense for cmd also not coming even after decalring sqlcommand as static i could not be able to use it.Please help me .

Posted 30-Apr-15 7:09am

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Karthik_Mahalingam · Answer 1 · 2015-04-30T08:18:00

corrected code:

C#

public static SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["yourconnectionstringname"].ConnectionString);
        SqlCommand cmd = new SqlCommand("sp_insert", conn);

note: dont create objects unnecessarily outside the methods.

Access the cmd object inside a method/Function, you could able to see the intellisense now

SqlCommand object should be used inside the methods unless it is common to the entire module.

Suvendu Shekhar Giri · Answer 2 · 2015-04-30T08:18:00

First of all, wrap your logic inside a method. Because that's whart is needed to access the functionality in other classes.
Example-

C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Collections;
Using System.Configuration;
namespace TEST.DAL
{
    public class AdminDAL
    {
       public static SqlConnection conn=new SqlConnection(ConfigurationManager"dbCon").ConnectionString));
public int ExecuteSPNonQuery()
{
	SqlCommand cmd=new SqlCommand("sp_insert",conn);
.       //rest of the logic here

Now, you should be able to access this method with the instance of the class.

Hope, it helps :)

How Do I Use Ado.Net Objects In Clas Library C#

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