Base Class to handle basic ADO Steps

Question

How to creat a base class or utility that handles the basics of creating a connection, command, parameters, etc. so that I don’t have that code in each method or class reduces chances for errors and simplifies updates?

 

Example: I have many Methods and I'm sure there'z a way to create a base class by atleast creating a Constructor or creating and inheriting base class

 

//First Method
public void InsertToDoList(ToDoListProp ToDoListProp)
        {
            SqlConnection objConn = new SqlConnection();
            SqlCommand objCmd = new SqlCommand();
            SqlDataAdapter objDa = new SqlDataAdapter();
            DataSet objDs = new DataSet();


            objConn.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
            objCmd = new SqlCommand();
            objCmd.CommandText = "sp_WebToDoListSet";
            objCmd.CommandType = CommandType.StoredProcedure;
            objCmd.Connection = objConn;
}

//Second Method
  public DataSet GetToDoList(int EmployeeId)
        {
            List<ProjectProp> ProjectList;
            ProjectList = new List<ProjectProp>();


            SqlConnection objConn = new SqlConnection();
            SqlCommand objCmd = new SqlCommand();
            SqlDataAdapter objDa = new SqlDataAdapter();
            DataSet objDs = new DataSet();

            // EmpId = int.Parse(System.Web.HttpContext.Current.Session["EmployeeID"].ToString());

            objConn.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
            objCmd = new SqlCommand();
            objCmd.CommandText = "sp_GetToDoList";
            objCmd.CommandType = CommandType.StoredProcedure;
            objCmd.Connection = objConn;
}

//Another Method
  public void DeleteToDoList(int ToDoListId)
        {
            SqlConnection objConn = new SqlConnection();
            SqlCommand objCmd = new SqlCommand();
            SqlDataAdapter objDa = new SqlDataAdapter();
            DataSet objDs = new DataSet();

            objConn.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
            objCmd = new SqlCommand();
            objCmd.CommandText = "sp_DeleteToDoList";
            objCmd.CommandType = CommandType.StoredProcedure;
            objCmd.Connection = objConn;
}

 Any Help will be much appreciated!

 

Thanks