CRUD operation in MVC with out Entity framework - sql-server

Question

Hi I am beginner in MVC , I am trying to achieve CRUD operation in MVC using SQL with out Entity Framework or LINQ-SQL class. I done well with insert and getting the details of the selected table but when coming to Edit, details and delete I am confused how to perform so can some one help me out.
This is my code
Create a new Employee
public ActionResult Index(Test test)
{
try
{
if (ModelState.IsValid)
{
test.insert(test);
test.Name = "";
test.LastName = "";
}
}
catch (Exception)
{
}
return View(test);
}
Display all results
public ActionResult display()
{
Test tst = new Test();
return View(tst.getList());
}
This is my code in class file
public class Test
{
public int EmpID { get; set; }
[Required]
[DisplayName("Name")]
public string Name { get; set; }
[Required]
[DisplayName("LastName")]
public string LastName { get; set; }
string strConnection = ConfigurationManager.ConnectionStrings["SomeDataBase"].ConnectionString.ToString();
public void insert(Test test)
{
using (SqlConnection con = new SqlConnection(strConnection))
{
SqlCommand cmd = new SqlCommand("insert into Employee values('" + test.Name + "','" + test.LastName + "')", con);
con.Open();
cmd.ExecuteNonQuery();
}
}
public List<Test> getList()
{
List<Test> _lstPoducts = new List<Test>();
SqlConnection con = new SqlConnection(strConnection);
SqlCommand cmd = new SqlCommand("select * from Employee", con);
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
Test _Products = new Test();
_Products.EmpID = Convert.ToInt16(dr["EmpID"].ToString());
_Products.Name = dr["FirstName"].ToString();
_Products.LastName = dr["LastName"].ToString();
_lstPoducts.Add(_Products);
}
return _lstPoducts;
}
public List<Test> edit(int id)
{
List<Test> _lstPoducts = new List<Test>();
SqlConnection con = new SqlConnection(strConnection);
SqlCommand cmd = new SqlCommand("select * from Employee where EmpID='" + id + "'", con);
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
Test _Products = new Test();
_Products.EmpID = Convert.ToInt16(dr["EmpID"].ToString());
_Products.Name = dr["FirstName"].ToString();
_Products.LastName = dr["LastName"].ToString();
_lstPoducts.Add(_Products);
}
return _lstPoducts;
}
}
Can some one help me how to do the remaining operations like Details, Edit update and Delete.

Answer 1

for Details you can use
public Test details(int id)
{
Test _products = new Test();
SqlConnection con = new SqlConnection(strConnection);
SqlCommand cmd = new SqlCommand("select * from Employee where EmpID='" + id + "'", con);
con.Open();
try{
SqlDataReader dr = cmd.ExecuteReader();
_products.EmpID = Convert.ToInt16(dr["EmpID"].ToString());
_products.Name = dr["FirstName"].ToString();
_products.LastName = dr["LastName"].ToString();
}
catch(exception ex)
{
/* Do Some Stuff */
}
return _products;
}
And from your Controller
public ActionResult Details(int id)
{
Test tst = new Test();
return tst.Details(id);
}
for Edit you can use
public Bool Edit(test tst)
{
SqlConnection con = new SqlConnection(strConnection);
SqlCommand cmd = new SqlCommand("UPDATE TABLE Employee SET FirstName='"+tst.Name+"',Lastname='"+tst.LastName+"' where EmpID='" + tst.EmpId + "'", con);
con.Open();
try{
SqlDataReader dr = cmd.ExecuteReader();
return true;
}
catch(exception ex)
{
/* Do Some Stuff */
}
}
And from your Controller
public ActionResult Edit(test tsts)
{
Test tst = new Test();
return tst.Edit(tsts);
}
and proceed similarly for the rest of the cases