/// <summary>
/// This function is used to update a particular entry in the database
/// </summary>
public void update(Student studentobj)
{
var context = new TestDBEntities1();
context.Entry(studentobj).State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
/// <summary>
/// This function is used to delete a row from the database
/// </summary>
/// <param name="eid"> The id of the Employee who's data we wish to delete from the database</param>
public void delete(Student modelobj)
{
var context = new TestDBEntities1();
context.Entry(modelobj).State = System.Data.Entity.EntityState.Deleted;
context.SaveChanges();
}
/// <summary>
/// This function is uesd to add the values from the entries to the database
/// </summary>
public void add(Student studentobj)
{
var context = new TestDBEntities1();
context.Students.Add(studentobj);
context.SaveChanges();
}
/// <summary>
/// This function is used to update a particular entry in the database
/// </summary>
public void update(Employee modelobj)
{
var context = new TestDBEntities1();
context.Entry(modelobj).State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
/// <summary>
/// This function is uesd to add the values from the entries to the database
/// </summary>
public void add(Employee dtoobj)
{
var v = new TestDBEntities1();
v.Employees.Add(dtoobj);
v.SaveChanges();
}
/// <summary>
/// update method to update the records of the student datatable
/// </summary>
public void UpdateStudentVal(Student emp)
{
using (TestDBEntities1 context = new TestDBEntities1())
{
context.Entry(emp).State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
}
/// <summary>
/// method to delete data from employee table
/// </summary>
/// <param name="em"></param>
public void DeleteEmployee(Employee em)
{
using (var context = new TestDBEntities1())
{
var bay = (from d in context.Employees where d.empid == em.empid select d).Single();
context.Employees.Remove(bay);
context.SaveChanges();
}
}
/// <summary>
/// delete method to delete data from the student datatable
/// </summary>
/// <param name="user"></param>
public void DeleteStudentVal(Student user)
{
using (var context = new TestDBEntities1())
{
var bay = (from d in context.Students where d.StudentId == user.StudentId select d).Single();
context.Students.Remove(bay);
context.SaveChanges();
}
}
/// <summary>
/// method to add data into the database
/// </summary>
/// <param name="em"></param>
public void AddEmployee(Employee em)
{
//create DBContext object
using (var dbCtx = new TestDBEntities1())
{
//Add Student object into Students DBset
dbCtx.Employees.Add(em);
// call SaveChanges method to save student into database
dbCtx.SaveChanges();
}
}
/// <summary>
/// method to add data to student table
/// </summary>
/// <param name="cs"></param>
public void AddStudentVal(Student cs)
{
using (var dbCtx = new TestDBEntities1())
{
//Add Student object into Students DBset
dbCtx.Students.Add(cs);
//id = ob.StudentId;
// call SaveChanges method to save student into database
dbCtx.SaveChanges();
}
}
/// <summary>
/// method to update employee
/// </summary>
/// <param name="emp"></param>
public void UpdateEmployee(Employee emp)
{
using (TestDBEntities1 context = new TestDBEntities1())
{
var employee = (from d in context.Employees where d.empid == emp.empid select d).Single();
employee.firstname = emp.firstname;
employee.lastname = emp.lastname;
employee.mobileno = emp.mobileno;
employee.gender = emp.gender;
employee.state = emp.state;
employee.city = emp.city;
context.SaveChanges();
}
}
/// <summary>
/// // method to display data into the datagrid
/// </summary>
/// <returns></returns>
public DataTable GetDataVal()
{
var entities = new TestDBEntities1();
DataTable table = AddCol();
var dt = (from d in entities.Employees select d);
foreach (var obj in dt)
{
DataRow dr = table.NewRow();
dr["EmpId"] = obj.empid;
dr["FirstName"] = obj.firstname;
dr["LastName"] = obj.lastname;
dr["MobileNo"] = obj.mobileno;
dr["Gender"] = obj.gender;
dr["State"] = obj.state;
dr["City"] = obj.city;
table.Rows.Add(dr);
}
return(table);
}
/// <summary>
/// getdata method for displaying the data from database
/// </summary>
/// <returns></returns>
public DataTable GetDataVal()
{
var entities = new TestDBEntities1();
DataTable table = AddCol();
var dt = (from d in entities.Students select d);
foreach (var obj in dt)
{
DataRow dr = table.NewRow();
dr["StudentId"] = obj.StudentId;
dr["FirstName"] = obj.FirstName;
dr["LastName"] = obj.LastName;
dr["MobileNo"] = obj.MobileNo;
dr["Gender"] = obj.Gender;
dr["State"] = obj.State;
dr["City"] = obj.City;
table.Rows.Add(dr);
}
return(table);
}
/// <summary>
/// This function returns a datatable that contains the databse
/// </summary>
public DataTable get()
{
var entityobj = new TestDBEntities1();
DataTable t = new DataTable();
t = addcolm();
var row = (from d in entityobj.Employees select d);
foreach (var rowobj in row)
{
DataRow datarow = t.NewRow();
datarow["Employeeid"] = rowobj.Employeeid;
datarow["Firstname"] = rowobj.Firstname;
datarow["Lastname"] = rowobj.Lastname;
datarow["Phonenumber"] = rowobj.Phonenumber;
datarow["Gender"] = rowobj.Gender;
datarow["City"] = rowobj.City;
datarow["State"] = rowobj.State;
t.Rows.Add(datarow);
}
return(t);
}
