//INSERT DATA INTO DB
public bool Insert(ContactClass c)
{
//cr default return type and setting its value type
bool isSucces = false;
//Connect to db
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//insert data
string sql = "INSERT INTO Abonati(Cod_Tipologie, Nume,Prenume,Tel,Email) VALUES (@Cod_Tipologie,@Nume,@Prenume,@Tel,@Email)";
//creating cmd using sql and conn
SqlCommand cmd = new SqlCommand(sql, conn);
//parameters to add data
cmd.Parameters.AddWithValue("@Cod_Tipologie", c.Cod_Tipologie);
cmd.Parameters.AddWithValue("@Nume", c.Nume);
cmd.Parameters.AddWithValue("@Prenume", c.Prenume);
cmd.Parameters.AddWithValue("@Tel", c.Tel);
cmd.Parameters.AddWithValue("@Email", c.Email);
//connection opens here
conn.Open();
int rows = cmd.ExecuteNonQuery();
//if query runs succesfully -- value of rows will be greater than 0
if (rows > 0)
{
isSucces = true;
}
else
{
isSucces = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSucces);
}
//Method to update data from app
public bool Update(ContactClass c)
{
//create default return type- default setting fdalse
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//sql to update db
string sql = "UPDATE Abonati SET Cod_Tipologie=@Cod_Tipologie, Nume=@Nume,Prenume=@Prenume, Tel=@Tel,Email=@Email WHERE IdAbonat=@IdAbonat";
SqlCommand cmd = new SqlCommand(sql, conn);
//parameters to add data
cmd.Parameters.AddWithValue("@Cod_Tipologie", c.Cod_Tipologie);
cmd.Parameters.AddWithValue("@Nume", c.Nume);
cmd.Parameters.AddWithValue("@Prenume", c.Prenume);
cmd.Parameters.AddWithValue("@Tel", c.Tel);
cmd.Parameters.AddWithValue("@Email", c.Email);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//method delete from db
public bool Delete(ContactClass c)
{
//create default return type- default setting fdalse
bool isSuccess = false;
//creeate sql connection
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//sql to update db
string sql = "DELETE FROM IdAbonat=@IdAbonat";
SqlCommand cmd = new SqlCommand(sql, conn);
//parameters to add data
cmd.Parameters.AddWithValue("@Cod_Tipologie", c.Cod_Tipologie);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
