public DataSet deleteHotel(HotelEN h, int i) // It will delete the index passed in the view
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
SqlConnection c = new SqlConnection(s); //The connection is effectuated
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Hotel"
SqlDataAdapter da = new SqlDataAdapter("select * from Hotel", c);
da.Fill(virtdb, "hotel"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a new table
t = virtdb.Tables["hotel"]; //Fills it with the information gathered by the select
t.Rows[i].Delete(); //Removes the row
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "hotel"); //Updates the DB with the new information
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: Delete hotel");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information needed inside
}
public DataSet updateHotel(HotelEN h, int i)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
SqlConnection c = new SqlConnection(s); //The connection is effectuated
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Hotel"
SqlDataAdapter da = new SqlDataAdapter("select * from Hotel", c);
da.Fill(virtdb, "hotel"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a new table
t = virtdb.Tables["hotel"]; //Fills it with the information gathered by the select
// t.Rows[i]["Id"] = h.Id;
t.Rows[i]["Id"] = h.Id;
t.Rows[i]["Name"] = h.Name;
t.Rows[i]["City"] = h.City;
t.Rows[i]["Phone"] = h.Phone;
t.Rows[i]["Adress"] = h.Address;
t.Rows[i]["Email"] = h.Email; //Updates the new information
t.Rows[i]["Stars"] = h.Stars;
t.Rows[i]["Bedrooms"] = h.Bedrooms;
t.Rows[i]["Price"] = h.Price;
t.Rows[i]["company"] = h.Company;
t.Rows[i]["extras"] = h.Extras;
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "hotel"); //Updates the DB with the new information added
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: Delete hotel");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information needed inside
}
public DataSet addHotel(HotelEN h)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
SqlConnection c = new SqlConnection(s); //The connection is effectuated
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Hotel"
SqlDataAdapter da = new SqlDataAdapter("select * from Hotel", c);
da.Fill(virtdb, "hotel"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a new table
t = virtdb.Tables["hotel"]; //fills the DataTable with the information extrcted from the previous select
DataRow newRow = t.NewRow(); //Creates a new row
newRow[0] = h.Id;
newRow[1] = h.Name;
newRow[2] = h.City;
newRow[3] = h.Phone; //Introduces the information of the new hotel
newRow[4] = h.Address;
newRow[5] = h.Email;
newRow[6] = h.Stars;
newRow[7] = h.Bedrooms;
newRow[8] = h.Price;
newRow[9] = h.Company;
newRow[10] = h.Extras;
t.Rows.Add(newRow); //Adds the row to the table
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "hotel"); //Updates the DB with the new information added
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: Add hotel");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information needed inside
}
protected void sendInsert(object sender, EventArgs e) //insert a new product
{
HotelEN h = new HotelEN();
h.Id = int.Parse(idH.Text);
h.Name = nameH.Text;
h.City = cityH.Text;
h.Phone = int.Parse(phoneH.Text);
h.Address = addressH.Text;
h.Email = emailH.Text;
h.Stars = int.Parse(starsH.Text);
h.Bedrooms = bedroomsH.Text;
h.Price = int.Parse(priceH.Text);
h.Company = int.Parse(companyH.Text);
h.Extras = int.Parse(extrasH.Text);
h.Image = imageT.Text;
d = h.add_hotel();
GridView1.DataSource = d;
GridView1.DataBind();
}
//It provides with the information of all the hotels contained in the DB
public DataSet showHotels(HotelEN h)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
SqlConnection c = new SqlConnection(s); //The connection is effectuated
try
{
SqlDataAdapter da = new SqlDataAdapter("select * from Hotel", c); //The select in SQL language that is processed in the DB which will return all the rows from the table "Hotel"
da.Fill(virtdb, "hotel"); //It introduces the information returned from the select into this virtual DB
}
catch (Exception ex)
{
ex.ToString(); //In case of an error it is printed here
Console.WriteLine("ERROR: show hotel");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information needed inside
}
