//Deletes a company from the DB provided its id
public DataSet deleteCompany(CompanyEN com, 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
SqlConnection c = new SqlConnection(s); //The connection is effectuated
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
SqlDataAdapter da = new SqlDataAdapter(); // ** Will be implemented soon ** //
da.Fill(virtdb, "company"); //It introduces the information returned from the select into this virtual DB
DataTable t = new DataTable(); //Creates a tble
t = virtdb.Tables["company"]; //Fils it with the select
t.Rows[i].Delete(); //delete row
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "company"); //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 company");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
public void deleteCompany(CompanyEN co)
{
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Delete From Company Where id = " + co.ID, c);
com.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Delete company");
}
finally
{
c.Close();
}
}
public void updateCompany(CompanyEN co)
{
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Update Company Set Name = '" + co.Name + "', Type = '" + co.Type + "', Phone ='" +
co.Phone + "', Email = '" + co.Email + "', County = '" + co.Country + "', Website = '" + co.Website + "', Description = '" +
co.Description + "' Where ID = " + co.ID, c);
com.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Update company");
}
finally
{
c.Close();
}
}
public void addCompany(CompanyEN co)
{
string s = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ToString();
SqlConnection c = new SqlConnection(s);
try
{
c.Open();
SqlCommand com = new SqlCommand("Insert Into Company (ID,Name,Type,Phone,Email,Country,Website,Description) VALUES ('" + co.ID + "','" + co.Name + "','" + co.Type + "','" +
co.Phone + "','" + co.Email + "','" + co.Country + "','" + co.Website + "','" + co.Description + "')", c);
com.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.ToString();
Console.WriteLine("ERROR: Add company");
}
finally
{
c.Close();
}
}
//Adds a new company to the DB
public void addCompany(CompanyEN com)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
SqlConnection c = new SqlConnection(s); //The connection is effectuated
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
SqlDataAdapter da = new SqlDataAdapter(); // ** Will be implemented soon ** //
da.Fill(virtdb, "company"); //It introduces the information returned from the select into this virtual DB
DataTable dt = new DataTable(); //Creates a table
dt = virtdb.Tables["company"]; //Fills it with the select
DataRow newRow = dt.NewRow(); //insert new values in a new row
newRow[0] = com.Id;
newRow[1] = com.name;
newRow[2] = com.type;
newRow[3] = com.phone;
newRow[4] = com.email;
newRow[5] = com.country;
newRow[5] = com.website;
newRow[5] = com.description;
dt.Rows.Add(newRow);
SqlCommandBuilder cbuilder = new SqlCommandBuilder(da); //Elaborates the SQL command needed to make the changes
da.Update(virtdb, "company"); //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 company");
}
finally
{
c.Close(); //Closes the connection to the DB
}
}
// Shows the information of all the companies in the DB
public DataSet showCompanies(CompanyEN b)
{
string s;
s = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString(); //String where it's stored the instructions for the connecton for the DB
SqlConnection c = new SqlConnection(s); //The connection is effectuated
DataSet virtdb = new DataSet(); //Created the DataSet that is going to be returned with the information asked
try
{ //The select in SQL language that is processed in the DB which will return all the rows from the table "Flight"
SqlDataAdapter da = new SqlDataAdapter("select * from Company", c); //The select in SQL language that is processed in the DB which will return all the rows from the table
da.Fill(virtdb, "company"); //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 company");
}
finally
{
c.Close(); //Closes the connection to the DB
}
return(virtdb); //It returns the virtual DB with all the information asked inside
}
