public Estudantes(SqlConnection cn, Form f)
{
this.cn = cn;
this.previous = f;
InitializeComponent();
this.nmec.GroupKeyGetter = delegate(object rowObject)
{
// When the same is returned by every object, all of them are put together in one group
return("Número mecanográfico");
};
this.nome.GroupKeyGetter = delegate(object rowObject)
{
return("Nome");
};
this.nomeEE.GroupKeyGetter = delegate(object rowObject)
{
return("Nome Enc Educ");
};
this.telemovelEE.GroupKeyGetter = delegate(object rowObject)
{
// Group phones by the first two digits (phone company indicator)
Estudante e = (Estudante)rowObject;
if (e.telemovelEE.ToString().Length > 2)
{
return(e.telemovelEE.ToString().Substring(0, 2));
}
return("Outros");
};
this.email_EE.GroupKeyGetter = delegate(object rowObject)
{
// Group emails by domain (text after @ symbol)
Estudante e = (Estudante)rowObject;
return(e.emailEE.Split('@')[1]);
};
this.listObjects.FullRowSelect = true; //Make selection select the full row (and not only a cell)
this.listObjects.SelectedIndex = 0; //Make the first row selected ad default
// Filtering
pesquisaAtributo.SelectedIndex = 0; // Set atribute combo box selected index to xero as default
this.listObjects.UseFiltering = true;
}
private void submitForm(Estudante e)
{
bool edit = (e != null);
// Get form data
int nmec = Int32.Parse(panelFormFieldNMec.Text);
String nome = panelFormFieldNome.Text;
String nomeEE = panelFormFieldNomeEE.Text;
int tel = Int32.Parse(panelFormFieldContacto.Text);
int telEE = Int32.Parse(panelFormFieldContactoEE.Text);
String emailPrefixo = panelFormFieldEmail.Text.Split('@')[0];
String emailDominio = panelFormFieldEmail.Text.Split('@')[1];
String emailPrefixoEE = panelFormFieldEmailEE.Text.Split('@')[0];
String emailDominioEE = panelFormFieldEmailEE.Text.Split('@')[1];
// Create command
String commandText = "GestaoEscola.EstudanteSP";
SqlCommand command = new SqlCommand(commandText, cn);
command.CommandType = CommandType.StoredProcedure;
// Add vars
command.Parameters.Add("@NMec", SqlDbType.Int);
command.Parameters["@NMec"].Value = nmec;
command.Parameters.Add("@Nome", SqlDbType.VarChar);
command.Parameters["@Nome"].Value = nome;
command.Parameters.Add("@Telemovel", SqlDbType.Int);
command.Parameters["@Telemovel"].Value = tel;
command.Parameters.Add("@Email", SqlDbType.VarChar);
command.Parameters["@Email"].Value = emailPrefixo;
command.Parameters.Add("@EmailDominio", SqlDbType.VarChar);
command.Parameters["@EmailDominio"].Value = emailDominio;
command.Parameters.Add("@NomeEE", SqlDbType.VarChar);
command.Parameters["@NomeEE"].Value = nomeEE;
command.Parameters.Add("@TelemovelEE", SqlDbType.Int);
command.Parameters["@TelemovelEE"].Value = telEE;
command.Parameters.Add("@EmailEE", SqlDbType.VarChar);
command.Parameters["@EmailEE"].Value = emailPrefixoEE;
command.Parameters.Add("@EmailDominioEE", SqlDbType.VarChar);
command.Parameters["@EmailDominioEE"].Value = emailDominioEE;
command.Parameters.Add("@Edit", SqlDbType.Bit);
if (edit)
{
command.Parameters["@Edit"].Value = 1;
}
command.Parameters["@Edit"].Value = 0;
// Return value stuff
var returnParameter = command.Parameters.Add("@ReturnVal", SqlDbType.Int);
returnParameter.Direction = ParameterDirection.ReturnValue;
// Execute query
int rowsAffected = 0;
int returnValue;
try
{
rowsAffected = command.ExecuteNonQuery();
returnValue = (int)returnParameter.Value;
Console.WriteLine(String.Format("rowsAffected {0}", rowsAffected));
}
catch (SqlException ex)
{
MessageBox.Show(
"Ocorreu um erro, verifique que preencheu todos os dados corretamente e tente novamente!\r\n" + ex.ToString(),
"Erro!",
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return;
}
// If query is successful
if (rowsAffected >= 2 && returnValue == 1)
{
// If add operation, construct object (was null)
if (!edit)
{
e = new Estudante();
}
e.nmec = nmec;
e.nome = nome;
e.email = emailPrefixo + "@" + emailDominio;
e.telemovel = tel;
e.nomeEE = nomeEE;
e.emailEE = emailPrefixoEE + "@" + emailDominioEE;
e.telemovelEE = telEE;
if (!edit)
{
listObjects.AddObject(e);
}
// SHow feedback to user
String successMessage = "O estudante foi adicionado com sucesso!";
if (edit)
{
successMessage = "O estudante foi editado com sucesso";
}
MessageBox.Show(
successMessage,
"Sucesso!",
MessageBoxButtons.OK,
MessageBoxIcon.Information
);
// Update objects displayed on interface
listObjects.BuildList(true);
// Update stats
updateStats();
// Hide panels
panelForm.Visible = false;
panelObject.Visible = false;
}
else
{
MessageBox.Show(
"Ocorreu um erro, verifique que preencheu todos os dados corretamente e tente novamente!",
"Erro!",
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
}
}
private void deleteObject()
{
// Get Object
if (listObjects.Items.Count == 0 | current < 0)
{
return;
}
Estudante e = (Estudante)listObjects.SelectedObjects[0];
// Confirm delete
DialogResult msgb = MessageBox.Show("Esta operação é irreversível!", "Tem a certeza que quer eliminar o estudante " + e.nmec.ToString() + "?", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
if (msgb == DialogResult.No)
{
return;
}
// Delete tuple on db
String commandText = "DELETE FROM GestaoEscola.Estudante WHERE NMec = @ID";
SqlCommand command = new SqlCommand(commandText, cn);
// Add vars
command.Parameters.Add("@ID", SqlDbType.Int);
command.Parameters["@ID"].Value = e.nmec;
// Execute query
int rowsAffected = 0;
try
{
rowsAffected = command.ExecuteNonQuery();
Console.WriteLine(String.Format("rowsAffected {0}", rowsAffected));
}
catch (SqlException ex)
{
MessageBox.Show(
"Ocorreu um erro, tente novamente!\r\n" + ex.ToString(),
"Erro!",
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return;
}
// If successful query
if (rowsAffected == 4)
{
// Remove object from interface list
listObjects.RemoveObject(e);
// Show user feedback
MessageBox.Show(
"O tuplo foi eliminado com sucesso da base de dados!",
"Sucesso!",
MessageBoxButtons.OK,
MessageBoxIcon.Information
);
// Update stats
updateStats();
// Hide panels
panelForm.Visible = false;
panelObject.Visible = false;
}
else
{
MessageBox.Show(
"Ocorreu um erro, tente novamente!",
"Erro!",
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
}
// Hide panels
panelForm.Visible = false;
panelObject.Visible = false;
}