public void Borrar()
{
Facultad fac = new Facultad();
fac.Id = Convert.ToInt32(this.txtId.Text);
db.borrarFacultad(fac);
cargarDataGrid();
edicion(false);
}
public Boolean actualizarFacultad(Facultad facultad)
{
this.connection.Open();
this.command = this.connection.CreateCommand();
this.transaction = this.connection.BeginTransaction();
this.command.Connection = this.connection;
this.command.Transaction = this.transaction;
try
{
this.command.CommandText = "Update Facultad set descripcion=@descripcion,color=@color where id_facultad=@id;";
this.command.Parameters.Add(new SqlParameter("@descripcion", SqlDbType.NVarChar, 50));
this.command.Parameters.Add(new SqlParameter("@id", SqlDbType.Int));
this.command.Parameters.Add(new SqlParameter("@color", SqlDbType.Int));
this.command.Parameters["@descripcion"].Value = facultad.Descripcion;
this.command.Parameters["@color"].Value = facultad.Color.ToArgb();
this.command.Parameters["@id"].Value = facultad.Id;
this.command.ExecuteNonQuery();
this.transaction.Commit();
return true;
}
catch (Exception e)
{
try
{
this.transaction.Rollback();
throw new Exception("Error al Actualizar." + e.Message);
return false;
}
catch (Exception ex)
{
throw new Exception("Error al rollback accion."+ ex.Message);
return false;
}
}
finally
{
this.connection.Close();
}
}
public Boolean insertFacultad(Facultad facultad)
{
this.connection.Open();
this.command = this.connection.CreateCommand();
this.transaction = this.connection.BeginTransaction();
this.command.Connection = this.connection;
this.command.Transaction = this.transaction;
try
{
this.command.CommandText = "insert into Facultad(Descripcion,color) values(@descripcion,@color);" + "SELECT CAST(scope_identity() AS int)";
this.command.Parameters.Add(new SqlParameter("@descripcion", SqlDbType.VarChar, 50));
this.command.Parameters.Add(new SqlParameter("@color", SqlDbType.Int));
this.command.Parameters["@descripcion"].Value = facultad.Descripcion;
this.command.Parameters["@color"].Value = facultad.Color.ToArgb();
this.lastUpdated = this.command.ExecuteScalar().ToString();
this.transaction.Commit();
return true;
}
catch (Exception e)
{
try
{
transaction.Rollback();
throw new Exception("Error al insertar registro. " + e.Message);
return false;
}
catch (Exception ex)
{
throw new Exception("Error al roolback accion. " + ex.Message);
}
}
finally
{
this.connection.Close();
}
}
/*--------------------Catalogo de Facultades-------------------------*/
public List<Facultad> getFacultades()
{
SqlDataReader dataReader = null;
List<Facultad> facultades = new List<Facultad>();
try
{
string query = "Select * from facultad";
command = new SqlCommand(query, connection);
command.Connection.Open();
dataReader = command.ExecuteReader();
while (dataReader.Read())
{
Facultad fac = new Facultad();
fac.Id = Convert.ToInt32(dataReader["id_facultad"].ToString());
fac.Descripcion = dataReader["descripcion"].ToString();
fac.Color = Color.FromArgb((int)dataReader["color"]);
facultades.Add(fac);
}
return facultades;
}
catch (Exception e)
{
throw new Exception("Error al obtener datos de Facultad. "+e.Message.ToString());
}
finally
{
command.Connection.Close();
}
}
public Boolean borrarFacultad(Facultad facultad)
{
this.connection.Open();
this.command = this.connection.CreateCommand();
this.transaction = this.connection.BeginTransaction();
this.command.Connection = this.connection;
this.command.Transaction = this.transaction;
try
{
this.command.CommandText = "delete from Facultad where id_facultad=@id;";
this.command.Parameters.Add(new SqlParameter("@id", SqlDbType.Int));
this.command.Parameters["@id"].Value = facultad.Id;
this.command.ExecuteNonQuery();
this.transaction.Commit();
return true;
}
catch (Exception e)
{
try
{
this.transaction.Rollback();
throw new Exception("Error al borrar registro. " + e.Message);
return false;
}
catch (Exception ex)
{
throw new Exception("Error al rollback acción. " + ex.Message);
return false;
}
}
finally
{
this.connection.Close();
}
}
public bool Guardar()
{
edicion(false);
if (this.txtId.Text == "")
{
/*------------INSERTAR FACULTAD----------------*/
if (this.txtDescripcion.Text != "")
{
Facultad fac = new Facultad();
fac.Descripcion = this.txtDescripcion.Text;
fac.Color = colorPickerButton1.SelectedColor;
insertFacultad(fac);
this.dgFacultades.Enabled = true;
cargarDataGrid();
this.txtId.DataBindings.Add("Text", FacultadesBindingSource, "Id");
this.txtDescripcion.DataBindings.Add("Text", FacultadesBindingSource, "Descripcion");
this.FacultadesBindingSource.MoveLast();
return true;
}
else
{
MessageBox.Show("Descripción no puede estar vacio.", "Error", MessageBoxButtons.OK);
return false;
}
/*---------FIN INSERTAR FACULTAD----------------*/
}
else
{
/*------------Actualizar FACULTAD----------------*/
if (this.txtDescripcion.Text != "")
{
Facultad fac = new Facultad();
fac.Id = Convert.ToInt32(this.txtId.Text);
fac.Descripcion = this.txtDescripcion.Text;
fac.Color = this.colorPickerButton1.SelectedColor;
actualizarFacultad(fac);
this.dgFacultades.Enabled = true;
cargarDataGrid();
return true;
}
else
{
MessageBox.Show("Descripción no puede estar vacio","Error",MessageBoxButtons.OK);
return false;
}
/*---------FIN Actualizar FACULTAD----------------*/
}
}
private bool insertFacultad(Facultad fac)
{
try
{
db.insertFacultad(fac);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
return true;
}
private bool actualizarFacultad(Facultad fac)
{
try
{
db.actualizarFacultad(fac);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
return true;
}
