public void Borrar()
{
AsignaturaCategoria fac = new AsignaturaCategoria();
fac.Id = Convert.ToInt32(this.txtId.Text);
db.borrarAsignaturaCategoria(fac);
cargarDataGrid();
edicion(false);
}
public bool Guardar()
{
edicion(false);
if (this.txtId.Text == "")
{
/*------------INSERTAR AsignaturaCategoria----------------*/
if (this.txtDescripcion.Text != "")
{
AsignaturaCategoria fac = new AsignaturaCategoria();
fac.Descripcion = this.txtDescripcion.Text;
insertAsignaturaCategoria(fac);
this.dgAsignaturaCategorias.Enabled = true;
cargarDataGrid();
this.txtId.DataBindings.Add("Text", AsignaturaCategoriasBindingSource, "Id");
this.txtDescripcion.DataBindings.Add("Text", AsignaturaCategoriasBindingSource, "Descripcion");
this.AsignaturaCategoriasBindingSource.MoveLast();
return true;
}
else
{
MessageBox.Show("Descripción no puede estar vacio.", "Error", MessageBoxButtons.OK);
return false;
}
/*---------FIN INSERTAR AsignaturaCategoria----------------*/
}
else
{
/*------------Actualizar AsignaturaCategoria----------------*/
if (this.txtDescripcion.Text != "")
{
AsignaturaCategoria fac = new AsignaturaCategoria();
fac.Id = Convert.ToInt32(this.txtId.Text);
fac.Descripcion = this.txtDescripcion.Text;
actualizarAsignaturaCategoria(fac);
this.dgAsignaturaCategorias.Enabled = true;
cargarDataGrid();
return true;
}
else
{
MessageBox.Show("Descripción no puede estar vacio","Error",MessageBoxButtons.OK);
return false;
}
/*---------FIN Actualizar AsignaturaCategoria----------------*/
}
}
public Boolean insertAsignaturaCategoria(AsignaturaCategoria AsignaturaCategoria)
{
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 asignatura_categoria(Descripcion) values(@descripcion);" + "SELECT CAST(scope_identity() AS int)";
this.command.Parameters.Add(new SqlParameter("@descripcion", SqlDbType.NVarChar, 50));
this.command.Parameters["@descripcion"].Value = AsignaturaCategoria.Descripcion;
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();
}
}
public Boolean actualizarAsignaturaCategoria(AsignaturaCategoria AsignaturaCategoria)
{
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 asignatura_categoria set descripcion=@descripcion where id_categoria=@id;";
this.command.Parameters.Add(new SqlParameter("@descripcion", SqlDbType.NVarChar, 50));
this.command.Parameters.Add(new SqlParameter("@id", SqlDbType.Int));
this.command.Parameters["@descripcion"].Value = AsignaturaCategoria.Descripcion;
this.command.Parameters["@id"].Value = AsignaturaCategoria.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();
}
}
/*--------------------FIN CATALOGO PeriodoS------------------------*/
/*--------------------Catalogo de AsignaturaCategorias-------------------------*/
public List<AsignaturaCategoria> getAsignaturaCategorias()
{
SqlDataReader dataReader = null;
List<AsignaturaCategoria> AsignaturaCategorias = new List<AsignaturaCategoria>();
try
{
string query = "Select * from asignatura_categoria";
command = new SqlCommand(query, connection);
command.Connection.Open();
dataReader = command.ExecuteReader();
while (dataReader.Read())
{
AsignaturaCategoria edi = new AsignaturaCategoria();
edi.Id = Convert.ToInt32(dataReader["id_categoria"].ToString());
edi.Descripcion = dataReader["descripcion"].ToString();
AsignaturaCategorias.Add(edi);
}
return AsignaturaCategorias;
}
catch (Exception e)
{
throw new Exception("Error al obtener datos de AsignaturaCategoria. " + e.Message.ToString());
}
finally
{
command.Connection.Close();
}
}
public Boolean borrarAsignaturaCategoria(AsignaturaCategoria AsignaturaCategoria)
{
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 asignatura_categoria where id_categoria=@id;";
this.command.Parameters.Add(new SqlParameter("@id", SqlDbType.Int));
this.command.Parameters["@id"].Value = AsignaturaCategoria.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();
}
}
private bool insertAsignaturaCategoria(AsignaturaCategoria fac)
{
try
{
db.insertAsignaturaCategoria(fac);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
return true;
}
private bool actualizarAsignaturaCategoria(AsignaturaCategoria fac)
{
try
{
db.actualizarAsignaturaCategoria(fac);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
return true;
}