private void cargarListaPredios()
{
lstPredios.Update();
lstPredios.DataSource = ge.listaPredios();
lstPredios.ValueMember = "id";
lstPredios.DisplayMember = "";
lstPredios.SelectedIndex = -1;
}
private void cargarTodosLosCombos()
{
cmbDeporte.Update();
cmbDeporte.DataSource = gd.listaDeporte();
cmbDeporte.ValueMember = "id";
cmbDeporte.DisplayMember = "";
cmbDeporte.SelectedIndex = -1;
cmbPredio.Update();
cmbPredio.DataSource = ge.listaPredios();
cmbPredio.ValueMember = "id";
cmbPredio.DisplayMember = "";
cmbPredio.SelectedIndex = -1;
txtPrecioMatricula.Text = "0";
}