private void BalanceCancelButton_Click(object sender, EventArgs e)
{
BalanceBindingSource.CancelEdit();
EnlargeDataGrid(BalanceDataGridView, BalanceAddButton, BalancePanel);
}
private void BalanceAddButton_Click(object sender, EventArgs e)
{
BalanceBindingSource.AddNew();
ReduceDataGrid(BalanceDataGridView, BalanceAddButton, BalancePanel);
}