private void AddData() { if (tabControl1.SelectedTab == tabList) { ItemForm frmItem = new ItemForm(categoryDataSet1); DialogResult drRet = frmItem.ShowDialog(); if (drRet == DialogResult.OK) { moneyDataSet.MoneyDataTable.AddMoneyDataTableRow( frmItem.monCalendar.SelectionRange.Start, frmItem.cmbCategory.Text, frmItem.txtItem.Text, int.Parse(frmItem.mtxtMoney.Text), frmItem.txtRemarks.Text ); } } }