private void Add_Items()
{
if (!isColumnCreated)
{
Purchase_data.Columns.Add("Item Number");
Purchase_data.Columns.Add("Item Name");
Purchase_data.Columns.Add("Quantity");
Purchase_data.Columns.Add("Price");
Purchase_data.Columns.Add("Total Price");
isColumnCreated = true;
}
double x, y, z, sum;
x = Convert.ToDouble(iQtytxt.Text);
y = Convert.ToDouble(iPrice);
z = Convert.ToDouble(iPricetxt.Text);
sum = (x * y) + z;
iPricetxt.Text = Math.Round(sum, 2).ToString();
Purchase_data.Rows.Add(iNumbertxt.Text, iName, iQtytxt.Text, iPrice, Math.Round((x * y), 2).ToString());
DisplayData.DataSource = Purchase_data;
DisplayData.AutoResizeColumns();
DisplayData.AutoResizeRows();
iNumbertxt.Text = "";
iQtytxt.Text = "";
}
