private void BillPage_KeyUp(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.F2)
{
Print_Bill_Btn_Click(null, null);
Product_Search_Textbox.Focus();
}
else if (e.KeyCode == Keys.Enter)
{
if (!Product_Search_ListBox.Visible && !isBillPrinted)
{
Add_button_Click(null, null);
}
else if (isBillPrinted)
{
BillDetailsUpdation();
}
else if (Product_Search_ListBox.Visible && Product_Search_ListBox.Items.Count == 1)
{
ProductIdEntered();
}
else if (Product_Search_ListBox.Visible && Product_Search_ListBox.SelectedIndex != -1)
{
Product_Search_ListBox_MouseClick(null, null);
}
}
else if (e.KeyCode == Keys.Up)
{
if (Product_Search_ListBox.Visible && Product_Search_ListBox.Items.Count > 0 &&
Product_Search_ListBox.SelectedIndex != 0)
{
Product_Search_ListBox.Focus();
Product_Search_ListBox.Select();
}
if (Product_Search_ListBox.Visible && Product_Search_ListBox.Items.Count > 0 &&
Product_Search_ListBox.SelectedIndex == 0)
{
Product_Search_Textbox.Focus();
}
}
else if (e.KeyCode == Keys.Down && Product_Search_ListBox.Items.Count > 0)
{
if (Product_Search_ListBox.Visible)
{
Product_Search_ListBox.Focus();
Product_Search_ListBox.Select();
}
}
else if (e.KeyCode == Keys.F3)
{
Cancel_Button_Click(null, null);
}
else if (e.KeyCode == Keys.Tab)
{
if (Product_Search_ListBox.Visible && Product_Search_ListBox.Items.Count == 1)
{
ProductIdEntered();
}
}
}
private void BillPage_KeyUp(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.F5)
{
Print_Bill_Btn_Click(null, null);
}
else if (e.KeyCode == Keys.Enter)
{
if (!Product_Search_ListBox.Visible)
{
Add_button_Click(null, null);
}
else
{
Product_Search_ListBox_MouseClick(null, null);
}
}
else if (e.KeyCode == Keys.Up)
{
if (Product_Search_ListBox.Visible)
{
Product_Search_ListBox.Focus();
}
}
else if (e.KeyCode == Keys.Down)
{
if (Product_Search_ListBox.Visible)
{
Product_Search_ListBox.Focus();
}
}
}