private void cboitemcategory_SelectedIndexChanged(object sender, EventArgs e)
{
if (cboitemcategory.Text != "" && cboitemcategory.Text != "Choose One" && cboitemcategory.SelectedIndex != 0)
{
DataTable dt = blod.get_item_by_cateogory_id(Convert.ToInt32((cboitemcategory.SelectedValue)));
if (dt.Rows.Count > 0)
{
DataRow dr = dt.NewRow();
dr["item_name"] = "Choose One";
dt.Rows.InsertAt(dr, 0);
cbo_item_name.DataSource = dt;
cbo_item_name.DisplayMember = "item_name";
cbo_item_name.ValueMember = "item_id";
}
}
}
