private void LoadProductInfoByCatId(int p, TreeNodeCollection tnc)
{
ProductInfoBLL bll = new ProductInfoBLL();
List<ProductInfo> list = bll.GetProductInfoByCatId(p);
for(int i=0; i<list.Count; i++)
{
tnc.Add(list[i].ProName + "====="+list[i].ProPrice+"元");
}
}
private void cmbCategory_SelectedIndexChanged(object sender, EventArgs e)
{
if(cmbCategory.SelectedIndex !=0)
{
int id = Convert.ToInt32(cmbCategory.SelectedValue);
ProductInfoBLL bll = new ProductInfoBLL();
dgvProductInfo.AutoGenerateColumns = false;
dgvProductInfo.DataSource = bll.GetProductInfoByCatId(id);
if(dgvProductInfo.SelectedRows.Count>0)
{
dgvProductInfo.SelectedRows[0].Selected = false;
}
}
else
{
LoadProductInfoByDelFlag(0);
}
}