//根据商品类别id查找该类别下所有的产品，并加载出来
private void LoadProduct(int p, TreeNodeCollection tnc)
{
ProductInfoBLL bll = new ProductInfoBLL();
List <ProductInfo> list = bll.GetProductInfoByCatId(p);
foreach (ProductInfo item in list)
{
tnc.Add(item.ProName + "====" + item.ProPrice + "元");
}
}
private void LoadProductInfoByCatId(int catId, TreeNodeCollection nodes)
{
var bll = new ProductInfoBLL();
var listProds = bll.GetProductInfoByCatId(catId);
foreach (var pro in listProds)
{
nodes.Add(pro.ProName + "===" + pro.ProPrice + "元");
}
}
private void cmbCategory_SelectedValueChanged(object sender, EventArgs e)
{
if (cmbCategory.SelectedIndex != 0)
{
var id = Convert.ToInt32(cmbCategory.SelectedValue);
dgvProductInfo.DataSource = proiBll.GetProductInfoByCatId(id);
}
else
{
LoadCategoryInfoByDelFlag(0);
}
}
private void cmbCategory_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbCategory.SelectedIndex == 0)
{
LoadProductInfoByDelFlag(0);//查询所有的产品
}
else
{
int id = Convert.ToInt32(cmbCategory.SelectedValue);
//根据商品类别的id去产品的表中查询该类别下的所有的产品,重新绑定到dgvproduct上
ProductInfoBLL bll = new ProductInfoBLL();
dgvProductInfo.AutoGenerateColumns = false;
dgvProductInfo.DataSource = bll.GetProductInfoByCatId(id);
dgvProductInfo.SelectedRows[0].Selected = false;
}
}
private void cmbCategory_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbCategory.SelectedIndex != 0)
{
ProductInfoBLL bll = new ProductInfoBLL();
dgvProductInfo.AutoGenerateColumns = false;
dgvProductInfo.DataSource = bll.GetProductInfoByCatId(Convert.ToInt32(cmbCategory.SelectedValue));
if (dgvProductInfo.Rows.Count > 0)
{
dgvProductInfo.SelectedRows[0].Selected = false;
}
else
{
LoadProductInfoByDelFlag(0);
}
}
}
private void cmbCategory_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbCategory.SelectedIndex == 0)
{
LoadProductInfoByDelFlag(0);
}
else
{
int id = Convert.ToInt32(cmbCategory.SelectedValue);
ProductInfoBLL bll = new ProductInfoBLL();
List <ProductInfo> list = bll.GetProductInfoByCatId(id);
if (list.Count > 0)
{
dgvProductInfo.AutoGenerateColumns = false;
dgvProductInfo.DataSource = list;
dgvProductInfo.SelectedRows[0].Selected = false;
}
}
}
