private void LoadItem()
{
IItem bll = new ItemBLL();
int cb_index = Conv.ToInt(cb.SelectedValue);
string selectedNode = this.tv.SelectedNode == null ? "" : this.tv.SelectedNode.Tag.ToString();
if (cb_index == 1)
{
tb = bll.GetDataTable(selectedNode, "", 0, 1, 999999999, out cb_index);
}
else if (cb_index == 2)
{
tb = bll.GetDataTable_BySup(selectedNode, "", 0, 1, 999999999, out cb_index);
}
else
{
tb = bll.GetDataTable("", "", 0, 1, 999999999, out cb_index);
}
}