private void DropDownListBind()
{
ddl.Items.Clear();
dt =
Productmanage.Instance.GetAllProCate();
if (dt !=
null)
bindTree(dt, 0,
0);
ddl.Items.Insert(0,
new ListItem(
"所有分类",
"0"));
}
private void bindTree(DataTable dt,
int parentId,
int dep)
{
dep++
;
foreach (DataRow dr
in dt.Select(
"parent_cid=" +
parentId))
{
ddl.Items.Add(new ListItem(showNull(dep) + dr[
"name"], dr[
0].ToString()));
bindTree(dt, Convert.ToInt32(dr["cid"]), dep);
}
}
private string showNull(
int dep)
{
string str =
null;
for (
int i =
1; i < dep; i++
)
str +=
" ";
return str +
"|-";
}
转载于:https://www.cnblogs.com/daixingqing/archive/2012/11/13/2768417.html
相关资源：WinForm_TreeView递归绑定Demo
