c# treeview生成树.docx 亲测可用 截一小段代码
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
db sdb = new db("bests");
DataView dv = sdb.sdt("select * from company");
foreach (DataRowView datav in dv)
{
TreeNode tn = new TreeNode();
tn.Text = datav["name"].ToString();
tn.Value = datav["companyid"].ToString();
tn.Expanded =false;
tn.ImageUrl = "images/j.gif";
// tn.ExpandedImageUrl = "images/1.jpg";//展开节目显示图片
// tn.SelectedImageUrl = "images/1.jpg";//
this.TreeView1.Nodes.Add(tn);
addchildnode(tn);
}
}
