Dim Val As String = Nothing
If InputValue(Val,"增加节点","请输入您的节点内容") Then
Dim dr As DataRow = DataTables("制度流程表格").AddNew
dr("大类") = Val
Dim tr As WinForm.TreeView
Dim nd As WinForm.TreeNode
tr = e.Form.Controls("TreeView1")
nd = tr.Nodes.Add(Val)
'nd = tr.Nodes.Add("新节点")
tr.SelectedNode = nd
tr.Select()
tr.BeginEdit()
Else
MessageBox.Show("不能为空!","提示")
End If