I am using the Treeview and i am going to have only three levels in that tree view.
+Level 1
+ Level 2
Level 3
This is how my TreeView should look. For 'Level 3' there will not be any children and its going to be a HyperLink.
Please Note: Level 2 will have more than 1 nodes i.e., it will have 'Level 3a',''Level 3b' and so on. All the levels are query based.
How should i not show a '+' sign for the Level 3?
Please let me know,
-Thank you
Tyra
4 Answers, 1 is accepted
If you are using LoadOnDemand you should set the ExpandMode property to ClientSide for nodes which should not have children. This technique is demonstrated in this online demo (expand to the fourth level).
Regards,
Albert
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Rank 1
Here's my code for the aspx and code-behind.
aspx:
-----
<telerik:RadTreeView id="RadTreeView1" runat="server" height="300px" width="300px"onnodeexpand="RadTreeView1_NodeExpand" />
code-behind:
----------------
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
LoadRootNodes()
End If
End Sub
--------------------------------------
Private
Sub LoadRootNodes()
Dim
oradb As String = "Data Source=(DESCRIPTION=(ADDRESS_LIST=" _
+
"(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=)))" _
+
"(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=)));" _
+
"User Id=;Password=;"
Dim conn As New OracleConnection(oradb)
conn.Open()
Dim sql As New OracleCommand("some select statement,conn)
Dim adapter As New OracleDataAdapter(sql)
Dim data As New DataTable()
adapter.Fill(data)
For Each row As DataRow In data.Rows
Dim node As New RadTreeNode()
node.Text = row(
"GROUP_DESC")
node.Value = row(
"GROUP_ID")
node.ExpandMode = TreeNodeExpandMode.ServerSideCallBack
RadTreeView1.Nodes.Add(node)
Next
conn.Close()
conn.Dispose()
End Sub
------------------------------------
Protected Sub RadTreeView1_NodeExpand(ByVal sender As Object, ByVal e As RadTreeNodeEventArgs) Handles RadTreeView1.NodeExpand
Dim
oradb As String = "Data Source=(DESCRIPTION=(ADDRESS_LIST=" _
+
"(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=)))" _
+
"(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=)));" _
+
"User Id=;Password=;"
Dim conn As New OracleConnection(oradb)
conn.Open()
Dim
sql As New OracleCommand("SELECT rug.user_group_id, rug.user_group_desc, rh.code_hotel FROM rpt_user_groups rug, rpt_user_group_xref rugx, rpt_hotels rh WHERE rugx.rpt_user_group_parent_id in :ParentId AND rugx.rpt_user_group_child_id = rug.user_group_id AND rug.user_group_id = rh.user_group_id(+) ORDER BY rug.user_group_desc,rug.user_group_id", conn) ' VB.NET
sql.Parameters.Add(
":ParentId", e.Node.Value)
Dim adapter As New OracleDataAdapter(sql)
Dim
data As New DataTable()
adapter.Fill(data)
Dim cnt As Integer
cnt = data.Rows.Count
For Each row As DataRow In data.Rows
Dim node As New RadTreeNode()
node.Text = row(
"GROUP_DESC")
node.Value = row(
"GROUP_ID")
If
cnt > 0 Then
node.ExpandMode = TreeNodeExpandMode.ServerSideCallBack
End If
e.Node.Nodes.Add(node)
Next
e.Node.Expanded =
True
End Sub
------------------------------------------------------------------------------------------------------
I have tried
node.ExpandMode = TreeNodeExpandMode.ClienSide in LoadRootNodes() and
RadTreeView1_NodeExpand event handler. That did not help.
Could you please check and let me know where i need to set the property?
Thank you,
xyz
Rank 1
I followed the same procedure but still the '+' is there .
With Thanks & Regards
Manoj
Rank 2
Give a try with the following client side code.
JS:
| var tree = $find("<%= RadTreeView1.ClientID %>"); |
| var nodeCount=tree.get_nodes().get_count(); |
| for (var i=0; i<tree.get_nodes().get_count();i++) |
| { |
| var node = tree.get_nodes().getNode(i); |
| if(node.get_index()==nodeCount-1) |
| { |
| var toggleElement = node.get_toggleElement(); |
| if (toggleElement) |
| toggleElement.style.display = "none"; |
| } |
| } |
Shinu