Rank: Advanced Member
Groups: Member
Joined: 5/31/2007
Posts: 36
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every time i post back the item gets populated and creating new level of nodes (when the populate on demand = false)
please look at this example
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%@ register assembly="EO.Web" namespace="EO.Web" tagprefix="eo" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<eo:treeview id="TreeView1" raisesserverevent="true" runat="server" height="250px" width="200px" controlskinid="None">
<looknodes>
<eo:treenode collapsedimageurl="00030301" disabledstyle-csstext="background-color:transparent;border-bottom-style:none;border-left-style:none;border-right-style:none;border-top-style:none;color:Gray;padding-bottom:1px;padding-left:1px;padding-right:1px;padding-top:1px;"
expandedimageurl="00030302" imageurl="00030301" itemid="_Default" normalstyle-csstext="PADDING-RIGHT: 1px; PADDING-LEFT: 1px; PADDING-BOTTOM: 1px; COLOR: black; BORDER-TOP-STYLE: none; PADDING-TOP: 1px; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; BACKGROUND-COLOR: transparent; BORDER-BOTTOM-STYLE: none"
selectedstyle-csstext="background-color:#316ac5;border-bottom-color:#999999;border-bottom-style:solid;border-bottom-width:1px;border-left-color:#999999;border-left-style:solid;border-left-width:1px;border-right-color:#999999;border-right-style:solid;border-right-width:1px;border-top-color:#999999;border-top-style:solid;border-top-width:1px;color:White;padding-bottom:0px;padding-left:0px;padding-right:0px;padding-top:0px;">
</eo:treenode>
</looknodes>
<topgroup style-csstext="border-bottom-color:#999999;border-bottom-style:solid;border-bottom-width:1px;border-left-color:#999999;border-left-style:solid;border-left-width:1px;border-right-color:#999999;border-right-style:solid;border-right-width:1px;border-top-color:#999999;border-top-style:solid;border-top-width:1px;color:black;cursor:hand;font-family:Tahoma;font-size:8pt;padding-bottom:2px;padding-left:2px;padding-right:2px;padding-top:2px;">
<nodes>
<eo:treenode imageurl="00030303" populateondemand="True" text="Main Node">
</eo:treenode>
</nodes>
</topgroup>
</eo:treeview>
</form>
</body>
</html>
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub TreeView1_ItemPopulate(ByVal sender As Object, ByVal e As EO.Web.NavigationItemEventArgs) Handles TreeView1.ItemPopulate
Dim node As New EO.Web.TreeNode
node.Text = "New Node"
node.PopulateOnDemand = False
e.TreeNode.ChildNodes.Add(node)
End Sub
End Class
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,194
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Hi Ilan,
This should be normal. What you see is not a "fresh" populate on demand, but a "replay" of a previous populate on demand. Our TreeView logs all populate on demand triggered on the client and replay them when the page postbacks. This way the TreeView will be the same as last seen on the client. Otherwise your server side code won't see nodes populated through populate on demand.
Thanks
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