Hi,
In new release load on demand stop working at all.
My sample:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="InfragisticsTests._Default" %>
<%@ Register Assembly="Infragistics35.Web.v11.1, Version=11.1.20111.2116, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" Namespace="Infragistics.Web.UI.NavigationControls" TagPrefix="ig" %>
<!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></title></head><body> <form id="form1" runat="server"> <div> <asp:ScriptManager runat="server" ID="scriptManager"></asp:ScriptManager> <ig:WebDataTree ID="VariablesTree" runat="server" Height="490px" Width="100%" Font-Size="Small" InitialExpandDepth="1" CheckBoxMode="BiState" EnableConnectorLines="true" AnimationDuration="300" AnimationEquationType="Linear" EnableAjax="true" InitialDataBindDepth="1" AjaxIndicator-Location="TopLeft" AjaxIndicator-RelativeToControl="True" EnableAjaxViewState="true" StyleSetName="Windows7" > <DataBindings> <ig:DataTreeNodeBinding DataMember="node" ValueField="id" TextField="text" KeyField="flags" /> <ig:DataTreeNodeBinding DataMember="root" ValueField="id" TextField="text" KeyField="flags" /> </DataBindings> </ig:WebDataTree> <asp:Label runat="server" ID="label1" text="1"></asp:Label> </div> </form></body></html>
and code
Imports System.Data.SqlClientImports System.Xml
Partial Public Class _Default Inherits System.Web.UI.Page
Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init 'Dim _captcha As New Captcha.Captcha()
'form1.Controls.Add(_captcha)
'Dim obj_Type As Type = System.Reflection.Assembly.Load("Captcha, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null").GetType("Captcha.Captcha", False, True) 'Dim obj_Control As Object = obj_Type.GetConstructor(New System.Type() {}).Invoke(New Object() {}) 'form1.Controls.Add(obj_Control)
Dim connection As New SqlConnection("Server=norsql09;database=PersonicxPlanner;trusted_connection=yes")
connection.Open() Dim cmd As SqlCommand = connection.CreateCommand()
cmd.CommandText = CommandType.Text
cmd.CommandText = "SELECT [pcx].[fnx_get_variables_as_xml](@product_id) AS variablesXml" Dim param As New SqlParameter("product_id", SqlDbType.Int, 0) param.Value = 0 cmd.Parameters.Add(param) Dim reader As SqlDataReader = cmd.ExecuteReader()
reader.Read()
Dim ds As New XmlDataSource() ds.Data = reader(0) ds.ID = "test" & DateTime.Now
reader.Close() VariablesTree.DataSource = ds Session("ds") = ds connection.Close() VariablesTree.DataBind() End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load VariablesTree.DataSource = CType(Session("ds"), XmlDataSource) VariablesTree.DataBind()
End Sub
Protected Sub Page_UnLoad(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Unload
End Class
Tree is generated, first time all is working fine (tree is populated) but second try ends with asyn error alert box and excetpion:
Exception of type 'System.Web.HttpUnhandledException' was thrown. Stack Trace : at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.AsyncPageProcessRequestBeforeAsyncPointCancellableCallback(Object state) at System.Web.HttpContext.InvokeCancellableCallback(WaitCallback callback, Object state) at System.Web.UI.Page.AsyncPageBeginProcessRequest(HttpContext context, AsyncCallback callback, Object extraData) at ASP.apagegen_aspx.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object data) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Source :System.Web Inner Exception :Object reference not set to an instance of an object. Stack Trace : at Infragistics.Web.UI.NavigationControls.WebDataTree.CallbackCreated(CallbackObject callbackObject) at Infragistics.Web.UI.Framework.Data.HierarchicalDataBoundControlMain.Infragistics.Web.UI.IControlCallback.CallbackCreated(CallbackObject callbackObject) at Infragistics.Web.UI.Framework.RunBot.CallbackCreatedRecursive(CallbackObject callbackObject) at Infragistics.Web.UI.Framework.RunBot.HandleLoadPostData(String postDataKey, NameValueCollection postCollection) at Infragistics.Web.UI.NavigationControls.DataTreeBot.HandleLoadPostData(String postDataKey, NameValueCollection postCollection) at Infragistics.Web.UI.Framework.Data.HierarchicalDataBoundControlMain.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) Source :Infragistics35.Web.v11.1
The same configuration works fine in previous SR.
It is a little funny that the main functioanlity of data tree is corrupted.
Hi bmieln,
Please let me know if you need further assistance.
Apologies for the delayed response.
Please try the same configuration without calling the DataBind() method. Also can you provide some information about the number of nodes that are being fetched on demand.
Best Regards,
Petar IvanovDeveloper Support EngineerInfragistics, Inc.http://ko.infragistics.com/support
the same in the newest SR 11.1.20111.2135
Are you reading this forum?
Hi
Exactly the same issue with:
Infragistics35.Web.v11.2, Version=11.2.20112.1019
The same setup, the same scenario, the same exception.