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Pawel
210
Load on Demand not working in SR 11.1.20111.2116
posted

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.SqlClient
Imports 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 Sub

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.