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Drag and drop wont' work on on one of two web applications using same page

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AsyncUpload
This is a migrated thread and some comments may be shown as answers.
Michael
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Michael asked on 06 Jan 2014, 03:20 PM
I'm absolutely stumped.  I have two separate web applications both running virtually the identical aspx page.  Both use the 4.0 framework.  The drag and drop feature works in one application and does not work on the other application (see exception below).  This is a simple page with the Rad AsyncUpload control and two drop zones.  Again, the css, markup, and code-behind pages are virtually identical.  The only difference between the two is one page has a namespace while the other page does not.  Application 1 is "Snausages" and Application 2 is "AgencyHome".  The page with the Namespace is "AgencyHome" - Namespace is AgencyHome.UI.

1. Drag and drop works flawlessly in Snausages.
2. Drag and drop does not work in AgencyHome.

What is also unusual is that if I run both applications in debug from Visual Studio 2010 at the same time something odd happens.
1. If I start Snausages in the debugger first, then AgencyHome in the debugger second, the drag and drop feature works perfectly in both web applications.

2.  If I start AgencyHome in the debugger first then Snausages won't even load in the browser.  The debugger provides no error message, nothing.
Markup from Snausages which always works.
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="RadUpload.aspx.vb" Inherits="Snausages.RadUpload" %>
<%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<head runat="server">
    <title></title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js" type="text/javascript"></script>
    <link href="Styles/Upload/AsyncUpload.Metro.css" rel="Stylesheet" type="text/css" />
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <table style="font-family: Arial, Helvetica, sans-serif;" cellpadding="10">
            <tr>
                <td>
                    <telerik:RadAsyncUpload ID="RadAsyncUpload1" runat="server" AllowedFileExtensions="jpg,png,pdf,xls,xlsx,doc,docx" DropZones="#DropZone1,#DropZone2" >
                        <FileFilters>
                            <telerik:FileFilter Description="Documents" Extensions="pdf,xls,xlsx,doc,docx,jpg,png" />
                        </FileFilters>
                    </telerik:RadAsyncUpload>
                </td>
                <td>
                    <div id="DropZone1">
                        <p>Send to ASUREA</p>
                        <p>Drop Applications Here</p>
                    </div>
                </td>
                <td>
                <asp:Panel ID="DropZone2" runat="server">
                    <p>Using Panel</p>
                    <p>Drop Files Here</p>
                </asp:Panel>
                </td>
            </tr>
            <tr>
                <td>
                     <asp:Button ID="uploadButton" runat="server" Text="Upload" />
                </td>
            </tr>
        </table>
    </div>
    </form>
    <script type="text/javascript">
    //<![CDATA[
        var $ = $telerik.$;
        function pageLoad() {
            if (!Telerik.Web.UI.RadAsyncUpload.Modules.FileApi.isAvailable()) {
                $(".qsf-demo-canvas").html("<strong>Your browser does not support Drag and Drop. Please take a look at the info box for additional information.</strong>");
            }
            else {
                $(document).bind({ "drop": function (e) { e.stopPropagation(); e.preventDefault(); } });
                var dropZone1 = $(document).find("#DropZone1");
                dropZone1.bind({ "dragenter": function (e) { dragEnterHandler(e, dropZone1); } })
                                    .bind({ "dragleave": function (e) { dragLeaveHandler(e, dropZone1); } })
                                    .bind({ "drop": function (e) { dropHandler(e, dropZone1); } });
                var dropZone2 = $(document).find("#DropZone2");
                dropZone2.bind({ "dragenter": function (e) { dragEnterHandler(e, dropZone2); } })
                                    .bind({ "dragleave": function (e) { dragLeaveHandler(e, dropZone2); } })
                                    .bind({ "drop": function (e) { dropHandler(e, dropZone2); } });
            }
        }
 
        function dropHandler(e, dropZone) {
            dropZone[0].style.backgroundColor = "#357A2B";
        }
 
        function dragEnterHandler(e, dropZone) {
            var dt = e.originalEvent.dataTransfer;
            var isFile = (dt.types !== null && (dt.types.indexOf ? dt.types.indexOf('Files') != -1 : dt.types.contains('application/x-moz-file')));
            if (isFile || $telerik.isSafari5 || $telerik.isIE10Mode || $telerik.isOpera)
                dropZone[0].style.backgroundColor = "#000000";
        }
 
        function dragLeaveHandler(e, dropZone) {
            if (!$telerik.isMouseOverElement(dropZone[0], e.originalEvent))
                dropZone[0].style.backgroundColor = "#357A2B";
        }
    //]]>
    </script>
</body>
</html>

Markup from AgencyHome which doesn't work unless Snausages is running in debug mode in the browser first.

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="RadUpload.aspx.vb" Inherits="AgencyHome.UI.RadUpload" %>
<%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<head runat="server">
    <title></title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js" type="text/javascript"></script>
    <link href="/App_Themes/Upload/AsyncUpload.Metro.css" rel="Stylesheet" type="text/css" />
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <table style="font-family: Arial, Helvetica, sans-serif;" cellpadding="10">
            <tr>
                <td>
                    <telerik:RadAsyncUpload ID="RadAsyncUpload1" runat="server" AllowedFileExtensions="jpg,png,pdf,xls,xlsx,doc,docx" DropZones="#DropZone1,#DropZone2" >
                        <FileFilters>
                            <telerik:FileFilter Description="Documents" Extensions="pdf,xls,xlsx,doc,docx,jpg,png" />
                        </FileFilters>
                    </telerik:RadAsyncUpload>
                </td>
                <td>
                    <div id="DropZone1">
                        <p>Send to ASUREA</p>
                        <p>Drop Applications Here</p>
                    </div>
                </td>
                <td>
                <asp:Panel ID="DropZone2" runat="server">
                    <p>Using Panel</p>
                    <p>Drop Files Here</p>
                </asp:Panel>
                </td>
            </tr>
            <tr>
                <td>
                     <asp:Button ID="uploadButton" runat="server" Text="Upload" />
                </td>
            </tr>
        </table>
    </div>
    </form>
    <script type="text/javascript">
    //<![CDATA[
        var $ = $telerik.$;
        function pageLoad() {
            if (!Telerik.Web.UI.RadAsyncUpload.Modules.FileApi.isAvailable()) {
                $(".qsf-demo-canvas").html("<strong>Your browser does not support Drag and Drop. Please take a look at the info box for additional information.</strong>");
            }
            else {
                $(document).bind({ "drop": function (e) { e.stopPropagation(); e.preventDefault(); } });
                var dropZone1 = $(document).find("#DropZone1");
                dropZone1.bind({ "dragenter": function (e) { dragEnterHandler(e, dropZone1); } })
                                    .bind({ "dragleave": function (e) { dragLeaveHandler(e, dropZone1); } })
                                    .bind({ "drop": function (e) { dropHandler(e, dropZone1); } });
                var dropZone2 = $(document).find("#DropZone2");
                dropZone2.bind({ "dragenter": function (e) { dragEnterHandler(e, dropZone2); } })
                                    .bind({ "dragleave": function (e) { dragLeaveHandler(e, dropZone2); } })
                                    .bind({ "drop": function (e) { dropHandler(e, dropZone2); } });
            }
        }
 
        function dropHandler(e, dropZone) {
            dropZone[0].style.backgroundColor = "#357A2B";
        }
 
        function dragEnterHandler(e, dropZone) {
            var dt = e.originalEvent.dataTransfer;
            var isFile = (dt.types !== null && (dt.types.indexOf ? dt.types.indexOf('Files') != -1 : dt.types.contains('application/x-moz-file')));
            if (isFile || $telerik.isSafari5 || $telerik.isIE10Mode || $telerik.isOpera)
                dropZone[0].style.backgroundColor = "#000000";
        }
 
        function dragLeaveHandler(e, dropZone) {
            if (!$telerik.isMouseOverElement(dropZone[0], e.originalEvent))
                dropZone[0].style.backgroundColor = "#357A2B";
        }
    //]]>
    </script>
</body>
</html>

Web.config for Snausages
<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  -->
<configuration>
  <connectionStrings>
    <add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.web>
    <compilation debug="true" strict="false" explicit="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Speech, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      </assemblies>
    </compilation>
    <authentication mode="Forms">
      <forms loginUrl="~/Account/Login.aspx" timeout="2880" />
    </authentication>
    <membership>
      <providers>
        <clear />
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
      </providers>
    </membership>
    <profile>
      <providers>
        <clear />
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" />
      </providers>
    </profile>
    <roleManager enabled="false">
      <providers>
        <clear />
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>
    <httpHandlers>
      <add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />
      <add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false" />
    </httpHandlers>
    <httpModules>
      <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule" />
    </httpModules>
  <pages>
      <controls>
        <add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" />
      </controls>
    </pages></system.web>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
      <add name="RadUploadModule" preCondition="integratedMode" type="Telerik.Web.UI.RadUploadHttpModule" />
    </modules>
    <validation validateIntegratedModeConfiguration="false" />
    <handlers>
      <add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" />
      <add name="Telerik_RadUploadProgressHandler_ashx" verb="*" preCondition="integratedMode" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" />
    </handlers>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.WindowsAzure.Storage" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-2.1.0.4" newVersion="2.1.0.4" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

web.config for AgencyHome
<?xml version="1.0"?>
<!--  EDITING THIS FILE
 
      You should edit the copy of this Web.config file in the [application name] directory.
 
-->
<configuration>
  <configSections>
    <section name="DataAccessLayerWhereClause" type="BaseClasses" allowLocation="true" allowDefinition="Everywhere" />
  </configSections>
  <connectionStrings>
    <add name="DatabaseAgentCenter" connectionString="Data Source=IWI01AS14;Database=AgentCenter;Trusted_Connection=yes;User Id=INSWHL\AgencyWorksDW;Password="
      providerName="System.Data.SqlClient" />
    <add name="DatabaseASUREALeads" connectionString="Data Source=CORELLIA;Database=ASUREALeads;Trusted_Connection=yes;User Id=INSWHL\mhansen;Password="
      providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.net>
    <mailSettings>
      <smtp from="mhansen@asurea.com">
        <network host="ASUREAEX01" port="25" userName="mhansen" password="winter9529" defaultCredentials="false" />
      </smtp>
    </mailSettings>
  </system.net>
  <appSettings>
    <!--  EVENT LOGGING
          Set LogEvents value="false" to disable all logging to the system event log.
           
          DATABASE COMMAND LOGGING
          Set LogDatabaseCommands value="true" to log all database SQL commands to the
          system the event log. Only works if LogEvents = "true".
          
          DATABASE ERROR LOGGING
          Set LogDatabaseExceptions value="all" to log all database exceptions to the
          system the event log.  Set to "default" to only log exceptions that are unlikely
          to be caused by normal user interaction.  Only works if LogEvents = "true"
 
          Set LogCommitExceptions value="all" to log all database transaction commit exceptions
          to the system the event log.  Set to "default" to only log exceptions that are unlikely
          to be caused by normal user interaction.  Only works if LogEvents = "true".
     
          TRACE LOGGING OUTPUT
          To get detailed page-level tracing, set the following to "true":
              TraceDatabaseCommands, TraceDataAccessMethods, TraceTransactionCache
          Also set trace enabled="true" and pageOutput="true" in the
          APPLICATION-LEVEL TRACE LOGGING section below.
    -->
    <!-- VIEWSTATE LOCATION
       The ViewStateLocation specifies where the view state for a page
       should be stored. 
       1. Page (default): Stored it in the page.  Increases page size.
          Always works, but slower to encrypt, decrypt and send.
       2. Session: Store it in the session on the server.
          Results in better performance, but may not always work because
          session data may be timed out, or flushed to make room for more.
       3. Cache: Stored in the cache.  Similar to Session, but has more
          timeout options.
       4. File: Stored in a temporary file.  Will always work, but slower.
       5. Database: Stored in the database.  Will always work, but slower.
       See online help for more information.
    -->
    <add key="LogEvents" value="false" />
    <add key="SPHost" value="http://spdev2010:3333/AppProc/" />
    <add key="NewBusList" value="Submission Documents" />
    <add key="SPNewBusListEmail" value="newbizsp@ASUREASPCORE01.inswhl.com" />
    <add key="LogDatabaseCommands" value="false" />
    <add key="LogDatabaseExceptions" value="default" />
    <add key="LogCommitExceptions" value="default" />
    <add key="TraceDatabaseCommands" value="false" />
    <add key="TraceDataAccessMethods" value="false" />
    <add key="TraceTransactionCache" value="false" />
    <add key="WebServer" value="http://localhost" />
    <add key="ApplicationName" value="AgencyHome" />
    <add key="FCKeditor:BasePath" value="~/FCKeditor/" />
    <add key="AuthenticationType" value="None" />
    <add key="RoleManagement" value="None" />
    <add key="CookieEncryptionKey" value="{DE98517F-CC5F-4E78-BD61-A477E237B740}" />
    <add key="URLEncryptionKey" value="{DE98517F-CC5F-4E78-BD61-A477E237B740}" />
    <add key="ChartImageHandler" value="Storage=file;Timeout=20;Url=../Temp/;" />
    <add key="GoogleSignature" value="" />
    <add key="SecurityDisabled" value="False" />
    <add key="GoogleKey" value="" />
    <add key="GoogleClientID" value="" />
    <add key="DefaultDistanceUnit" value="miles" />
    <add key="DefaultLatitude" value="37.0902400" />
    <add key="DefaultLongitude" value="-95.7128910" />
    <add key="MobileUserAgents" value="android|iphone|ipod|iemobile|windows ce|windows mobile|windows phone os|blackberry|palm|skyfire|symbian|symbos" />
    <add key="aspnet:MaxHttpCollectionKeys" value="2000" />
    <add key="aspnet:MaxJsonDeserializerMembers" value="2000" />
    <add key="ViewStateLocation" value="Session" />
    <add key="MobileDefaultPageUrl" value="" />
    <add key="DefaultPageUrl" value="SUBMITBUS/Show-SUBMITBUS-Table.aspx" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.0" optimizeCompilations="true" tempDirectory="A:\ASP_NET_TempFiles\">
      <assemblies>
        <add assembly="System.Data.OracleClient, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Speech, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      </assemblies>
      <buildProviders>
        <remove extension=".lic" />
        <add extension=".lic" type="System.Web.Compilation.ForceCopyBuildProvider" />
      </buildProviders>
    </compilation>
    <roleManager enabled="false" cacheRolesInCookie="false" defaultProvider="AspNetSqlRoleProvider" />
    <siteMap defaultProvider="MenuElementsProvider">
      <providers>
        <add siteMapFile="~/Menu Panels/Menu.sitemap" securityTrimmingEnabled="true" name="MenuElementsProvider" type="AgencyHome.UI.MenuXmlSiteMapProvider" />
        <add siteMapFile="~/Menu Panels/MenuMobile.sitemap" securityTrimmingEnabled="true" name="MenuMobileElementsProvider" type="AgencyHome.UI.MenuXmlSiteMapProvider" />
      </providers>
    </siteMap>
    <httpHandlers>
<!--      <add path="ScriptResource.axd" verb="GET,HEAD" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" /> -->
      <add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false" />
      <add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false" />     
      <add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" />
    </httpHandlers>
    <httpModules>
      <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule" />
    </httpModules>   
    <!-- ASMX is mapped to a new handler so that proxy JavaScripts can also be served. -->
    <pages validateRequest="false" controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID" theme="Zinfandel">
      <namespaces>
        <clear />
        <add namespace="AgencyHome" />
        <add namespace="AgencyHome.UI" />
        <add namespace="AgencyHome.UI.Controls" />
        <add namespace="AgencyHome.Data" />
        <add namespace="AgencyHome.Business" />
        <add namespace="System" />
        <add namespace="System.Collections" />
        <add namespace="System.Collections.Specialized" />
        <add namespace="System.Configuration" />
        <add namespace="System.Text" />
        <add namespace="System.Text.RegularExpressions" />
        <add namespace="System.Web" />
        <add namespace="System.Web.Caching" />
        <add namespace="System.Web.SessionState" />
        <add namespace="System.Web.Security" />
        <add namespace="System.Web.Profile" />
        <add namespace="System.Web.UI" />
        <add namespace="System.Web.UI.WebControls" />
        <add namespace="System.Web.UI.WebControls.WebParts" />
        <add namespace="System.Web.UI.HtmlControls" />
        <add namespace="BaseClasses" />
        <add namespace="BaseClasses.Web.UI.WebControls" />
      </namespaces>
      <controls>
        <add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting" assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </controls>
    </pages>
    <!--  CUSTOM ERROR MESSAGES
          Set customErrors mode="On" or "RemoteOnly" to enable custom error messages, "Off" to disable.
          Add <error> tags for each of the errors you want to handle.
    -->
    <customErrors mode="RemoteOnly" defaultRedirect="Shared/Internal_Server_Error.html">
      <error statusCode="404" redirect="Shared/Internal_Server_Error.html" />
      <error statusCode="500" redirect="Shared/Internal_Server_Error.html" />
    </customErrors>
    <!--  AUTHENTICATION
          This section sets the authentication policies of the application. Possible modes are "Windows",
          "Forms", "Passport" and "None"
    -->
    <authentication mode="Windows" />
    <!--  IDENTITY
          Set Impersonate="true" to enable IIS to run this application under the credentials of the current user.
        Set Impersonate="false" to enable Active Directory single sign-in. Note: "false" disables Active Directory authentication for localhost.
    -->
    <identity impersonate="true" password="winter9529" userName="INSWHL\mhansen" />
    <!--  AUTHORIZATION
          This section sets the authorization policies of the application. You can allow or deny access
          to application resources by user or role. Wildcards: "*" mean everyone, "?" means anonymous
          (unauthenticated) users.
    -->
    <authorization>
      <allow users="*" />
      <!-- Allow all users -->
      <!--  <allow     users="[comma separated list of users]"
                             roles="[comma separated list of roles]"/>
                  <deny      users="[comma separated list of users]"
                             roles="[comma separated list of roles]"/>
            -->
    </authorization>
    <!--  APPLICATION-LEVEL TRACE LOGGING
          Application-level tracing enables trace log output for every page within an application. Set trace enabled="true" to enable application trace logging.  If pageOutput="true", the
          trace information will be displayed at the bottom of each page.  Otherwise, you can view the application trace log by browsing the "trace.axd" page from your web application root.
    -->
    <trace enabled="false" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true" />
    <!--  SESSION STATE SETTINGS
          By default ASP.NET uses cookies to identify which requests belong to a particular session. If cookies are not available, a session can be tracked by adding a session identifier to the URL.
          To disable cookies, set sessionState cookieless="true".
    -->
    <sessionState mode="InProc" stateConnectionString="tcpip=127.1.0.1:42424" sqlConnectionString="data source=127.1.0.1;user id=sa;password=" cookieless="false" timeout="60" />
    <!--  GLOBALIZATION
          This section sets the globalization settings of the application.
          Set responseEncoding to an appropriate value to ensure emails sent from your application are correctly encoded and display your language’s complete character set.  For example, if your default language is French and you want
          French characters from the extended French character set to be correctly included and displayed in your emails, may set responseEncoding to “windows-1252”.  Remove the responseEncoding parameter to use the setting in your
          machine.config file or to use the encoding defaults in your computer's Regional Options locale setting.
    -->
    <globalization fileEncoding="utf-8" requestEncoding="utf-8" responseEncoding="utf-8" culture="en-US" uiCulture="en-US" />
    <!--  HTTP RUN TIME This section sets the run time settings of the application.
    -->
 <httpRuntime maxRequestLength="10240" requestValidationMode="2.0" />
  </system.web>
  <location path="DefaultWsdlHelpGenerator.aspx">
    <system.web>
      <pages styleSheetTheme="" />
    </system.web>
  </location>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true">
      <add name="RadUploadModule" preCondition="integratedMode" type="Telerik.Web.UI.RadUploadHttpModule" />
    </modules>
    <handlers>
      <add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" />
      <add name="Telerik_RadUploadProgressHandler_ashx" verb="*" preCondition="integratedMode" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" />     
      <remove name="ChartImageHandler" />
      <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </handlers>
  </system.webServer>
  <!-- Following Section is used for data access layer where clauses and formulas
       Please modify this section using Batch Meister Wizard instead of directly
       making changes here.
  -->
  <DataAccessLayerWhereClause>
    <WhereClauses>
      <WhereClause Apply="false">
        <LHS>CompanyIDForMultiTenantApps1</LHS>
        <RHS>GetColumnValue("User",UserID(),"CompanyID")</RHS>
        <Operand>=</Operand>
      </WhereClause>
      <WhereClause Apply="false">
        <LHS>CompanyIDForMultiTenantApps2</LHS>
        <RHS>Session("CompanyID")</RHS>
        <Operand>=</Operand>
      </WhereClause>
    </WhereClauses>
    <Formulas>
      <Formula Apply="false">
        <ColumnName>CreatedBy</ColumnName>
        <Value>UserID()</Value>
        <Event>Initialize when inserting</Event>
      </Formula>
      <Formula Apply="false">
        <ColumnName>BirthDate</ColumnName>
        <Value>If(BirthDate > Today() , "Birthdate cannot be in the future" , "")</Value>
        <Event>Validate when inserting</Event>
      </Formula>
      <Formula Apply="false">
        <ColumnName>UpdatedOn</ColumnName>
        <Value>Today()</Value>
        <Event>Initialize when updating</Event>
      </Formula>
      <Formula Apply="false">
        <ColumnName>CreatedOn</ColumnName>
        <Value>Today()</Value>
        <Event>Initialize when inserting</Event>
      </Formula>
      <Formula Apply="false">
        <ColumnName>UpdatedBy</ColumnName>
        <Value>UserID()</Value>
        <Event>Initialize when updating</Event>
      </Formula>
    </Formulas>
  </DataAccessLayerWhereClause>
</configuration>

Code-Behind for Snausages
Imports Telerik
Imports Telerik.Web.UI
 
 
Public Class RadUpload
    Inherits System.Web.UI.Page
 
    Protected Sub Page_Inti(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
        MsgBox("Page Initialize") 'just for testing
    End Sub
 
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        MsgBox("Page Load") 'just for testing
    End Sub
 
    Protected Sub uploadButton_Click(sender As Object, e As EventArgs) Handles uploadButton.Click
        'If RadAsyncUpload1.UploadedFiles.Count > 0 Then
        'System.Threading.Thread.Sleep(3000)
        'End If
    End Sub
 
    Protected Sub RadAsyncUpload1_FileUploaded(sender As Object, e As Telerik.Web.UI.FileUploadedEventArgs) Handles RadAsyncUpload1.FileUploaded
        MsgBox("File Uploaded and named " + e.File.FileName + " Also known as " + e.File.GetName() + " And is this long " + e.File.ContentLength.ToString)
    End Sub
 
    Protected Sub RadAsyncUpload1_PreRender(sender As Object, e As EventArgs) Handles RadAsyncUpload1.PreRender
        Me.RadAsyncUpload1.AllowedFileExtensions = "jpg,png,pdf,xls,xlsx,doc,docx,tif,tiff,xps".Split(",")
        Me.RadAsyncUpload1.MaxFileSize = 20971520
        Me.RadAsyncUpload1.InputSize = 50
        Me.RadAsyncUpload1.EnableEmbeddedSkins = False
        Me.RadAsyncUpload1.Skin = ""
        Me.RadAsyncUpload1.HideFileInput = True
        Me.RadAsyncUpload1.MultipleFileSelection = AsyncUpload.MultipleFileSelection.Automatic
        Me.RadAsyncUpload1.TargetFolder = "~/Documents/Permanent"
        Me.RadAsyncUpload1.TemporaryFolder = "~/Documents/Temp"
    End Sub
End Class

Code behind for AgencyHome
Imports Telerik
Imports Telerik.Web.UI
 
 
#End Region
Namespace AgencyHome.UI
 
 
    Public Class RadUpload
        Inherits System.Web.UI.Page
        '        Public WithEvents RadAsyncUpload1 As Telerik.Web.UI.RadAsyncUpload
        '        Public WithEvents uploadButton As System.Web.UI.WebControls.Button
 
        Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 
        End Sub
 
        Protected Sub uploadButton_Click(sender As Object, e As EventArgs) Handles uploadButton.Click
            'If RadAsyncUpload1.UploadedFiles.Count > 0 Then
            'System.Threading.Thread.Sleep(3000)
            'End If
        End Sub
 
        Protected Sub RadAsyncUpload1_FileUploaded(sender As Object, e As Telerik.Web.UI.FileUploadedEventArgs) Handles RadAsyncUpload1.FileUploaded
            MsgBox("File Uploaded and named " + e.File.FileName + " Also known as " + e.File.GetName() + " And is this long " + e.File.ContentLength.ToString)
        End Sub
 
        Protected Sub RadAsyncUpload1_PreRender(sender As Object, e As EventArgs) Handles RadAsyncUpload1.PreRender
            Me.RadAsyncUpload1.AllowedFileExtensions = "jpg,png,pdf,xls,xlsx,doc,docx,tif,tiff,xps".Split(CChar(","))
            Me.RadAsyncUpload1.MaxFileSize = 20971520
            Me.RadAsyncUpload1.InputSize = 50
            Me.RadAsyncUpload1.EnableEmbeddedSkins = False
            Me.RadAsyncUpload1.Skin = ""
            Me.RadAsyncUpload1.HideFileInput = True
            Me.RadAsyncUpload1.MultipleFileSelection = AsyncUpload.MultipleFileSelection.Automatic
            Me.RadAsyncUpload1.TargetFolder = "~/Documents/Permanent"
            Me.RadAsyncUpload1.TemporaryFolder = "~/Documents/Temp"
        End Sub
    End Class
 
End Namespace

Any help you can provide would be much appreciated.  I'm currently evaluating the ASP.Net Rad Controls for use in our application.  Thanks again for anyone who has any ideas on what might be causing this.


1 Answer, 1 is accepted

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Plamen
Telerik team
answered on 07 Jan 2014, 04:08 PM
Hello Michael,

The issue described is quite unusual indeed. The first thing that I noticed on the pages is that you use is the jQuery 1.8.2. Would you please try to remove ti and if jQuery is needed just use the inbuilt one (1.9.1) as described in this help topic?

I would also like to ask you to ask you to elaborate in which browser do you use when you observe the unusual behavior and what is the exception because it is not quite clear from the provided information.

Please let us know as well if the default upload functionality of RadAsyncUpload is working correctly when the drag and drop is failing.

Regards,
Plamen
Telerik
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Plamen
Telerik team
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