Develop Reference

Recaptcha doesn't load dynamically in DNN module using Recaptcha.dll

I've a problem to load Google Recaptcha control when I try to assign Public & Private Keys dynamically in code behind. It works fine in simple ASP.Net website but It doesn't work when I integrate it in DNN module.
Error Message: reCAPTCHA needs to be configured with a public & private key.
Stack trace:
DotNetNuke.Services.Exceptions.PageLoadException: reCAPTCHA needs to be configured with a public & private key. ---> System.ApplicationException: reCAPTCHA needs to be configured with a public & private key. at Recaptcha.RecaptchaControl.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.UI.Modules.ModuleHost.InjectModuleContent(Control content) at DotNetNuke.UI.Modules.ModuleHost.CreateChildControls() at System.Web.UI.Control.EnsureChildControls() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
--- End of inner exception stack trace ---
Markup:
<googleCaptcha:RecaptchaControl ID="ctlRecaptcha" runat="server" />
Code-behind:
protected void Page_Load(object sender, EventArgs e)
{
ctlRecaptcha.PublicKey = "xyz";
ctlRecaptcha.PrivateKey = "abc";
}

I actually have a tutorial on DNNHero.com that teaches on creating a custom DNN registration with the Google Recaptcha. It includes a video and code project.
Looking at my code, I included the attributes for publickey and privatekey on my ascx, but with dummy values:
<googleCaptcha:RecaptchaControl ID="ctlRecaptcha" runat="server" PublicKey="your_public_key" PrivateKey="your_private_key"/>
I set the attribute values like you did in my Page_Load event. This worked for me. Give it a try and comment if it still throw the error.

Conflict between Sharepoint List Name and Document Library Name

I my share point site I have one List named "People List" and one Wiki Page Library named "People". I have created one visual webpart to display data from People list. I have created webpart property to read listname.The webpart property name for my visual webpart is "People". When I check whether list exists in my site using the following function it returns true:-
public static bool isListExists(SPWeb spWeb, string listName)
{
return spWeb.Lists.TryGetList(listName) != null;
}
But there is no List named "People" exists in my site. Only wiki page library named "People" exists. When I added my webpart in "MySite/People/default.aspx" page I got error.
Column 'Title' does not exist. It may have been deleted by another user.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Column 'Title' does not exist. It may have been deleted by another user.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentException: Column 'Title' does not exist. It may have been deleted by another user.]
Microsoft.SharePoint.SPFieldCollection.GetField(String strName, Boolean bThrowException) +26422968
Microsoft.SharePoint.SPListItem.GetValue(String strName, Boolean bThrowException) +47
Microsoft.SharePoint.SPListItem.get_Item(String fieldName) +12
CL.DanceStudio.Portal.CLDance_Instructor.<>c__DisplayClass3.<Select>b__1() +1155
Microsoft.SharePoint.<>c__DisplayClass4.<RunWithElevatedPrivileges>b__2() +729
Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode) +27491206
Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(WaitCallback secureCode, Object param) +27194345
Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(CodeToRunElevated secureCode) +93
CL.DanceStudio.Portal.CLDance_Instructor.CLDance_InstructorUserControl.Select() +291
CL.DanceStudio.Portal.CLDance_Instructor.CLDance_InstructorUserControl.Page_Load(Object sender, EventArgs e) +52
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
System.Web.UI.Control.OnLoad(EventArgs e) +132
System.Web.UI.Control.LoadRecursive() +66
System.Web.UI.Control.AddedControl(Control control, Int32 index) +350
CL.DanceStudio.Portal.CLDance_Instructor.CLDance_Instructor.CreateChildControls() +194
System.Web.UI.Control.EnsureChildControls() +146
System.Web.UI.Control.PreRenderRecursiveInternal() +61
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3394
I think it is due to name conflict. Please provide me a solution.

Object reference not set to an instance of an object. c# RADTreeView telerik

I am creating RadTreeView nodes dynamically and I have created it successfully.But When I try to Add a sub-category node to it,sub-category is added successfully but at the end when I am reloading tree I am getting this error:
Object reference not set to an instance of an object.
[NullReferenceException: Object reference not set to an instance of an object.]
Telerik.Web.UI.RadComboBox.OnInit(EventArgs e) +40
System.Web.UI.Control.InitRecursive(Control namingContainer) +134
System.Web.UI.Control.AddedControl(Control control, Int32 index) +191
System.Web.UI.ControlCollection.Add(Control child) +86
Telerik.Web.UI.GridPagerItem.InitializePagerItem(GridColumn[] columns) +23849
Telerik.Web.UI.GridPagerItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) +170
Telerik.Web.UI.GridTableView.CreateTopPagerItem(Boolean useDataSource, GridColumn[] copiedColumnSet, Boolean isPagingEnabled, GridTHead thead) +93
Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +1156
Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +679
System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +149
System.Web.UI.Control.EnsureChildControls() +83
Telerik.Web.UI.GridTableViewBase.get_Controls() +15
Telerik.Web.UI.GridTableView.GetGridTable() +15
Telerik.Web.UI.RadGrid.PrepareRowsVisibility(GridTableView view) +33
Telerik.Web.UI.RadGrid.PrepareItems() +308
Telerik.Web.UI.RadGrid.ControlPreRender() +64
Telerik.Web.UI.RadCompositeDataBoundControl.OnPreRender(EventArgs e) +41
System.Web.UI.Control.PreRenderRecursiveInternal() +83
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +974
Dont understand this I tried to debug my code using debug point but everthing is executed alright but at the end I am getting this error.

yes after a long research on my code I got the answer that my grid was getting referenced to null.But its very sad that this is such a famous forum but no one was able to understand the stack trace.

I had this issue after a postback with a radgrid, the problem was the Datasourse was null. To fix it you only have to set DataSource = ""

DotNetNuke crashed after updating to v6.1.1 from 5.3.1

After updating DNN to the latest version, my site is not working. I suspect it to be a theme-related issue as I have been doing some debugging. But I can not narrow it down further.
The current stacktrace from my site looks like this:
[NullReferenceException: Object reference not set to an instance of an object.]
DotNetNuke.UI.Containers.ActionBase.get_ModuleContext() +6
DotNetNuke.UI.Containers.ActionBase.get_ActionRoot() +30
DotNetNuke.UI.Containers.ActionBase.OnLoad(EventArgs e) +42
[ModuleLoadException: An error has occurred.]
DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(String FriendlyMessage, Control ctrl, Exception exc, Boolean DisplayErrorMessage) +400
[PageLoadException: An error has occurred.]
DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +323
DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc) +89
DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(String FriendlyMessage, Control ctrl, Exception exc, Boolean DisplayErrorMessage) +525
DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(Control ctrl, Exception exc, Boolean DisplayErrorMessage) +189
DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(Control ctrl, Exception exc) +40
DotNetNuke.UI.Containers.ActionBase.OnLoad(EventArgs e) +85
DotNetNuke.Web.DDRMenu.Actions.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
[PageLoadException: An error has occurred.]
DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +323
DotNetNuke.Framework.PageBase.OnError(EventArgs e) +450
System.Web.UI.Page.HandleError(Exception e) +84
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6776
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +242
System.Web.UI.Page.ProcessRequest() +80
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.default_aspx.ProcessRequest(HttpContext context) in c:\windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84194812\86a29f2c\App_Web_toxjy2nh.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
From this I can see it has something to do with the DDRMenu component. I've tried my own skins for the site, and for those the exact same line says something about SolPartMenu/Action.
Help is much appreciated!

I had same problem during testing for a move to 6.x and you need to have the latest version of DDR menu, but I suspect that because you can't log-in, you can't install it.
I'm not sure which steps, if any you can cut out of this, but this is what I did.
revert to 5.6.3 from backups
Turn off compression in host settings
Set Minimal Extropy as default skin
set en-US as default language (not sure if this is necessary, it was for one upgrade and I tend to do it for major upgrades now)
Set DNN Nav as the defaut navigation provider in web.config
Change containers to use
<%# Register TagPrefix="dnn" TagName="ACTIONS" Src="~/Admin/Containers/Actions.ascx" %>
Uninstall DDRmenu 1.2.2
Remove DDRMenuNavigationProvider in web.config
Take new backups of database and file system
Upgrade to 6.x
Upgrade to DDR Menu v2.00.0
Set application pool to use .Net4
Re-apply skin to a couple of pages to check all works, if ok reset default skin
Reset compression and default language if necessary
Hope this helps

The problem you're seeing results from a conflict between how the DNN Upgrader runs and how the new DDR Menu wants to be upgraded. The DNN upgrader pushes the DDRMenu.dll into the bin directory but doesn't run the IUpgrade code for it so the DLL, code, and web.config settings don't match. The next version of the DDR Menu should resolve this issue.
Barry's recommendation should resolve the issue though it's more steps than I would take. The first thing I would try is replacing the new DDRMenu DLL (DotNetNuke.Web.DDRMenu.dll) with the old one from before the upgrade and see if that gets your site running. If it does, then you can install the newest version of the DDRMenu and you should be good to go.
If that doesn't work I usually try a combination of code and settings from the code prior to upgrade and good installs of DNN 6.1.1 that did go smoothly until the problem resolves. I wish I had a more specific answer but I'm usually in a hurry (cause the site's down) so I haven't taken the time to write up a more scientific approach.
Again, this should be resolved with the next version of the DDR Menu and the problem only affects sites that were already using the DDR Menu. But still, it's not as smooth as it should be.

Lucene .NET 2.3.2 Security Exception - Medium trust Issues

I'm only partially able to get Lucene .NET to work on GoDaddy. It throws a security exception on this line:
Hits hits = searcher.Search(query, filter);
Here are the details of this exception:
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
[SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
WeakHashTable.set_Item(Object key, Object value) in SupportClass.cs:1231
Lucene.Net.Search.CachingWrapperFilter.Bits(IndexReader reader) in CachingWrapperFilter.cs:69
Lucene.Net.Search.IndexSearcher.Search(Weight weight, Filter filter, HitCollector results) in IndexSearcher.cs:175
Lucene.Net.Search.IndexSearcher.Search(Weight weight, Filter filter, Int32 nDocs) in IndexSearcher.cs:156
Lucene.Net.Search.Hits.GetMoreDocs(Int32 min) in Hits.cs:104
Lucene.Net.Search.Hits..ctor(Searcher s, Query q, Filter f) in Hits.cs:67
Lucene.Net.Search.Searcher.Search(Query query, Filter filter) in Searcher.cs:57
details.RetrieveDocument() in d:\hosting\5304481\html\details.aspx.cs:42
details.Page_Load(Object sender, EventArgs e) in d:\hosting\5304481\html\details.aspx.cs:28
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6785
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +242
System.Web.UI.Page.ProcessRequest() +80
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.details_aspx.ProcessRequest(HttpContext context) in App_Web_pux0zsik.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
Before I give up on GoDaddy and move to DiscountASP, I wanted to check if anyone would know how I can tweak the code to operate fully in a Medium Trust environment.
Thanks.

I have answered a different question on getting Lucene.Net to work in medium trust. This is on newer versions of the library.
Lucene.NET in medium trust