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HomeHomeArchived Discus...Archived Discus...Developing Under Previous Versions of .NETDeveloping Under Previous Versions of .NETASP.Net 2.0ASP.Net 2.0Help with Custom ProvidersHelp with Custom Providers
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9/26/2007 1:39 PM
 
Wolverine

Joined: 8/21/2006
Posts: 144

What's up,
   I am already using my own custom AspNetMembershipProvider provider.  Works great.  I love that this is an option.

Now I would like to use a custom SqlDataProvider provider.  Created a new project in VS 2005 just like I did with the Membership provider. Updated the web.config file to point to my custom provider, just like I did before:

<data defaultProvider="MySqlDataProvider">
   <providers>
    <clear/>
    <add name="SqlDataProvider" type="DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider" connectionStringName="SiteSqlServer" upgradeConnectionString="" providerPath="~\Providers\DataProviders\SqlDataProvider\" objectQualifier="" databaseOwner="dbo"/>
    <add name="MySqlDataProvider" type="DotNetNuke.Data.SqlDataProvider, MyProvider.Provider.SqlDataProvider" connectionStringName="SiteSqlServer" upgradeConnectionString="" providerPath="~\Providers\DataProviders\SqlDataProvider\" objectQualifier="" databaseOwner="dbo"/>
   </providers>
  </data>

But after turning to run this MANY times I always get the error:

Value cannot be null.
Parameter name: type

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.ArgumentNullException: Value cannot be null.
Parameter name: type

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: 

[ArgumentNullException: Value cannot be null.
Parameter name: type]
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +2768503
   DotNetNuke.Framework.Reflection.CreateObject(String TypeName, String CacheKey, Boolean UseCache) +232
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectProviderName, String ObjectNamespace, String ObjectAssemblyName, Boolean UseCache) +571
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectNamespace, String ObjectAssemblyName) +17
   DotNetNuke.Security.Membership.Data.DataProvider.CreateProvider() +53
   DotNetNuke.Security.Membership.Data.DataProvider..cctor() +28

[TypeInitializationException: The type initializer for 'DotNetNuke.Security.Membership.Data.DataProvider' threw an exception.]
   DotNetNuke.Security.Membership.Data.DataProvider.Instance() +0
   DotNetNuke.Security.Membership.AspNetMembershipProvider..cctor() +20

[TypeInitializationException: The type initializer for 'DotNetNuke.Security.Membership.AspNetMembershipProvider' threw an exception.]

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +103
   System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +261
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +66
   DotNetNuke.Framework.Reflection.CreateObject(String TypeName, String CacheKey, Boolean UseCache) +232
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectProviderName, String ObjectNamespace, String ObjectAssemblyName, Boolean UseCache) +571
   DotNetNuke.Security.Membership.MembershipProvider.CreateProvider() +38
   DotNetNuke.Security.Membership.MembershipProvider..cctor() +13

[TypeInitializationException: The type initializer for 'DotNetNuke.Security.Membership.MembershipProvider' threw an exception.]
   DotNetNuke.Security.Membership.MembershipProvider.Instance() +0
   DotNetNuke.Entities.Users.UserController..cctor() +5

[TypeInitializationException: The type initializer for 'DotNetNuke.Entities.Users.UserController' threw an exception.]
   DotNetNuke.Entities.Users.UserController.GetUserCountByPortal(Int32 portalId) +0
   DotNetNuke.Entities.Portals.PortalInfo.get_Users() +17
   DotNetNuke.Entities.Portals.PortalSettings.GetPortalSettings(Int32 TabId, PortalAliasInfo objPortalAliasInfo) +1302
   DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabId, PortalAliasInfo objPortalAliasInfo) +83
   DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) +5776
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

 

Am I missing something?  Do I need to override something else?

Thanks very much!
 
New Post
9/27/2007 8:30 AM
 
Wolverine

Joined: 8/21/2006
Posts: 144

OK, going to answer my own question for other people who have the same problem.

Figured this out with another developer and by stepping through the source code.

I had everything correct, except that you have to keep the "defaultProvidername='SqlDataProvider'".  So you just have to name the DNN core sql provider something else like "DNNSqlDataProvider" and name your provider "SqlDataProvider".

When DNN makes the Provider object for the SQLDataproviders for some of the controllers (Membership Provider for one) it appends "Data.SqlDataProvider" onto the end of the name of the objects and then uses the Reflection class to take that new name and create the data object from it.

So by changing the name to "MySqlDataProvider", the name of the class was changing to "Data.MySqlProvider" and was not finding that.

SO, the above web.config statement SHOULD be:

<data defaultProvider="SqlDataProvider">
   <providers>
    <clear/>
    <add name="DNNSqlDataProvider" type="DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider" connectionStringName="SiteSqlServer" upgradeConnectionString="" providerPath="~\Providers\DataProviders\SqlDataProvider\" objectQualifier="" databaseOwner="dbo"/>
    <add name="SqlDataProvider" type="DotNetNuke.Data.SqlDataProvider, MyProvider.Provider.SqlDataProvider" connectionStringName="SiteSqlServer" upgradeConnectionString="" providerPath="~\Providers\DataProviders\SqlDataProvider\" objectQualifier="" databaseOwner="dbo"/>
   </providers>
  </data>

And it works just fine.

 
 
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